Pimelea serpyllifolia subsp. serpyllifolia

Thyme Rice-flower

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Shrub 0.1–1.5 m high, rarely prostrate; stems glabrous. Leaves opposite, crowded, shortly petiolate, narrowly elliptic to obovate, 2–7 mm long, 1–2.5 mm wide, concolorous, glabrous; margins sometimes recurved. Inflorescence terminal, but sometimes on a very short lateral branchlet, a compact head of 4–12 flowers; involucral bracts leaf-like, 2 or 4 sessile, elliptic-obovate, 2–7 mm long, 1–4 mm wide, glabrous, green. Flowers unisexual, usually yellow, sometimes yellowish-green or white, glabrous outside and inside (rarely sparsely hairy inside); floral tube 1.5–2.5 mm long, style-portion of female flowers shorter than ovary-portion; sepals 0.8–1.7 mm long; pedicel hairy; stamens shorter than sepals; anthers opening laterally or somewhat laterally. Fruit dry, enclosed or naked.  Flowers mainly winter–spring.

Brid, GipP, Glep, LoM, MuM, OtP, OtR, Strz, VVP, WaP, WPro. Grows in shrubland and woodland, usually in calcareous soils; mostly near the coast but also in far north-west of State.

Characterized by the crowded leaves and the glabrous flowers borne in a terminal inflorescence. Subsp. occidentalis, a Western Australian endemic, differs from subsp. serpyllifolia in having stems hairy for a few internodes below each inflorescence and flowers which are at least sparsely hairy inside.

Stunted, spinescent plants primarily from the basalt plains and further north (once included in P. serpyllifolia) have been recognised as a distinct species, P. spinescens.

Source: Entwisle, T.J. (1996). Thymelaeaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Malvales
family Thymelaeaceae
genus Pimelea
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Pimelea serpyllifolia subsp. serpyllifolia in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Pimelea serpyllifolia subsp. serpyllifolia in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Glenelg Plain present native
Bridgewater present native
Victorian Volcanic Plain present native
Gippsland Plain present native
Otway Plain present native
Warrnambool Plain present native
Wilsons Promontory present native
Otway Ranges present native
Strzelecki Ranges present native

State distribution

Distribution map
Western Australia
South Australia
New South Wales