Acanthospermum hispidum

de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 522. 1836

Treatment appears in FNA Volume 21. Treatment on page 37.
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Plants 10–60+ cm. Stems erect. Leaf blades rhombic-ovate to obovate, (20–)40–120(–150+) mm, faces finely pilosulous, gland-dotted. Fruits ± compressed, ± cuneate to obovate, 4–6+ mm, not notably ribbed, terminal spines 2, divergent, 3–4 mm, often 1 ± uncinate, prickles seldom notably uncinate, ± scattered. 2n = 22.

Phenology: Flowering year round, mostly Aug–Oct.
Habitat: Disturbed, often sandy sites
Elevation: 0–100+ m



Ont., Ala., Fla., Ga., N.J., Oreg., S.C., Va., South America, also introduced in Mexico, West Indies, Central America, Europe, Asia, Africa, Pacific Islands (Hawaii).


Selected References


Lower Taxa