特徵描述
屬列表
Achyranthes 牛膝屬
Aerva 絹毛屬
Allmania 砂莧屬
Alternanthera 蓮子草屬
Amaranthus 莧屬
Celosia 青葙屬
Cyathula 川牛膝屬
Deeringia 漿果莧屬
Digera 瘤果莧屬
Gomphrena 千日紅屬
Philoxerus 安旱莧屬
Pupalia 鉤牛膝屬
標本列表
Alternanthera 蓮子草屬
型態特徵
Annual or perennial herbs; stems prostrate or erect. Leaves opposite. Flowers in axillary head-like spikes, subtended by 3 bracteoles; perianth segments 5; stamens 3–5, alternating with pseudo-staminodes, anthers 1-celled, filaments united into a cup at base; ovary with a short style, stigma 1, capitate. Fruit a utricle; seeds lenticular.
About 100 species in tropical and subtropical regions; four species naturalized in Taiwan.
