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Published In: Species Plantarum 2: 1052. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 9/27/2011)
Acceptance : Accepted
Project data     (Last Modified On 8/26/2015)
Area distribution:

About 10 species, mainly in temperate regions.


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Annual or perennial herbs, without stinging hairs. Leaves alternate, petiolate,simple and entire; stipules mostly 0. Inflorescences small, axillary, cymose, clustered. Flowers hermaphrodite and unisexual in the same cluster (plants polygamous), bracteolate, green. Perianth of hermaphrodite and staminate flowers of 4 segments, elongating after flowering, that of pistillate flowers tubular, 4-toothed, not elongating. Stamens 4; filaments free, inserted at base of tepals, inflexed in bud, straightening elastically at flowering. Ovary 1-celled, ovoid or oblong; stigma sessile or borne on a very short style, tufted. Achenes more or less ovoid, enclosed in the persistent perianth.



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