TREAT Newsletter Storm Season October - December 2009

What about Brachiaria?

Barb Lanskey

It was a pity we had a poor attendance at the AGM on Friday 18th September. I was surprised in the morning when a lot of members at TREAT said they were otherwise engaged, had visitors or sick family members, but did expect a reasonable roll-up as we had an interesting guest speaker and had advertised the meeting in the paper. Next year we will make sure it doesn't conflict with school holidays and there have also been suggestions we hold the meeting on a Sunday afternoon. Feedback would be very welcome. I've since had a lot of apologies from people who simply forgot.

For those of us who did attend, it was an interesting and pleasant evening. Our Treasurer, Carmel Panther, showed slides of the financial situation with easy to understand pie charts included, then Nick Stevens, QPWS nursery manager, gave a power point presentation of what's been happening in the nursery and the projects where trees have been going. Nick included statistics of volunteer hours for the financial year (4,295) and trees in the nursery from small seedling stage to planting out stage (65,000). As president, I simply read my annual report of what's been happening with TREAT for the year.

New items of note for the year were the inclusion of the Habitat Linkages project in the top 25 Australasian ecological projects (see April-June 2009 newsletter), the monitoring of water quality in Peterson Creek by the School for Field Studies (see article this newsletter) and TREAT's electronic documenting of data relating to Peterson Creek for revegetation monitoring.

Another 5,400 trees were planted on TREAT'S Peterson Creek project: 1,800 trees on the De Tournouer property as infills and 3,600 trees on the Mete property. Funding assistance came from the Australian Government's Envirofund program. Maintenance of the plantings for this and previous years was funded by Terrain NRM as well as Envirofund.

TREAT volunteers also helped plant 14,150 trees for QPWS, Green Corridor and 2 members who had large plantings. Over 8,000 trees from the nursery were planted by members on their own properties, larger numbers (up to 300 trees) being obtained for approved projects.

Our membership base remains around 450 member households. New members join as other memberships lapse.

The Environmental Benefit Fund (EBF) committee was changed during the year and now comprises Ken Schaffer, Noel Grundon and Carmel Panther. Significant donations to the EBF were made by Trinity Anglican School students ($1,000), Joe Doecke through real estate sales ($1,200) and by many members who received larger numbers of trees for projects. Gift tree cards increased EBF funds by over $1,400.

The TREAT management committee elected for 2009/2010 is:

David, Angela and Helen are new to the committee and have expertise in various fields. Geoff Onus, Dawn Schaffer and Bronwyn Robertson stepped down from last year's committee but will still be involved with TREAT. Dawn was in charge of the schools program for several years, introducing the Flowing On program and updating the Tree Awareness program with fresh ideas. Bronwyn Robertson will remain our Newsletter Editor.

"What about Brachiaria?" was the first of many questions for our guest speaker, John Clarkson, principal botanist with the Conservation Management Branch of QPWS based in Mareeba. John's talk about grasses which have spread to form dense monospecific stands was illustrated with very telling photos. One of the worst, Gamba grass, now burns with such heat that it is killing forests to the point where they can't recover. Unlike stock, pastoral grasses don't respect fences and control efforts are often directed at containment within obvious boundaries. One point made was that in areas with no variety of grasses for stock grazing, if a disease destroys the grass, it effectively wipes out all the feed. While Brachiaria grass was not on John's target list for the evening, it's a common grass on the tablelands and does form monospecific stands.

After a supper with many home-made goodies, we got talking to John about his property at Topaz and he showed us some aerial photos of how his place is situated to become a corridor linking a small National Park area to the large Wooroonooran National Park. A visit there sounded a good field day proposition for next year.


Workshop

The Tree Identification and Seed Propagation workshop for 2009 is on Saturday 14th November, 9am - 12:30pm. Places are limited so bookings are required. Please contact either Barbara Lanskey on 4091 168 or the nursery on 4095 3406.


