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Polygonaceae

蓼科

APG 4
Flora of Taiwan
特徵描述
屬列表
Antigonon 珊瑚藤屬
Fagopyrum 蕎麥屬
Persicaria 春蓼屬
Polygonum 蓼屬
Rumex 酸模屬
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特徵描述

作者

LIU, HO-YIH

型態特徵

Annual or perennial herbs, shrubs, trees or climbing lianas; stems often swollen at the nodes. Leaves mostly alternate; stipules often connate into a tubular sheath called an ocrea. Flowers hermaphroditic or unisexual, regular, pedicellate, articulate to the pedicel, often with stipitate base above the articulation; perianth segments (2-)5- or 6-merous, in two whorls, basally connate into a floral tube, persistent and often enlarged in fruit. Stamens usually 6–9, perigynous, in 2 whorls. Carpels mostly 3; ovary superior, unilocular; styles 1–4; ovule single, basal or free-central. Fruit an achene or a small nut, often subtended by the accrescent perianth.

About 30 to 43 genera with more than 1,100 species worldwide. Three genera, with 45 species and varieties in Taiwan. Several genera, including Antigonon, Coccoloba, Fagopyrum, Muehlenbeckia, and Rheum, are in cultivation.

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