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FOC | Family List | FOC Vol. 18 | Scrophulariaceae

46. Striga Loureiro, Fl. Cochinch. 1: 22. 1790.

独脚金属 du jiao jin shu

Herbs, parasitic. Leaves opposite below, alternate above, narrow, sometimes reduced to scales. Flowers solitary in leaf axils or in spikes, usually with a pair of bracteoles. Calyx tubular, conspicuously 5-15-ribbed, 5-lobed. Corolla salverform; tube curved in middle or apically; limb patent, weakly 2-lipped; lower lip 3-lobed; upper lip shorter than lower, entire, emarginate to 2-lobed. Stamens 4, didynamous; anthers 1-loculed, base spurless, apex pointed. Stigma clavate. Capsule loculicidal. Seeds numerous, ovoid to oblong; seed coat reticulate.

About 20 species: Africa, tropical and subtropical Asia, Oceania; four species in China.

1 Calyx 15-ribbed, 0.9-1.5 cm.   (2)
+ Calyx 5- or 10-ribbed, less than 0.8 cm.   (3)
2 (1) Calyx lobes ca. 2 X as long as tube; corolla tube to 1.2 cm   2 Striga masuria
+ Calyx lobes almost as long as tube; corolla tube ca. 2 cm   3 Striga angustifolia
3 (1) Calyx 10-ribbed; corolla tube curved near apex, limb bright yellow, rarely white or red   1 Striga asiatica
+ Calyx 5-ribbed; corolla tube curved above middle, limb white or pale pink   4 Striga densiflora

Lower Taxa


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