Inside this issue

Tree Planting

Field Day Experience

Water Quality Changes

Nursery News

Working with Schools

James Wright

Green Corridor's Tolga Site

Fruit Collection Diary

This newsletter is kindly sponsored by Biotropica Australia Pty Ltd.

www.biotropica.com.au


Tree Planting

Angela McCaffrey

Planting a tree is not the same every time - judgement needs to be used at each site, at each tree

1. At most TREAT plantings:

- Holes are already dug. Fertilizer and water crystals are used and already in the hole. Use a trowel.

- Assess the depth of the hole against the size of the tree's root system which may be the same size as the pot or less if the potting mix in the pot is low. If necessary, push some soil back into the hole to make the bottom roughly the same depth as the root system. If any fertipzer or water crystals have been left on the surface make sure they go into the hole with this soil. Make sure no grass or other dead matter from the surface is in the hole and pick out any that has found its way in. MIX the fertipzer, crystals and soil in the bottom of the hole with your trowel.

- Take the tree out of the pot. Usually a gentle tap across one corner of the pot with your trowel whilst holding the base of the stem is enough to release it. If not, tap the other corners, give it a gentle squeeze. Check the base of the pot to see if any roots coming through the bottom are caught; release them and push them back if you can. Keep tapping corners and gently squeezing until the pot comes free. NO HARD SQUEEZING OR ROUGH PULpNG. The aim is to keep as much potting mix as possible around the root system and disturb it as pttle as possible.

- Hold the tree by the base of the stem and support the root system with your other hand as you put it into the centre of the hole. Try to ensure the tree will be as upright as possible and that the top of the potting mix matches the top of the ground surface. Push as much soil as possible back in around the tree, watching for lumps getting stuck, so as not to leave any air gaps. Firm the soil around with your hands quite hard but not rock pke. After firming, the base of tree should now be around 1cm below the surface of the ground in a pttle dish created by firming the soil. This dish shape helps retain moisture and directs rain to the roots.

- ALL THE STEM MUST BE ABOVE THE SOIL and ALL THE ROOTS MUST BE BELOW THE SOIL with a thin covering of soil over the top of the potting mix.

Tree planting 1

Where soil is not loose and free flowing, i.e. either baked into hard lumps or wet and clay like, you need to break it up as much as possible to achieve the same result as above. Speed is not important, so take your time to break the soil up and avoid air pockets. If there doesn't seem enough soil to go back in, scoop some from nearby.

THE TREE WILL NOT GROW WELL AND WILL PROBABLY NOT SURVIVE IF WE DON'T PLANT IT RIGHT. ALL THE TIME, MONEY AND ENERGY USED TO RAISE THE TREE IN THE NURSERY AND PREPARE THE SITE WILL BE WASTED. ALL THE STEM MUST BE ABOVE THE SOIL and ALL THE ROOTS MUST BE BELOW THE SOIL.

2. Other organised plantings

Different types and levels of preparation are used at non-TREAT plantings.

Some may not dig holes but rip the ground in a continuous line. The trees are placed at regular intervals to be planted in the rip. Fertilizer and / or water crystals may or may not be used.

The aim is to get as close as possible to the same result as in 1 so use your trowel to create a hole for the tree and mix any fertilizer or crystals with the soil. Keep the normal surface level in mind when placing the tree into the rip and push all the soil back so there is still a slight dish shape with all the stems showing and all the roots covered with no air pockets and no dead grass left in the soil.

Then try to push as much of the rip back between the trees to avoid heavy rain washing out the soil.

Tree Planting 2

3. Mulching

Where straw or other material is brought on to the site, mulching is usually done as a separate job after the trees have been planted. Wear a dust mask. A good thick pile should be placed around the base of the tree with again a dish shape aimed for around the trunk to direct rain towards the roots.

Tree Planting 3

Where no extra materials are brought on to the site try to mulch each tree as you plant it, using whatever dead material is lying around; dead grass, weeds, twigs, etc. - anything to protect the root system.

A MULCHED TREE STANDS A FAR GREATER CHANCE OF SURVIVAL.


