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FOC | Family List | FOC Vol. 12 | Malvaceae | Sida

8. Sida cordifolia Linnaeus, Sp. Pl. 2: 684. 1753.

心叶黄花稔 xin ye huang hua ren

Sida herbacea Cavanilles; S. holosericea Willdenow ex Sprengel; S. hongkongensis Gandoger; S. rotundifolia Lamarck ex Cavanilles.

Subshrubs erect, ca. 1 m tall. Branchlets, stipules, petioles, and leaves densely stellate strigose; branchlets and petioles velutinous, hairs ca. 3 mm. Stipule filiform, ca. 5 mm; petiole 1-2.5 cm; leaf blade ovate, 1.5-5 × 1-4 cm, abaxially velutinous on veins, base minutely cordate or rounded, margin crenate, apex obtuse to rounded. Flower solitary or fascicled, axillary or terminal. Pedicel 5-15 mm, densely stellate pilose and with long hairs, articulate in distal part. Calyx cup-shaped, lobes triangular, 5-6 mm, densely stellate pilose and with long hairs. Corolla yellow, ca. 1.5 cm in diam.; petals oblong, 6-8 mm. Filament tube ca. 6 mm, hirsute. Schizocarp 6-8 mm in diam.; mericarps 10, with vertical grooves, apex 2-awned, awn 3-4 mm, exceeding calyx, retrorsely barbed. Seeds long ovoid, apex hairy. Fl. year-round.

Scrub on slopes, grassy roadsides. Fujian, Guangdong, Guangxi, Hainan, Sichuan, Taiwan, Yunnan [Bhutan, India, Indonesia, Nepal, Pakistan, Philippines, Sri Lanka, Thailand; Africa, South America; ± pantropical].


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