Senecio glabrescens
Smooth FireweedErect annual or biennial to 40 cm high; stems glabrescent or sparsely appressed-cottony, multiple from base and branching from lower axils in first season. Leaves glabrous or minutely scabridulous on lowerstem leaves above, sparsely to moderately cobwebby below; mid-stem leaves sessile, auriculate with auricles bi- or tri-dentate, slightly amplexicaul, very narrow-elliptic or linear, 8–24 cm long, to 10 mm wide; upper leaves narrow-lanceolate. Inflorescences corymbose, typically with 50–200 capitula; capitula non-radiate; involucre narrowly cylindric, 6.0–8.0 mm long, cobwebbed near base; bracts 12–14; bracteoles present; florets 30–40, bisexual and female. Cypselas lageniform, 4.0–5.0 mm long, orange-brown or brown, papillose-hairy in lines; pappus of slender hairs 5–7 mm long, deciduous. Flowers summer–autumn.
VVP, GGr. In Victoria collected from the Grampians and Skipton from margins of watercourses and lakes.
This species is very poorly collected and possibly overlooked with known localities very disjunct. Senecio glabrescens is similar to the common and widespreadS. quadridentatus and S. campylocarpus. It can be distinguished from both of these species by being branched near the base.