Field Day Experience

Doug Burchill

Tree-kangaroos!! Fancy seeing a tree-kangaroo on a TREAT field day, in a planting only 11 years old!!

The field day on Saturday 15th August to Peterson Ck. plantings on the western side of Peeramon Rd. was well attended with some 35 people trekking through the trees and surrounding grass. This was on our property and the western neighbour's, Fred Williams.

Simon Burchill led the group, giving details of the different ages of plantings and some of the history of the weather at the time of planting in various parts of the revegetation.

Tree Kangaroo - photo Simon

The group walked the best part of 2km from the afternoon tea spot to the larger remnant on Fred's property and back.

Probably the highlight of the afternoon was the spotting of two tree-kangaroos in the upper part of a Quandong. Simon had been keeping daily tabs on the adult and joey for the previous week, in various parts of the area.

The tree-kangaroos (Lumholtz's) were sighted in trees planted by TREAT on a creek side patch of ours in 1998. We planted 900 trees with some 8 or 9 people including both James and Joan Wright. The Elaeocarpus grandis have now reached about 20m in height and are surrounded by a range of other Mabi forest species.

The earliest plantings in the area visited were the roadside plantings on our place which were done to Qld Forestry standards in Jan - Feb 1981. This planting was of tallowwood, rose gum and Pinus carribea. The maintenance of this planting suffered through the lack of equipment, the wet conditions and the vigorous growth of grass. As well there has been an almost continual regeneration of camphor laurels in the area. The planting was upgraded during the first of the Greening Australia plantings on the Tablelands when the area was infilled with trees such as Syzygium spp. and bottlebrush.

The next planting was the 1998 TREAT planting. This was much more successful and although there were quite a few losses due to flooding, inundation, frost and cyclonic winds the patch is looking quite healthy, but somewhat thin in areal extent.

Following this, Simon planted a variety of Mabi trees between the roadside and the TREAT planting - along the northern bank of Peterson Creek in an area that was somewhat higher ground. These plantings were extended into the almost inundated meander loops on the southern banks of the creek to 'bulk up' the TREAT planted area. In the process quite a lot of the para grass infestation of the creek was cleared up, lowering the water level in the creek.

The next major planting, in 2004, was a TREAT project that extended, in 2 plantings, from the western boundary fence of our place to the area adjacent to the roadside planting (taking in a patch of ti-tree that Doug had planted when the price of ti-tree oil was high for some 2 months). This planting widened the plantings at the eastern end of the creek and planted the banks of the western end of the creek. The width of the planting varies due to the meander loops in the creek and the generosity, or more particularly the lack of generosity, of Doug in fencing the area. I have since reviewed the plantings on the property and am thinking/ planning on making quite a few additions to the present plantings.

In 2007, the plantings were extended by TREAT onto the Williams' section of Peterson Creek to the west of our place. This involved a bit of channel dredging, prior to the plantings. This has had the effect, downstream from Peeramon Road in lowering the stream level by an average of about 1 metre.

In various parts of the plantings people were reminiscing on the absolutely lousy conditions for some of the plantings. For example the western end of the planting on Burchill's was done into holes which had dried out and had large lumps of solid clay as back fill. The week after the planting the area was flooded and the creek continued to flow through and over the area to a depth of about 10cm for a fortnight.

One of the greatest problems with the plantings on this part of Peterson Creek has been that the soil is largely grey clay, is almost totally lacking in organic matter, is rock hard when it is dry, and will not support the weight of a person, let alone a piece of machinery, when it is wet.

A later planting on our place has now been done 4 times, and still has large holes in the plant cover. The soil in the area looks like a concrete slab in the dry. We have attempted to build up some mulch/ organic matter into the surface, but with little success. The area has had dolomite and gypsum spread around the trees.

We made a conscious decision some years ago to exclude cattle from the creeks on the property. This has taken some time but with the 2004 planting this was achieved, as all the other creek access had been fenced off up to a decade prior to this. The cattle are watered at the yards, using the same supply as the houshold. The water comes from a shallow well - some 4m deep - and is pumped by a submersible pump regulated by a timer switch, to a header tank above the house. The water is then reticulated back to the house, the garden, the sheds, and the cattle yards. An attempt was made to have water troughs in the paddocks. The problem was that we could only afford one trough at the time and had to shift it each time the cattle were moved.

