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Cruciferae

十字花科

APG 4
Flora of Taiwan
特徵描述
屬列表
Arabis 筷子芥屬
Barbarea 山芥屬
Brassica 蕓苔屬
Capsella 薺屬
Cardamine 碎米薺屬
Cochlearia 西洋山葵屬
Coronopus 濱芥屬
Draba 山薺屬
Eutrema 山葵屬
Lepidium 獨行菜屬
Nasturtium 豆瓣菜屬
Neslia 球果薺屬
Raphanus 萊菔屬
Rapistrum 皺果薺屬
Rorippa 葶藶屬
Sisymbrium 抪娘蒿屬
Thlaspi 菥蓂屬
Wasabia 山葵屬
標本列表

特徵描述

作者

YING, SHAO-SHUN

型態特徵

Annual or perennial herbs, rarely small subshrubs, inermous, terrestrial or aquatic, usually with watery juice. Leaves radical or cauline, spirally arranged, rarely subopposite, simple to pinnately lobed; stipules absent or reduced to fine bristles or glands. Flowers usually hermaphroditic, hypogynous, in terminal or axillary racemes, sometimes solitary or several-clustered; sepals 4, free, imbricate, decussate in 2 series, rarely valvate; petals 4, free, usually clawed, alternating with the sepals; stamens mostly 6, 4-dynamous in 2 rows (the outer two stamens shortest) or 2-dynamous or 1–5 by reduction, or more than 6 by division (up to 16), filaments usually free, sometimes winged or dentate, anthers mostly sagittate, 1–2-celled, longitudinally dehiscent, nectaries variously arrayed around base of stamens; ovary syncarpous, of 2 carpels, usually bilocularly divided by a false septum (replum), style usually persistent, simple, stigma discoid, sometimes bifid. Fruit a capsule, dehiscing from below by two valves (a silique when more than 3 times as long as wide; a silicle when less than 3 times as long as wide), rarely lomentoid or indehiscent. Seeds 1-numerous, mostly exalate; embryo large; endosperm scanty or absent; cotyledons large, incumbent, accumbent or conduplicate.

Genera up to 300, with more than 2,500 species of world-wide distribution, but mostly in temperate regions. Twelve genera with 22 species, one variety and one form in Taiwan.

參考文獻

作者

型態特徵

參考文獻

種列表

標本列表

學名 中名 標本數