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单词 Pulvini
释义

Pulvini

英语百科

Pulvinus

(重定向自Pulvini)
Section through the pulvinus of Oxalis rosea, from: Charles Darwin (1880): The Power of Movement in Plants.

A pulvinus (pl. pulvini) is a joint-like thickening at the base of a plant leaf or leaflet that facilitates growth-independent (nyctinastic and thigmonastic) movement. Pulvini are common in members of the bean family Fabaceae (Leguminosae) and the prayer plant family Marantaceae.

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更新时间:2025/6/19 11:29:05