Stenopetalum lineare R.Br. ex DC.

Narrow Thread-petal

Syst. Nat. 2: 513 (1821) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Annual or rarely biennial herb to 50 cm high, at least base of plants covered in irregularly branched or stellate hairs. Basal leaves to 5(–10) cm long, pinnately lobed, lobes lanceolate to linear, toothed or entire; stem leaves to 10 cm long, pinnately- or 3-lobed to entire and thread-like. Sepals 3–6 mm long; petals 6–13 mm long, chocolate-brown to olive-green, claw linear, lamina oblong. Fruit oblong to slightly obovoid, 4–7 mm long, 1.5–2 mm wide; pedicels appressed to erect, usually 1–2 mm long. Flowers mostly spring.

CVU, EGU, GipP, Glep, Gold, GGr, LoM, MuF, MuM, OtP, OtR, RobP, VRiv, VVP, WPro, Wim. Scattered across Victoria but mostly in drier north and north-west areas.

Some plants may have moderately hairy upper stems and inflorescences, but the sepals always have scattered or at most patchy hairs (cf. S. velutinum).

Plants from coastal areas are often much more robust and spreading, with thick, sometimes fleshy leaves that are usually entire. These plants are quite distinct from the slender erect forms with slender or pinnately lobed leaves that are commonly encountered further inland. This coastal form is sometimes treated as a separate taxon, Stenopetalum lineare var. canescens Benth. However, coastal plants are not always distinct, ranging from slender and erect, robust and erect, and robust and spreading. Likewise, plants from inland sites are occasionally much more robust and erect. Hence, these robust plants may just be responding to favourable conditions. Similarly, the degree to which leaves are lobed appears to vary greatly between plants at both coastal and inland sites, and does not seem sufficient to distinguish taxa.

Source: Entwisle, T.J. (1996). Brassicaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Andre Messina, 2015-08-28
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Brassicales
family Brassicaceae
genus Stenopetalum
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Stenopetalum lineare in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Stenopetalum lineare in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Glenelg Plain present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Robinvale Plains present native
Murray Fans present native
Gippsland Plain present native
Otway Plain present native
Goldfields present native
Central Victorian Uplands present native
Greater Grampians present native
East Gippsland Uplands present native
Wilsons Promontory present native
Otway Ranges present native

State distribution

Distribution map
Western Australia
Northern Territory
South Australia
New South Wales