Biology:Endiandra globosa
| Endiandra globosa | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Magnoliids |
| Order: | Laurales |
| Family: | Lauraceae |
| Genus: | Endiandra |
| Species: | E. globosa
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| Binomial name | |
| Endiandra globosa Maiden & Betche
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Endiandra globosa is a medium-sized Australian rainforest tree. Despite the common name of black walnut, this tree is unrelated to northern hemisphere walnuts, and is a laurel.
The black walnut is restricted to riverine rainforest. Growing on rich alluvial soils and on moist slopes in subtropical rainforest; in the Brunswick and Tweed valleys in New South Wales and adjacent areas in Queensland. Another population grows from Ingham to Cairns in tropical Queensland.[1]
The black walnut is considered rare, with a ROTAP rating of 2RC-. Several signposted specimens can be seen on the roads around the town of Murwillumbah in north-eastern NSW.
Description
The unbuttressed trunk is of whitish, grey or brown bark. A mature tree grows to around to 25 metres tall.
Leaves are broad-elliptic to elliptic or ovate, veiny and usually 7–15 cm long, 3–6 cm wide, veins often yellowish. The horizontal form of the branches and attractive dark foliage makes this a particularly beautiful tree.
Creamy white flowers form between October and January. The fruit matures in autumn and is often the size of a tennis ball. The black, fleshy drupe contains a large woody seed, which itself has attractive veiny patterns. Germination is fairly slow but reliable. Roots and shoots appear around November.
References
- Floyd, Alexander G., Rainforest Trees of Mainland South-eastern Australia, Inkata Press 1989, ISBN:0-909605-57-2
- "Endiandra globosa". PlantNET - NSW Flora Online. http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Endiandra~globosa. Retrieved 2009-08-03.
Wikidata ☰ Q937807 entry
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