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9. Zygophyllaceae

蒺藜科 ji li ke

Authors: Yingxin Liu & Lihua Zhou

Tribulus terrestris

Credit: Harvard University Herbaria

Shrubs, shrublets, or perennial herbs, rarely annuals. Stipules distinct or connate, often persistent. Leaves opposite or sometimes alternate, simple or pinnate, often fleshy. Inflorescences axillary or terminal, solitary, racemose, or cymose. Flower bisexual, actinomorphic or zygomorphic. Sepals 4 or 5, imbricate or valvate. Petals 4 or 5, imbricate or valvate. Stamens 4 or 5 or up to 3 × as many as petals, with or without appendages. Ovary usually (2 or)3-5(-12)-locular. Fruit a drupe, capsule, or schizocarp, leathery or fragile.

Twenty-six genera and ca. 284 species: temperate, tropical, and subtropical areas of Africa, America, Asia, Australia, and Europe; three genera (one endemic) and 22 species (three endemic) in China.

Liou Yingxin. 1998. Zygophyllaceae (excluding Nitraria and Peganum). In: Xu Langran & Huang Chengchiu, eds., Fl. Reipubl. Popularis Sin. 43(1): 116-145.

1 Fruit a capsule.   1 Zygophyllum
+ Fruit a schizocarp   (2)
2 (1) Schizocarp with 5 carpels; sepals and petals 5; stamens 5, base with glands.   2 Tribulus
+ Schizocarp with 4 carpels; sepals and petals 4; stamens 8, base with membranous appendages.   3 Tetraena

Lower Taxa


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