Pseudabutilon umbellatum

(Linnaeus) Fryxell

Contr. Univ. Michigan Herb. 21: 190. 1997.

Basionym: Sida umbellata Linnaeus Syst. Nat. ed. 10, 2: 1145. 1759
Synonyms: Abutilon umbellatum (Linnaeus) Sweet
Treatment appears in FNA Volume 6. Treatment on page 309. Mentioned on page 216, 308.

Shrubs, erect, 1–2 m, sometimes branching in inflorescence. Stems densely stellate-hairy, hairs tufted, sometimes also with few appressed, simple hairs. Leaves: stipules linear to lanceolate, to 10 × 1 mm, stellate-hairy; petiole 1/2–1 times blade length, stellate-hairy; blade broadly ovate, sometimes shallowly 3-lobed apically, to 12 × 6 cm, gradually reduced and narrower upward, apex acute or acuminate, surfaces with bifurcate hairs abaxially, stellate-hairy adaxially. Inflorescences 2–5-flowered umbels, sometimes appearing compound terminally; peduncle 1–5 cm, stellate-hairy. Pedicels 1–2 cm, stellate-hairy. Flowers: calyx 6–8 mm, lobes triangular, apex acute, stellate-hairy and sometimes hirsute with simple hairs; petals 6–8 mm, glabrous; staminal column 3–4 mm, setose and stellate-hairy; styles 6–8-branched. Schizocarps grayish brown at maturity, 5–9 mm diam., stellate-hairy; mericarps 6–8, spur 2–4 mm. Seeds 2–3 mm. 2n = 30.

Phenology: Flowering year-round.
Habitat: Dry shrublands, roadside ditches, fencerows
Elevation: 300–800 m


V6 562-distribution-map.jpg

Tex., Mexico, West Indies, Central America, South America.


In the flora area, Pseudabutilon umbellatum is known only from the lower Rio Grande of southern Texas.

Selected References


Lower Taxa

... more about "Pseudabutilon umbellatum"
Brian R. Keener +
(Linnaeus) Fryxell +
Sida umbellata +
Tex. +, Mexico +, West Indies +, Central America +  and South America. +
300–800 m +
Dry shrublands, roadside ditches, fencerows +
Flowering year-round. +
Contr. Univ. Michigan Herb. +
Abutilon umbellatum +
Pseudabutilon umbellatum +
Pseudabutilon +
species +