Acanthospermum humile

(Swartz) de Candolle

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

Basionym: Melampodium humile Swartz Prodr., 114. 1788
Treatment appears in FNA Volume 21. Treatment on page 37.

Plants 10–20(–30+) cm. Stems decumbent to erect. Leaf blades oval to lyrate, 10–30(–45) mm, faces ± pilosulous to sparsely sericeous, gland-dotted. Fruits strongly compressed, ± cuneate, 2–3(–4) mm, usually 3-ribbed, terminal spines 2, divergent, 2–3(–4) mm, often 1 ± uncinate, prickles ± uncinate, mostly along 2 ribs and around apices.

Phenology: Flowering all year.
Habitat: Disturbed, often sandy sites
Elevation: 0–10+ m



Introduced; Ala., Fla., S.C., West Indies, also introduced in Central America, South America.


Selected References


Lower Taxa

... more about "Acanthospermum humile"
John L. Strother +
(Swartz) de Candolle +
Melampodium humile +
Ala. +, Fla. +, S.C. +, West Indies +, also introduced in Central America +  and South America. +
0–10+ m +
Disturbed, often sandy sites +
Flowering all year. +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Introduced +
Compositae +
Acanthospermum humile +
Acanthospermum +
species +