Lindley in T.L. Mitchell, J. Trop. Austral. 355 (1848).
Synonymy: Not Applicable
Common name: Spiked (or annual) riceflower.
Erect plant to 0.75 m, mainly herbaceous but woody at the base; stems almost glabrous or lightly covered with scattered hairs; leaves narrow-elliptic, 3-19 mm long, 0.5-3 mm wide, acute or rarely obtuse, glabrous or sparsely covered with fine loosely appressed hairs.
Spikes terminal, to 11.5 cm long at maturity, interrupted, with the rhachis more hairy than the stem; peduncle up to 19 mm long, glabrous or bearing scattered hairs; involucral bracts absent; pedicels hairy; flowers bisexual, yellow, 4.5-5.5 mm long; perianth glabrous inside, densely covered outside with long patent hairs becoming appressed on the lobes, constricted at the neck, circumscissile above the ovary after flowering.
Seed pear-shaped, glabrous, black, foveate with the pits in rows.
||Pimelea trichostachya twig and flower.
Image source: fig 449k in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).|
On sandy soils over underlying clays.
S.Aust.: NW, LE, GT, FR, EA, EP, MU. W.Aust.; N.T.; Qld; N.S.W.; Vic.
Flowering time: Aug. — Dec.
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
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