作者

YANG, KUOH-CHENG and HUANG, TSENG-CHIENG

型態特徵

Dioecious shrubs to trees. Leaves deciduous, simple, usually alternate, with deciduous stipules. Aments ascending or pendulous, developing before or with the leaves in early spring, solitary. Flowers simple, lacking a perianth, each subtended by a bract. Gland as protuberant nectary or cup-shaped disc. Stamens 2-30, free or connate. Ovary superior, bicarpellate, unilocular, stipitate or sessile; style present or absent; stigmas 2, entire or bifid, placentae parietal or basal. Capsules bivalvate. Seeds small; endosperm absent; embryo straight.

屬

Three genera, chiefly north temperate regions; one native to Taiwan.

參考文獻

• YANG, KUOH-CHENG and HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 2: 29. 1996.  (Fl. Taiwan 2nd edit.)