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IBSC | Family List | Angiospermae | Commelinaceae

15. Callisia Loefling, Iter Hispan. 305. 1758.

洋竹草属 yang zhu cao shu

Description from Flora of China

Herbs perennial. Rhizomes absent. Stems creeping or decumbent proximally. Leaves distichous or spirally arranged. Cincinni terminal and/or axillary, paired or aggregated, less often solitary; involucral bracts not spathelike; pedicels very short. Flowers actinomorphic. Sepals 2 or 3, free. Petals 2 or 3, free, lanceolate. Stamens (1--3 or)6, all fertile, very rarely 1 or more becoming staminodes, subequal; filaments usually glabrous; anther locules rounded, longitudinally dehiscent, connectives broad and square, triangular, or oblong, rarely narrow. Ovary oblong, subtrigonous, 2- or 3-loculed; ovules 2 per locule. Capsule 2- or 3-valved. Seeds (1 or)2 or 3 per valve, shortly cylindric, trigonous, rugose or radiate striate; hilum orbicular, minute.

About 20 species: America; one species (introduced) in China.


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