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FOC | Family List | FOC Vol. 13 | Elatinaceae

1. Bergia Linnaeus, Mant. Pl. 2: 152, 241. 1771.

田繁缕属 tian fan lü shu

Herbs annual, perennial, or subshrubs, erect or prostrate, richly branched. Leaves opposite, petiolate; leaf blade margin serrulate. Flowers numerous, arranged in axillary cymes or clustered in leaf-axils, rarely solitary, very small. Sepals 5, free, leathery, with conspicuous midrib, margin membranous, apex long acuminate. Petals 5, free, membranous. Stamens 5-10. Ovary ovoid-globose or subglobose, 5-loculed, many-ovuled, apex subacute; styles short; stigmas capitate. Capsule sub-bony, 5-septicidal. Seeds oblong, slightly curved, reticulate with elliptic pits.

About 25 species: tropical and warm-temperate regions; three species in China.

1 Plants glabrous; stem thick and juicy; flowers numerous in axillary cymes.   1 B. capensis
+ Plants glandular hairy and puberulous; stem neither thick nor juicy; flowers clustered in leaf axils   (2)
2 (1) Herbs annual; flowers numerous per leaf axil, pedicel 1-2 mm; stamens 5.   2 B. ammannioides
+ Herbs perennial or subshrubs; flowers 4 or 5 per leaf axil, pedicel 3-8 mm; stamens (5-)10.   3 B. serrata

Lower Taxa


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