Acanthospermum humile (Sw.) DC.  
Family: Asteraceae
Low Starburr
Acanthospermum humile image
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John L. Strother in Flora of North America (vol. 21)
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. Flowering all year. Disturbed, often sandy sites; 0-10+ m; introduced; Ala., Fla., S.C.; West Indies; also introduced in Central America, South America.
Acanthospermum humile
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Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
Acanthospermum humile image
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