Having the water in one spot also simplifies the checking of the cattle, and as various supplements are also availabe in the same area, this together with a buffalo fly backrubber means that the cattle are somewhat easier to muster when we need them yarded.

The most significant feature of the revegetation along this section of Peterson Ck. is the fact that quite a large animal has entered the area to feed in a patch of vegetation that is only 11 years old. I was particularly interested to hear Simon describe the tree-kangaroo as an opportunistic omnivore.

As well as this there has been quite a bit of natural regeneration of the local native species in the riparian revegetation. These include Calamus spp., Cryptocarya murrayi, Guioa acutifolia, Mallotus philippensis and Terminalia sericocarpa.

From a grazing point of view, the extensive banks of vegetation have moderated the wind conditions. This has meant that the pasture doesn't dry out as rapidly as it did prior to the revegetation, and the cattle spend less time with their backs to the wind looking miserable.

We enjoyed the chance for so many people to see what has been achieved.


Restoration and Water Quality Changes in Peterson Creek

David Manahan, School for Field Studies -
Centre for Rainforest Studies

In September 2008 and in conjunction with TREAT, we at the School for Field Studies began a water monitoring program in several catchments of the upper Barron River (outlined in TREAT News, Wet Season 2009). The initial report summarized results from 2008 dry season data and hinted at a positive relationship between canopy cover and higher water quality. Since most pollutants enter waterways from Nov-April, additional testing was mandatory; this report includes the 2008/2009 wet season and provides more comprehensive results.

Twenty testing days at sites in the Peterson Creek catchment, Leslie Creek catchment, and Severin Creek catchment were recorded between Nov 1, 2008 and April 30, 2009. Three main data sets were compiled: 1) comparing pre- and post-revegetation water quality on Peterson Creek; 2) comparing different catchments' test site canopy cover, total forest cover, and riparian vegetation with water quality; and 3) comparing macro-invertebrate species richness to water quality.

Current Peterson Creek water quality data was compared with pre-revegeation water quality data collected from 1995-1999 through the Waterwatch program. Since the Peterson Creek Revegetation Project began in 1997, Waterwatch data is from either pre-plantings or within the first couple of years of plantings when trees would still be quite small. These data sets were compared using a Principle Components Analysis (PCA), a statistical test which plots values by comparing measured variables. Results indicate a trend towards improved water quality, especially with lower water temperatures and increased dissolved oxygen (see Figure 1). Since dissolved oxygen is in part dependant on water temperature, and since increased canopy cover is associated with decreasing water temperatures, it would seem the revegetation efforts along Peterson Creek are improving its water quality. The PCA also indicated pre/post improvements in lower conductivity, pH and turbidity, though to a lesser extent. I speculate, however, that turbidity levels have also significantly improved, but due to a less precise methodology by Waterwatch collectors, current data needed adjustment to match, thereby reducing precision.

Peterson, Leslie, and Severin Creek sampling sites were compared by canopy cover and water quality. Results indicated a relationship whereby high canopy cover (> 80%) had the best water quality and low canopy cover (< 10%) had the worst (see Table 1). Results were not related to downstream effects as many of the worst water quality sites were also the most upstream testing locations. These catchments were also mapped for percentages of total forest cover and riparian vegetation. Results revealed a pattern of higher water quality associated with increased catchment forest cover and riparian vegetation (see Table 2).

Macro-invertebrate sampling echoed other findings: species richness significantly correlated with increasing canopy cover and dissolved oxygen. While not statistically significant, trends of higher species richness with lower water temperature and turbidity were also apparent.

