Acacia dorsenna is a shrub belonging to the genus Acacia and the subgenus Phyllodineae that is endemic to Western Australia.
| Acacia dorsenna | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Caesalpinioideae |
| Clade: | Mimosoid clade |
| Genus: | Acacia |
| Species: | A. dorsenna
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| Binomial name | |
| Acacia dorsenna | |
| |
| Occurrence data from AVH | |
The dense domed shrub typically grows to a height of 1.0 to 1.6 metres (3 to 5 ft) and 3.0 metres (10 ft) wide.[1] The smooth dull green phyllodes have an elliptic to obovate shape. The phyllodes are around 10 to 15 mm (0.39 to 0.59 in) in length and have a width of 5 to 9 mm (0.20 to 0.35 in) with obscure midrib and lateral nerves.[2] It blooms from August to September producing yellow flowers.[1] The inflorescences are found in groups of seven to ten. The spherical flower-heads contain 15 to 21 bright golden yellow flowers. The narrowly oblong brown seed pods that form after flowering have a length of around 6 cm (2.4 in) and a width of 11 mm (0.43 in). The oblong-elliptic shaped seeds have a length of up to 4 mm (0.16 in).[2]
It is a member of the Acacia prainii and resembles Acacia camptoclada and some forms of Acacia merrallii.[2]
It is native to a small area in the Goldfields-Esperance region of Western Australia in a small area in the Dundas where it is found on low rocky hills growing in rocky sandy-loam-clay soils.[1] Only two populations of the shrub are known both of which are located about 25 km (16 mi) to the north of Norseman in mallee or shrubland communities.[2]
See also
editReferences
edit- ^ a b c "Acacia dorsenna". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ a b c d "Acacia dorsenna". World Wide Wattle. Western Australian Herbarium. Retrieved 23 April 2019.