Acanthospermum hispidum DC.


Prodr. 5: 522 (1836) APNI

Taxonomic status:Accepted

Occurrence status:Present

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.

Created by: Daniel Ohlsen, 2015-12-11
Updated by: Val Stajsic, 2018-05-09
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Asterales
family Asteraceae
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Acanthospermum hispidum in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Acanthospermum hispidum in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
East Gippsland Lowlands present introduced

State distribution

Distribution map
Western Australia
Northern Territory
New South Wales