While it is impossible to comprehensively demonstrate cause and effect relationships (due to extensive, un-measureable variables), results from all data comparisons show a positive relationship between trees (canopy cover; forested riparian zones and catchments) and water quality. Although several more years of testing are needed to corroborate these findings, current indications provide support for a connection between revegetation and improved water quality. As Peterson Creek's revegetation projects mature, I would also speculate increasingly improved water quality. Thus, in addition to TREAT's (and other restoration groups') larger mission of wildlife corridors, tree planting efforts appear to be providing additional ecosystem benefits and serving larger regional policy goals of improved water quality.

Figure 1: Principle Components Analysis of Peterson Creek water quality variables. Pre- and post-revegetation data averaged for clarity. Environmental variables are shown as vectors (solid lines). Vector length indicates variable's importance and increasing value. Vector direction shows the relationship of different variables to each other; those along similar trajectories are highly correlated. Therefore, comparisons of pre- and post-revegetation values indicate an improvement in all water quality indicators (dotted line), though most strongly correlated to decreasing water temperature and increasing dissolved oxygen.

PCA of Peterson Creek Water Quality.

Table 1: Water quality results from sampling sites, categorized by canopy cover (< 10%; 10-80%; > 80%). Site codes: Severin=SEV,PAT ; Peterson=PET ; Leslie=LES,GWN

Canopy Cover %Water Temp °C DO % satTurbidity NTUEC mS/cmTDS ppK
PET01023.767 70.050.022
LES02423.877.5230.07 0.03
GWN01722.774.423.7 0.050.024
LES01823.771.715.3 0.050.024
       
PET023723.578.217.40.080.034
PET036723.683.711.90.080.032
SEV027823.184.190.060.027
       
PAT028821.492.35.7 0.040.02
PAT019321.1101.53.4 0.040.018
SEV019520.987.2 6.1 0.040.017

Water Quality Values

best three values:    worst three values: 
Most upstream sampling sites: 

Table 2: Comparisons of water quality, forest cover, and riparian vegetation in Severin, Peterson, and Leslie Creek catchments. Letters denote statistically significant relationships. Darker shades indicate higher water quality or increasing vegetation.

 Severin Creek Peterson CreekLeslie Creek
DO (% sat)ABB
EC (mS/cm)ABB
Turbidity (NTU)AAB
Water Temp (°C)ABB
TDS (ppK)ABC
% Catchment Forest65.06%27.47%6.67%
% Riparian Vegetation72.30%49.79%24.54%

Nursery News

Nick Stevens

With little or no rain falling in most areas of the tablelands over the last few months, it is reassuring to see that TREAT and QPWS plantings from January, February and March this year are now well established. It appears that early site preparation and planting has paid off, with very few losses due to the dry conditions.

The January planting at Curtain Fig National Park has suffered a few losses, mostly stock that was a little smaller than desired at planting time; however the rest of the trees have established nicely despite being the driest site planted last season. The success of this planting and other early established plantings such as the October 2008 infill plantings at Peterson Creek were most likely assisted by the use of water holding crystals added to the soil at planting time.

QPWS plantings at Massey Creek and Tully have also fared well with minimal losses. Again, water crystals were utilised for the Tully plantings in May and June contributing to successful establishment; however they were not used at the Massey Creek plantings in February due to the very wet conditions.

Nursery Production 2008-2009

The following table gives the Lake Eacham Nursery production figures for the 2008-2009 financial year, in comparison to the previous year's figures, as presented at TREAT's AGM on 18th September 2009.

Production 2007- 20082008- 2009
TREAT Volunteer hours at nursery3,4504,295
Potting (including re-potting)46,50053,000
Stock held in nursery (end of year)67,00065,000
Total Stock leaving nursery21,60029,450
Trees to QPWS Projects10,60014,900
Trees to TREAT Projects4,0005,425
Trees to TREAT Members6,0008,600

Working with Schools

Dawn Schaffer

National Tree Day in July was chosen for this year's planting by students at Millaa Millaa State School. The students are becoming very familiar with the process of planting and recording their trees. This is the third year we have planted with them at Millaa Millaa. Each tree is recorded in a grid system along with the student's name and this information plus the students' research is formed into a book each year which becomes part of the school's archives. It will be so interesting for students when they return in the future to find their trees. It is very rewarding to be taken by the students to the trees they previously planted and be told very confidently the botanical name of "my" tree. It soon becomes evident they have proud ownership of their trees. These plantings are part of a long term project which will eventually link up with a planting carried out by TREAT members back in the 1980s.

