特徵描述
屬列表
Aphananthe 糙葉樹屬
Celtis 朴屬
Trema 山黃麻屬
Ulmus 榆屬
Zelkova 櫸屬
標本列表
Zelkova 櫸屬
型態特徵
Deciduous trees or shrubs. Leaves alternate, crenate to serrate, penninerved; stipules free. Inflorescences on young branches; staminate flowers 2-5-clustered in axils of lower leaves; calyx broadly campanulate, 4 or 5-lobed; stamens 4 or 5. Bisexual flowers solitary or few in axils of upper leaves; calyx 4 or 5-lobed; stamens 4 or 5; ovary sessile; ovules pendulous. Drupe dry, oblique, subglobose to carinate; seeds without endosperm, cotyledons broad.
Five species in Caucasus and E. Asia, one in Taiwan.
