Abutilon hirtum

(Lamarck) Sweet

Hort. Brit., 53. 1826.

Basionym: Sida hirta Lamarck in J. Lamarck et al., Encycl. 1: 7. 1783
Treatment appears in FNA Volume 6. Treatment on page 223. Mentioned on page 220, 221.

Herbs, 1 m. Stems erect, puberulent and with simple hairs 2–5 mm, viscid. Leaves: stipules recurved, lanceolate, 7–9 mm; petiole as long as or longer than blade; blade somewhat discolorous, ovate to suborbiculate, 5–7 cm, base cordate, margins finely serrate, apex acuminate, surfaces softly tomentose. Inflorescences solitary flowers or terminal panicles. Flowers: calyx 12–17 mm, lobes not overlapping, erect, ovate; corolla orange-yellow with dark red center, petals 18–20 mm; staminal column pubescent; style 20–25-branched. Schizocarps oblate, 12–14 × 20 mm; mericarps: apex obtuse to acute, surface stellate-hirsute. Seeds 3 per mericarp, 2.4–2.8 mm, minutely scabridulous. 2n = 42.

Phenology: Flowering year-round.
Habitat: Disturbed sites
Elevation: 0–100 m


V6 392-distribution-map.jpg

Introduced; Fla., Asia, Africa, Australia, introduced also in Mexico, West Indies (Cuba, Lesser Antilles, Puerto Rico), Central America, South America (Peru, Venezuela).


Abutilon hirtum has been found in Alachua, Lake, Miami-Dade, and Monroe counties, primarily in the Florida Keys. It is native in tropical parts of Africa, Asia, and Australia.

Selected References


Lower Taxa

... more about "Abutilon hirtum"
Paul A. Fryxell† +  and Steven R. Hill +
(Lamarck) Sweet +
Sida hirta +
Fla. +, Asia +, Africa +, Australia +, introduced also in Mexico +, West Indies (Cuba +, Lesser Antilles +, Puerto Rico) +, Central America +, South America (Peru +  and Venezuela). +
0–100 m +
Disturbed sites +
Flowering year-round. +
Hort. Brit., +
Introduced +
Abutilon hirtum +
Abutilon +
species +