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Electronic Flora of South Australia species Fact Sheet

Family: Fabaceae
Acacia pickardii

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Citation: M.D. Tindale, Telopen 1 (5):372 (1978).

Derivation: pickardii—in honour of Mr. John Pickard, seniorecologist, Royal Botanic Gardens, Sydney

Synonymy: Not Applicable

Common name: None

Description:
Tall shrubs or small tree 3-5 m high with a single main trunk or branching into a few main stems at or near ground level developing a dense and intricate mid-green crown; branchlets sometimes ending in a spine, almost terete, finely striate, light green, more or less scurfy, sprinkled with short hairs but becoming glabrous on older branches; trunk with a rough fibrous deeply fissured grey bark; spreading by suckering.

Phyllodes acicular, 3-6 cm long, 1-1.5mm diam., rigid, erect, straight or curved, minutely pubescent, 4 veined in all, a prominent light brownish orbicular gland often with a raised rim situated just above the articulate base of the phyllode, a second gland situated at apex of phyllode at base of apical point. Stipules numerous, paired, spreading, rigid, spinescent, 3-8 mm long, yellowish green at base, the upper two thirds abruptly changing to reddish-brown.

Inflorescences simple and axillary solitary; flower-heads yellow c. 40-flowered, appears to be rather sparsely flowering; peduncles 10-15 mm long, puberulous; flowers 5-merous.

Legumes narrowly oblong, to 4 cm long and 14 mm wide, papery, light brown, glabrous, finely and openly reticulate. Seeds (immature) seemingly transverse with a filiform straight funicle.

Distribution:  Restricted to a small area in the North-Eastern region at Mount Gason Bore. On flats and low stony rises, associated with Atriplex spp. and Sclerolaena spp. Als0 N.T. (Andado Station P. K. Latz 6790 15.4.1977). Soils; crusty alkaline and neutral red duplex. Rainfall ca. 150 mm.

S.Aust.: LE.

Conservation status: Briggs & Leigh (1988) consider this species to be Vulnerable.

Flowering time: Irregular periods, probably after good rains.


SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: No text

Taxonomic notes: Like A. carnei fruiting seems to be rare on A. pickardii and pods are not represented in our collection. More observations on these two unusual species are needed, Tindale (1978). The description of the legumes is from Muslin (pers. com.

Cultivation: Not known in cultivation.

Author: Not yet available

Source:


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