| Spreading gidgee | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Caesalpinioideae |
| Clade: | Mimosoid clade |
| Genus: | Acacia |
| Species: | A. subtessarogona |
| Binomial name | |
| Acacia subtessarogona | |
 | |
| Occurrence data from AVH | |
Acacia subtessarogona, commonly known as spreading gidgee, is a tree in the family Fabaceae and the subgenus Juliflorae that is native to a small area in western Australia.
Description
Spreading gidgee grows as an upright tree to a height of up to 8 m (26 ft) and has ribbed branchlets that are densely hired between each of the ribs. Like most Acacia species, it has phyllodes rather than true leaves. These are flat, curved, and have a length of about 7 to 13 cm (2.8 to 5.1 in) and a width of 4 to 9 mm (0.16 to 0.35 in) and have longitudinal striations. When it between July and October[1] it produces simple inflorescences that occur in groups of one to five in the axils on 4 to 8 mm (0.16 to 0.31 in) long stalks. The flower-heads are a short cylindrical shape with a length of 6 to 12 mm (0.24 to 0.47 in) and densely packed with yellow flowers. The seed pods that form after flowering have a length of 6 to 12 cm (2.4 to 4.7 in) with a distinctive groove along each edge. The seeds insode are 5 to 6.5 mm (0.20 to 0.26 in) long and have an obloid shape.[2]
Distribution
Endemic to Western Australia, it occurs only in a small area of the Gascoyne River catchment near Carnarvon with outlying population near Wiluna.[2] It is often found situated in low-lying area, along creeklines[1] or on rocky ground growing in red loamy soils and is commonly associated with Acacia sclerosperma and Acacia tetragonophylla and sometimes with Acacia ancistrocarpa.[2]
See also
References
- 1 2 "Acacia subtessarogona". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- 1 2 3 "Acacia subtessarogona". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
- Mitchell, A. A.; Wilcox, D. G. (1994). Arid Shrubland Plants of Western Australia, Second and Enlarged Edition. University of Western Australia Press, Nedlands, Western Australia. ISBN 978-1-875560-22-6.