找植物
找標本
電子書

Helwingiaceae

青莢葉科

Flora of Taiwan
特徵描述
屬列表
標本列表

特徵描述

Helwingia 青莢葉屬

作者

LI, HUI-LIN and YANG, KUOH-CHENG

型態特徵

Glabrous undershrubs. Leaves petioled, simple, lanceolate or ovate-lanceolate, bristle-serrate; stipule a tuft of linear bristles seen only at the base of the young petioles. Flowers unisexual, very small, in sessile umbels at the middle of the abaxial surface of the leaf or phyllode; pistillate flowers 1–4-flowered; staminate flowers with more flowers; calyx truncate; petals 3–4, valvate; stamens 3–5; ovary 3–4-celled, the style 3–4, combined at the base, arising from a conical disc. Fruit ovoid or ellipsoid, usually 2–3-celled; carpels rounded on the back; seeds compressed; endosperm uniform.

參考文獻

標本列表