Citation: F. Muell., Fragm. Phyt. Aust. 1:169 (1859).

Synonymy: Portulaca pilosa

Common name: Slender pigweed.

Description:
Stout erect annual herb with thickened taproot; stems erect to spreading, to 20 cm long; leaves spirally arranged, subsessile, linear, subfiliform, terete, sometimes constricted towards the base, acute, 1-2.5 x 0.1-0.4 cm; axillary hairs many, 5-15 mm long.

Heads 2-10-flowered, the axillary hairs of the surrounding bracts and leaves giving the overall appearance of woolly flower heads; sepals lanceolate to ovate, 3-4.5 mm long, not keeled; petals yellow, obovate to oblanceolate, 4-7 mm long, 1.5-4 mm wide; stamens 12-30; stigmas 3-7, on a style 2-4 mm long, about twice as long as the stigmatic arms.

Capsule ovoid to globose, 3-5 mm long, operculum about twice as long as the base; seeds subobovoid to orbicular, grey, shiny, c. 0.8 mm diam., tuberculate, the tubercles star-shaped at the base and nippled or pointed.

	Seed
Image source: fig. 134c in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).

Published illustration: Cunningham et al. (1982) Plants of western New South Wales, p. 299.

Distribution:  Grows mainly in sandplain areas. S.Aust.: NW, LE.   N.T.; Qld; N.S.W. Conservation status: native Flowering time: Oct. — March.

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

Biology: No text

Taxonomic notes: Geesink, Blumea 17:295 (1969), regarded this species as race 'filifolia' of Portulaca pilosa L. subsp. pilosa.

Author: Not yet available