Flora of North America species comparison

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Abutilon trisulcatum

anglestem Indian mallow
Habit Herbs, annual, sometimes perennial, or subshrubs, 1–2.5 m. Stems erect, prominently 3-sulcate when young, minutely puberulent, usually viscid (especially in inflorescence).
Leaves

stipules subulate, 2–4 mm;

petiole usually shorter than blade;

blade slightly discolorous, ovate, 6–11 cm, longer than wide, base cordate, margins crenulate-serrulate, apex acuminate, surfaces tomentulose, obscured by pubescence.
Inflorescences

terminal, open panicles.
Flowers

calyx 3–4 mm, lobes not overlapping, erect in fruit, lanceolate-ovate;

corolla sometimes reflexed, yellow, often with dark red center, petals 4–6 mm;

staminal column glabrous;

style 5-branched.
Seeds

3 per mericarp, 2 mm, minutely pubescent.
Schizocarps

subcylindric, usually medially constricted, 6–8 × 5–8 mm;

mericarps: apex apiculate, minutely puberulent.
2n

= 14.

Abutilon trisulcatum
Phenology Flowering winter–spring.
Habitat Dry shrublands, disturbed vegetation, roadsides
Elevation 0–300 m (0–1000 ft)
Distribution
from FNA
TX; Mexico; Central America; West Indies
[BONAP county map]
Discussion

Abutilon trisulcatum occurs from Texas to Nicaragua and in the West Indies. It is a common roadside weed in most of Mexico, and has been found in southern Texas in Cameron and Hidalgo counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 6, p. 227.
Parent taxa Malvaceae > subfam. Malvoideae > Abutilon
Sibling taxa
A. abutiloides, A. berlandieri, A. coahuilae, A. fruticosum, A. hirtum, A. hulseanum, A. hypoleucum, A. incanum, A. malacum, A. mollicomum, A. palmeri, A. parishii, A. parvulum, A. permolle, A. reventum, A. theophrasti, A. wrightii
Synonyms Sida trisulcata, A. nealleyi, A. ramosissimum, A. triquetrum
Name authority (Jacquin) Urban: Repert. Spec. Nov. Regni Veg. 16: 32. (1919)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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