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FNA | Family List | FNA Vol. 6 | Malvaceae | Pseudabutilon

2. Pseudabutilon umbellatum (Linnaeus) Fryxell, Contr. Univ. Michigan Herb. 21: 190. 1997.

Sida umbellata Linnaeus, Syst. Nat. ed. 10, 2: 1145. 1759; Abutilon umbellatum (Linnaeus) Sweet

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.

Flowering year-round. Dry shrublands, roadside ditches, fencerows; 300–800 m; 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.


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