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FOC | Family List | FOC Vol. 8 | Droseraceae | Drosera

5. Drosera rotundifolia Linnaeus, Sp. Pl. 1: 281. 1753.

圆叶茅膏菜 yuan ye mao gao cai

Drosera rotundifolia var. furcata Y. Z. Ruan.

Herbs perennial, with few fibrous roots. Stem unbranched, short, sometimes to 5 cm when growing in Sphagnum moss, forming a bulb at shoot tip during winter, not forming a tuber below ground. Leaves basal, dense, long petiolate; stipule 5-7-fid, 6-8 mm, scarious, closely adnate to petiole at base; petiole flat, 1-7 cm; leaf blades yellowish green or green to red, orbicular, suborbicular, or weakly reniform, 3-10 mm × 0.5-2 cm, with red, long capitate, sticky, glandular hairs. Inflorescences erect, scapiform, slender, 8.5-30 cm, glabrous; cincinni 1 or 2, 3-30-flowered; bracts subulate to linear, small; pedicels 1-3 mm. Sepals 5, united near base, green, ovate to oblong, ca. 4 × 1.5 mm, glandular, margin serrate. Petals white or tinged with pink, spatulate, 5-6 × ca. 3 mm. Stamens 5, 4-5 mm. Ovary ellipsoid-globose, ca. 3 mm; placentas 3; styles 3 or 4, deeply parted to base or entire, clavate; stigma simple. Capsule 3- or 4-valved. Seeds ellipsoid-globose; testa pouch-shaped, extended at each end. 2n = 20.

Forest understories, wet meadows, bogs, high moors, wet sunny open areas; sea level to 1500 m. Fujian, Guangdong, Heilongjiang, Hunan, Jiangxi, Jilin, Zhejiang [Asia, C and N Europe, North America].


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