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

6. Drosera peltata Smith ex Willdenow, Sp. Pl. Editio quarta. 1(2): 1546. 1797 [1798]. nom. illeg. hom.

茅膏菜 mao gao cai

Drosera lobbiana Turczaninow; D. lunata Buchanan-Hamilton ex de Candolle; D. peltata var. glabrata Y. Z. Ruan; D. peltata var. lunata (Buchanan-Hamilton ex de Candolle) C. Clarke; D. peltata var. multisepala Y. Z. Ruan.

Herbs perennial, forming aerial portion only for a few months during early summer. Stem erect or climbing, branched distally, 9-32 cm, forming a tuber to 8 mm in diam. below ground, glabrous or with black, papillose glands. Basal leaves densely whorled, or absent in some populations, exstipulate, yellowish green to green; petiole 2-8 mm; leaf blade peltate, orbicular to suborbicular, 2-4 × 6-8 mm; some leaves reduced, linear, ca. 2 mm. Cauline leaves alternate, remote, exstipulate, yellowish green; petiole 0.8-1.3 cm; leaf blade peltate or lunate to semiorbicular, 2-3 × 4-5 mm, margin glandular hairy. Inflorescence terminal; cincinnus 2-6 cm, 3-22-flowered; bracts cuneate to oblanceolate or subulate; pedicels 0.6-2 cm. Sepals 5-7, united near base, yellowish green, lanceolate to ovate, 2-4 mm × ca. 1.5 mm, glabrous to glandular hairy, apex 5-7-fid. Petals usually white, rarely pink or red, oblong-cuneate, 4-6 × 2-3 mm. Stamens 5, 2-4 mm. Ovary subglobose, ca. 1.5 mm in diam.; placentas 3; styles 3, 2-5-parted, ca. 0.8 mm; stigma 2- or 3-fid. Capsule subglobose, (2 or)3(-5)-valved, 2-4 mm. Seeds ellipsoid-ovoid to globose, ca. 0.4 mm; venation scrobiculate. Fl. and fr. Jun-Sep. 2n = 32, 40.

Sparse Pinus forests, scrub, meadows, streamsides, sunny open places, roadsides; sea level to 3700 m. Anhui, Gansu, Guangdong, Guangxi, W Guizhou, Hubei, Hunan, Jiangxi, SW Sichuan, Taiwan, S Xizang, Yunnan, Zhejiang [E and SE Asia; Australia].

The characters of this species are highly variable.


 

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