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3. Caldesia Parlatore, Fl. Ital. 3: 598. 1860.
泽薹草属 ze tai cao shu
Herbs, aquatic, perennial, rhizomatous. Leaves all basal, aerial, floating, or submerged, ovate to elliptic; floating leaves deep green, large; aerial leaves subleathery, with erect petiole; submerged leaves usually smaller. Inflorescences paniculate or racemose, much branched; branches whorled, each whorl with 3-6 branches; bracts lanceolate. Flowers pedicellate, verticillate, bisexual. Petals usually larger than sepals. Stamens 6-12. Carpels few to numerous in a single whorl, free, each with 1 ovule. Fruitlets drupaceous, with woody endocarp and spongy exocarp, swollen or slightly compressed, with a short beak.
About three species: Africa, Asia, Australia, Europe; two species in China.
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Leaves longer than broad, apex obtuse, not ribbed, base deeply cordate; stamens 6. |
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1 C. parnassifolia |
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Leaves shorter than broad, apex notched, ribbed, base not cordate; stamens 9-12. |
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2 C. grandis |
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Lower Taxa
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