Acacia horridula
From Wikipedia, the free encyclopedia
| Acacia horridula | |
|---|---|
 | |
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. horridula |
| Binomial name | |
| Acacia horridula | |
 | |
| Occurrence data from AVH | |
| Synonyms[1] | |
| |
Acacia horridula is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a harsh, slender, single-stemmed shrub with often crowded, sharply pointed, narrowly trowel-shaped phyllodes, spherical heads of pale yellow flowers and terete, curved pods narrowed at both ends.
Acacia horridula is a harsh, slender, single-stemmed shrub that typically grows to a height of up to 60 cm (24 in) and has red-brown to light brown branchlets. Its phyllodes are often crowded, narrowly trowel-shaped, sharply pointed, 6–8 mm (0.24–0.31 in) long and 1.5–2.5 mm (0.059–0.098 in) wide with a prominent angle on the lower edge. There are bristly, narrowly triangular stipules at the base of the phyllodes. The flowers are borne in a spherical head in axils on a peduncle 5–10 mm (0.20–0.39 in) long, each head with four pale yellow flowers. Flowering occurs from May to August and the pods are terete, narrowed at both ends, up to 75 mm (3.0 in) long and 3.5 mm (0.14 in) wide, red-brown and striated. The seeds are oblong, 4–5 mm (0.16–0.20 in) long with a conical aril on the end.[2][3][4][5]
Taxonomy
Acacia horridula was first formally described in 1844 by the Carl Meissner in Lehmann's Plantae Preissianae from specimens collected near the Canning River in 1839.[6][7] The specific epithet (horridula) means 'prickly little'.[8]