Acacia quadrilateralis
From Wikipedia, the free encyclopedia
| Acacia quadrilateralis | |
|---|---|
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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. quadrilateralis |
| Binomial name | |
| Acacia quadrilateralis | |
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| Occurrence data from AVH | |
Acacia quadrilateralis is a shrub belonging to the genus Acacia and the subgenus Phyllodineae native to north eastern Australia.
The shrub can grow to a height of up to 3 metres (9.8 ft) and has a spindly habit with slender lenticellular branchlets.[2] Like most species of Acacia it has phyllodes rather than true leaves. They are found on short stem-projections usually in groups of two or three in the nodes of mature branchlets with a rather crowded appearance. The slender, rigid, evergreen phyllodes are erect to inclined and more or less quadrangular in section. They are pungent and usually have a length of 2 to 6 cm (0.79 to 2.36 in) and a width of 0.5 to 1 mm (0.020 to 0.039 in) with four main nerves. The shrub bloom between July and September and[3] produces simple inflorescences that occur singly in the axils that have spherical flower-heads containing 12 to 30 cream to pale yellow coloured flowers. After flowering firmly chartaceous, dark brown seed pods that resemble a string of beads appear. The pods are up to 9 cm (3.5 in) in length and have a width of 3 to 4 mm (0.12 to 0.16 in) containing longitudinally arranged seeds. The dull black to dark mottled brown to yellow seeds have an oblong shape and a length of 4 to 6 mm (0.16 to 0.24 in).[4]
Taxonomy
The specific epithet is a reference to the approximate tetragonus shape of the cross section of the phyllodes.[3]