四種臺灣外來植物補註

Notes on Four Alien Plants in Taiwan

本文報導四種於中南部山區發現之外來植物：小葉藎草（Arthraxon lancifolius（Trin.） Hochst.）、雜種野芝麻（Lamium hybridum Vill.）、同花母菊（Matricaria matricarioides(Less.) Porter），以及凹果菥蓂（Thlaspi arvense L.）。其中菥蓂屬（Thlaspi L.）為臺灣新紀錄屬。文中並提供描述、線繪圖及照片以供鑑定。

Arthraxon lancifolius (Trin.) Hochst., Lamium hybridum Vill., Matricaria matricarioides (Less.) Porter, and Thlaspi arvense L. were found recently in the mountains of central and southern Taiwan. Thlaspi is a new alien genus in the Taiwan flora. Descriptions, illustrations, and photos of these four alien plants are provided for identification.