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Bensbach, PNG

bark

Natural populations

Corymbia tessellaris is a widespread in the eastern half of Queensland extending south from Cape York Peninsula into northern New South Wales (also occurs in southwestern Papua New Guinea) [1,2]. This species is often a tall, graceful tree up to 35 m tall but has a much reduced habit on exposed coastal sites. It occurs on plains or undulating terrain on a wide range of soil types but best growth is on deep sandy loams or alluvia [1].

Flowering and seeds

Flowering occurs during October to Feburary and fruits mature quickly one to two months later mainly during January to March [1]. There are about 155 viable seeds per gram; seeds start to germinate in about 3 days if grown at 35°C with no pretreatment required [3].

Cultivation and uses

Corymbia tessellaris is a fast growing tree tolerant of hot climates, drought and strong coastal winds [4]. It is planted for its ornamental value and has potential as a windbreak. The wood has been used for general construction purposes, as sawn and round timber in wharf and bridge construction, mining timber, railway sleepers and piles [1].

Key descriptors:
Climate parameters
Mean annual rainfall: 400-3500 mm
Rainfall distribution pattern: summer
Mean annual temperature: 21-30 °C
Mean max. temperature of the hottest month: 29-35 °C
Mean min. temperature of the coldest month: 4-21 °C
Frosts (approx. no. per year): frost free or more or less frost free or up to 20
Frost intensity: light to moderate (0 to -5°C)
Altitude: 5-900 metres
Tolerance of extremes in climate
Drought: known to be moderately drought tolerant or known to be tolerant of protracted droughts
Fire: regenerates foliage after damaging fire
Frost: tolerates frosts in the 0° to -5°C range
Wind: known or has attributes to make an excellent windbreak or tolerates salt-laden coastal winds
Soil factors
Texture: clay loam, heavy clay (greater than 50% clay), light to medium clay (35-50% clay), loam, sandy loam, sandy clay loam or sand
Soil pH reaction: acidic (less than 6.5) or neutral (6.5-7.5)
Soil depth: skeletal to shallow (less than 30 cm) or moderate to deep (30-100 cm or greater)
Drainage:  well-drained
Salinity: slightly to moderately saline or non-saline
Tolerance of adverse soils
Extremes in pH: acidity or alkalinity
Extremes in texture: clayey or sand
Salinity: moderate (-8 dS m-1) or slight (2-4 dS m-1)
Soil waterlogging tolerance: nil - sensitive to waterlogged soils
Biological traits under cultivation
Habit: evergreen, tree 10-20 m tall, tree > 20 m tall, usually produces a clear trunk
Longevity: moderate to long lived (>15 years)
Growth rate: fast or moderate
Coppicing ability: vigorous, responds to pruning, pollarding; lignotuberous
Root system: moderate to deep
Erosion control potential: excellent for clayey sites or excellent for sandy sites
Windbreak potential: excellent (known or has good attributes), tolerates salty coastal winds
Shade tolerance: grows best in full sunlight
Wood density: mod. to high (greater than 600 kg/cubic metre)
Carbon sequestration potential: moderate to high
Uses
Potential farm use: good ornamental attributes, shelterbelt or shade for stock
Urban use: good as an ornamental or amenity plant
Wildlife value: flowers are especially attractive to birds
Wood products: heavy construction, high quality fuelwood, railway sleepers, speciality timber for quality furniture

References

[1] Boland DJ, Brooker MIH, Chippendale GM, Hall N, Hyland BPM, Johnson RD, Kleinig DA, McDonald MW, Turner JD (2006) Forest Trees of Australia. CSIRO Publishing, Collingwood.

[2] Slee AV, Connors J, Brooker MIH, Duffy SM, West JG (2006) EUCLID Eucalypts of Australia. Third Edition CD ROM Centre for Plant Biodiversity Research. CSIRO Publishing, Melbourne.

[3] Gunn BV (2001) Australian Tree Seed Centre Operations Manual. Internal Publication, CSIRO Australian Tree Seed Centre, ACT. [Online at http://www.ensisjv.com/Portals/0/atsc-opmanualcomplete.pdf  Accessed March 2008]

[4] Queensland Environmental Protection Authority online information leaflet:http://www.epa.qld.gov.au/publications/p00293aa.pdf/Carbeen_iCorymbia_tessellaris/i.pdf

Internet links

PlantNET National Herbarium of New South Wales: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Corymbia~tessellaris 

Queensland Environmental Protection Authority: http://www.epa.qld.gov.au/publications/p00293aa.pdf/Carbeen_iCorymbia_tessellaris/i.pdf

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