In August we presented the Flowing On programme to the Year 7 students from Malanda Primary School. We met the students at Allumbah Pocket, Yungaburra, where they participated in a Visual Assessment of Peterson Creek. Lana Hepburn spoke to the students on water quality and helped them scoop for vertebrates and invertebrates and collect water samples. After lunch back at the Lake Eacham nursery, the students participated in a variety of activities. These included using the water monitoring equipment to test the collected water samples, recording and calculating the means of their findings in their workbooks, testing the pH levels of different fluids (the coke was very popular) and language and art activities all relating to water quality. The programme was repeated the following day for the second Year 7 class. This intensive programme means a very busy day for the students and they are to be congratulated on their very mature approach and attentiveness to the tasks set for them.


James Wright

Carole Leech

TREAT has been the richer for the lives of James and Joan Wright in our community. Dr. James Wright, with his courtly manner, welcomed us into the fold of tree planters while Joan steered us through the maze of seed propagation to the vision they shared of renewed rainforest.

Retiring from a busy medical practice in Cairns, James brought many skills, amongst them, as treasurer, keeping an immaculate record as membership increased for TREAT. We always looked forward to James' report at the AGM, accurate and precise and always delivered with his gift of humour.

It was a bustling retirement signposted with TREAT meetings. Joan and James, together with Geoff Tracey, Tony Irvine, Les Barnes and David Leech, determined to protect the precious rainforest remaining. Their farsighted vision began an ongoing commitment to grow and replant denuded country. These exuberant discussions began at James and Joan's home, "The Cycads", and were tempered by James making tea.

James and Joan enjoyed the freedom of sailing on Tinaroo together, setting off daily at midday for a jaunt before luncheon. Music making was another joy and together they joined Atherton Light Orchestra.

James' observant nature was nourished by years of medical service in Northern Rhodesia (now Zambia) with his beloved family from 1955 to 1966. James' humanity and companionship to us all is remembered. We miss him.

(James Wright died in July, aged 92 years)


Green Corridor's Tolga Site

Penny Scott

Residents of Tolga will be particularly pleased with the new Green Corridor site, showcasing an innovative partnership between Barron Catchment Care and the Tablelands Regional Council (TRC). In collaboration with TREAT, a community planting day on October 3rd attracted about 70 volunteers, and kicked off an exciting few weeks of involvement by community members, international volunteers through CVA, School for Field Studies students, TAFE students and children from Tolga State School. Tolga State School will adopt this site and use it for educational purposes during the planting and over the coming years, as students watch the trees grow, and observe the effects of stopping and slowing down storm water flows.

Kennedy Highway in flood

Through a combination of engineering led by TRC and revegetation undertaken through Barron Catchment Care's Green Corridor Project, works on this site will significantly reduce sediment flowing into the Barron River and out to the Great Barrier Reef. Manmade rural storm-water channels currently carry enormous volumes of red muddy water flowing largely from agricultural land, downhill at high velocity into the Barron. As well as causing environmental destruction, this muddy water regularly floods the Kennedy Highway and inundates public and private property (see photo).

To address this major issue, three large detention ponds are being installed on council land on lower Griffin Road. Drop basins will channel the storm water into these ponds where most of it will quickly seep back into the ground. The site has been fully designed by Joe Rhodes on behalf of TRC, including deciding where revegetation should take place, and where access routes should be left bare. Around 6,000 trees and shrubs will be planted both inside and around the detention ponds, to secure the area, increase the porosity and absorption ability of the soil and also to create habitat for wildlife. Species selection for planting within the detention ponds themselves is challenging as they need to be able to handle seasonal inundation, as well as extended dry periods. In these areas, we've focused on planting riverine species that occur naturally in the area such as Callistemons, Casuarina, Figs, Lomandra and some Blue gums. This combination of engineering and environmental restoration will deliver a unique blend of water quality, biodiversity, social, educational and economic results!

