Senecio longicollaris I.Thomps.

Riverina Fireweed

Muelleria 19: 156 (2004) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Erect annual herb to 1.8m high; stem glabrous or sparsely appressed-cottony. Leaves pseudopetiolate or sessile, very narrow-elliptic, denticulate; upper surface sparsely appressed-cottony; lower surface sparsely to moderately coarse-hairy, with hairs short, sometimes only cobwebby; mid-stem leaves auriculate of attenuate at base, 8–24 cm long, to 2.5 cm wide; upper leaves cuneate at base. Inflorescence corymbose, typically with 30–100 capitula; capitula non-radiate; involucre cylindric, 7.0–9.0 mm long, cobwebby or sometimes glabrescent; bracts mostly 12–14; bracteoles present; florets 30–50, bisexual and female. Cypselas lageniform, usually extremely attenuate apically, 4.0–6.0 mm long, brown, papillose-hairy scattered in lines; pappus of slender hairs 6–7 mm long, deciduous. Flowers all year, mostly summer–autumn.

GipP, Glep, HNF, LoM, MuF, VRiv, VVP, Wim. Grows on floodplains and by water in forest, woodland and shrubland mainly in the north of the state with scattered occurrences in the south at Portland, Beaumaris and Sandringham.

Created by: Daniel Ohlsen, 2015-09-18
Updated by: Val Stajsic, 2016-02-24
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 longicollaris in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Senecio longicollaris in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Wimmera present native
Glenelg Plain present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Murray Fans present native
Gippsland Plain present native
Highlands-Northern Fall present native

State distribution

Distribution map
South Australia
New South Wales