Senecio hispidissimus I.Thomps.

Coarse Fireweed

Muelleria 19: 138 (2004) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: rare (r)

Erect annual to 1.5 m high; stems densely coarse-hairy, density reducing upwards. Leaves sessile, auriculate, coarse dentate to lobate or occasionally not dissected, with remotely and sparsely denticulate margins, both surfaces moderately to densely coarse-hairy; mid-stem leaves narrow-elliptic or linear in outline, 6–13 cm long, 1–3.5 cm wide; upper leaves narrow-oblong to narrow-lanceolate. Inflorescence corymbose, typically with 10–100 capitula; capitula non-radiate; involucre cylindric to narrowly cylindric, (5.0–)6.0–9.0 mm long, glabrous; bracts mostly 11–14; bracteoles present; florets 20–45, bisexual and female. Cypselas cylindric to narrow-ellipsoid, 1.5–2.8 mm long, tan or brown, papillose-hairy in dense lines; pappus of slender hairs, 6–7 mm long, deciduous. Flowers spring–summer.

DunT, Glep, GGr, LoM, MuM, VVP, WPro. Also SA, Tas. Grows in sandy soil in heathlands, woodlands and shrublands in lowland areas of Western Victoria south from Little Desert and east to the Grampians with a disjunct occurrence at Wilson’s Promontory.

A few collections from southern Victoria have narrower capitula with fewer florets and less densely hairy stems than is typical of this species possibly because of introgression with Senecio hispidulus (Thompson 2004a).

Created by: Daniel Ohlsen, 2015-09-18
Updated by: Val Stajsic, 2019-11-19
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Asterales
family Asteraceae
genus Senecio
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Senecio hispidissimus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Senecio hispidissimus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Glenelg Plain present native
Victorian Volcanic Plain present native
Greater Grampians present native
Dundas Tablelands present native
Wilsons Promontory present native

State distribution

Distribution map
South Australia