Prodr. 5: 522 (1836) APNI
Establishment means:Sparingly established
Erect annual herb to 1.3 m high; stems branching, hispid. Leaves sessile or shortly petiolate, ovate, oblong or obovate, 1–12.5 cm long, 10–30 mm wide, pilose, gland-dotted; margin shallowly toothed to coarsely dentate. Capitula ± sessile, 1–2 cm diam.; outer involucral bracts elliptic, 4–7 mm long; inner involucral bracts spinescent at maturity, 5–9, initially olive-green or brown, with broad multicellular hairs along margin; ray florets 5–9; ligule c. 1.5 mm long; disc florets 5–7. Cypselas black, enclosed within swollen involucral bracts; entire accessory fruit compressed, cuneate, 4–7 mm long, with uncinate prickles and 2 divergent terminal spines; terminal spines 4–5 mm long. Flowers summer–autumn.
*EGL. Also naturalised WA, NT, Qld, NSW. Native to South America. Found in Victoria in 2005 at Maffra in Gippsland, where it had spread from a batch of peanut straw brought from Queensland where the weed is more widespread and common.
|Bioregion||Occurrence status||Establishment means|
|East Gippsland Lowlands||present||introduced|
|New South Wales|