特徵描述
作者
LIU, Ho-Yih
型態特徵
Herbs or shrubs, rarely trees or vines; some species hemiparasitic or parasitic. Leaves opposite or alternate, rarely whorled; exstipulate. Flowers in racemes, spikes, or thyrsoid panicles or solitary; perfect, usually irregular. Calyx lobes 5 or 4, rarely 1 or 2 by fusion. Corolla sympetalous, 4 or 5-lobed, often 2-lipped. Stamens epipetalous, usually 4 and didynamous, or 4 fertile and 1 sterile, rarely 2 or 5; anthers 1 or 2-celled, cells distinct or more or less confluent. Disc annular or cup-shaped. Ovary superior, 2-celled; style simple or sometimes forked; stigma capitate, dilated, or 2-lobed. Fruit a capsule, rarely baccate. Seeds small, hilum lateral or ventral.
屬
About 220 genera, worldwide; 25 genera in Taiwan.
參考文獻
Striga 獨腳金屬
作者
LIU, Ho-Yih
型態特徵
Hemiparasitic annual herbs, drying often black or dark brown; stem erect or ascending, simple or branched, setulose on all green parts. Leaves sessile, lower ones opposite or 3-verticillate, upper ones alternate, entire or dentate. Flowers in a terminal leafy spikes or rarely solitary; calyx tubular, 5–15-ribbed, 4–5-lobed, 2-bracteolate; corolla white, pink, purple, blue, yellow or red, tubular, bilabiate, upper lip inner in bud, emarginate or 2-lobed, lower lip trifid; stamens 4, didynamous, include; anthers free, 1-celled; style simple, stigma capitate. Capsule completely enclosed by persistent calyx, loculicidally dehiscent, valves 2, entire. Testa of seeds striate.