Griffin Road detention ponds

Due to the unique nature of this site, we will be looking closely to see how the plants cope with not only the variation in water levels, but also the deposition of silt. Joe's complex design allows for heavy vehicular access for the purpose of removing the silt from the lowest lying areas. However, there is likely to be some level of fine silt build up in the revegetated areas and we will all be watching closely to garner lessons to inform future similar initiatives.

The Green Corridor operates through a wide range of community, government and corporate partnerships, receiving sponsorship from various sources, in particular Cairns Airport Pty Ltd; hence the need to keep impeccable financial and technical records, and ensure that there is a lot of communication and publicity. Through its partnership with Terrain NRM, Barron Catchment Care secured funding for this site from the Australian Government's Reef Rescue Program, which is investing heavily in the Wet Tropics area in a bid to reduce the level of sediment and nutrient flow into the Great Barrier Reef Basin. This project will make an enormous contribution towards the aims of this programme - as well as helping the community of Tolga!


Fruit Collection Diary July - September 2009

SpeciesCommon NameCollection Location/
Regional Ecosystem
Acmena divaricataCassowary Satinash7.8.2
Acmena hemilampraBlush Satinash7.3.10
Acronychia vestitaWhite Aspen7.8.2
Aglaia sapindinaBoodyarra7.8.1
Aleurites rockinghamensisCandlenut7.8.4
Arytera paucifloraPink Tamarind7.8.2
Beilschmedia oligandraIvory Walnut7.8.1
Cananga odorataYlang Ylang7.8.1, 7.3.10
Canarium australianum var australianumScrub Turpentine7.3.10
Cerbera floribundaGrey Milkwood7.3.10
Chionanthus ramifloraNorthern Olive7.3.10
Clerodendron longiflorum var glabrumWitches Tongues7.3.10
Commersonia bartramianaBrown Kurrajong7.3.10
Cryptocarya mackinnonianaRusty Laurel7.8.4
Cryptocarya oblataBolly Silkwood7.8.2
Davidsonia pruriensDavidson's Plum7.8.4
Elaeocarpus grandisSilver Quandong7.8.2, 7.3.10
Endiandra bessaphilaBlush Walnut7.8.2
Endiandra globosaBall-fruited Walnut7.8.1
Ficus crassipesRound Leaf Banana Fig7.8.2
Ficus platypodaFig7.8.2, 7.8.3
Ficus racemosaCluster Fig7.3.10
Ficus variegataFig7.8.1
Ficus virensFig7.3.10
Firmiana papuanaLacewood7.8.3
Flindersia acuminataSilver Silkwood7.8.1
Flindersia bourjotianaSilver Ash7.8.2
Glochidion harveyanumButtonwood7.8.1
Helicia lamingtonianaLamington's Silky Oak7.8.4
Homalanthus novo-guineensisNative Bleeding Heart7.3.10
Litsea leefeanaBollywood7.8.4
Lophostemon suaveolensSwamp Box7.8.3
Melicope xanthoxyloidesYellow Evodia7.3.10
Mischocarpus exangulatusRex Tokoonja7.3.10
Placospermum coriaceumRose Silky Oak7.8.2
Polyscias elegansCelerywood7.8.3
Pouteria myrsinodendronYellow Boxwood7.8.1
Prunus turnerianaAlmondbark7.8.2
Syzygium alliiligneumOnionwood7.8.1
Syzygium boonjeeBoonjee Satinash7.8.2
Syzygium gustavioidesWatergum7.8.2
Ternstroemia cherryiCherry Beech7.8.2
Tetrasynandra longipesTetra Beech7.3.10
Toechima erythrocarpumPink Tamarind7.3.10
Xanthostemon chrysanthusGolden Penda7.3.10

↑ Top of Page


More Newletters