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2. Tribulus Linnaeus, Sp. Pl. 1: 386. 1753.
蒺藜属 ji li shu
Herbs, annual or biennial, prostrate. Leaves opposite, pinnate. Flowers axillary, solitary. Sepals 5. Petals 5, yellow, imbricate. Disk ring-shaped. Stamens 10, with glands, outer 5 longer and opposite petals, inner 5 shorter and alternate with petals. Fruit a schizocarp of 4 or 5 indehiscent prickly carpels. Seeds obliquely pendulous; endosperm thinly membranous.
About 15 species: mainly in the temperate zone; two species in China.
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Annual herbs; flowers ca. 1 cm in diam.; pedicel shorter than leaves. |
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1 T. terrestris |
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Perennial herbs; flowers ca. 3 cm in diam.; pedicel equal to or longer than leaves. |
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2 T. cistoides |
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Lower Taxa
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