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2. Saxifraga sect. Irregulares Haworth, Misc. Nat. 158. 1803.
石荷叶组 shi he ye zu
Description from Flora of China
Diptera Borkhausen.
Herbs perennial, forming erect individuals, lacking basal bulbils. Leaves alternate, all basal, petiolate; leaf blade herbaceous or leathery, lacking chalk glands, margin lobed; foliar crystals present mainly as druses. Flowering stem usually scapose; inflorescence cymose. Flowers bisexual, zygomorphic, 5-merous. Petals white or pink, not callose. Filaments clavate; pollen 2-nucleate, exine tectum smooth. Carpels connate at least proximally, dehiscing distally in fruit. Ovary superior. Integuments 2.
About ten species: China, Japan; seven species (four endemic) in China.
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