Sida spinosa L. (Malvaceae), a Newly Naturalized Plant in Taiwan

台灣新歸化錦葵科植物－－刺金午時花

Sida spinosa L. is native to Tropical America, now naturalized to central and southern Taiwan. A taxonomic treatment, line drawing, and color photographs of this species from wild are provided to aid in identification. The morphology of S. spinosa L. is very similar to S. acuta Burman f., and is distinguished from features of stems, leaves and mericarps. 刺金午時花（Sida spinosa L.）原產於熱帶美洲，目前已歸化於台灣中、南部，本文描述其形態特徵、地理分佈及生育地環境，並提供彩色圖片與線畫圖以資辨識，另外再作表與其相似種細葉金午時花（S. acuta Burman f.）在外觀形態特徵之比較。

刺金午時花（Sida spinosa L.）原產於熱帶美洲，目前已歸化於台灣中、南部，本文描述其形態特徵、地理分佈及生育地環境，並提供彩色圖片與線畫圖以資辨識，另外再作表與其相似種細葉金午時花（S. acuta Burman f.）在外觀形態特徵之比較。