Abstract

Three Elymus (Poaceae) species: E. ciliaris, E. formosanus and E. tsukushiensis were confirmed and illustrated in this article. A distribution map of these three Elymus species was offered, too. In Taiwan, E. tsukushiensis were misapplied as E. ×mayebaranus (=Agropyron × mayebaranum), which is a rare sterile hybrid endemic to Japan. The information of two related species: E. ×mayebaranus and E. shandongensis were also described.

中文摘要

本文確認並描述台灣產三種披鹼草屬（Elymus）植物：纖毛披鹼草（E. ciliariｓ）、 台灣披鹼草（E. formosanus）與膜緣披鹼草（E. tsukushiensis），並提供它們的台灣分布圖 與線繪圖；以往台灣產膜緣披鹼草被誤認為日本特產的稀有不孕雜交種：前原披鹼草（E. × mayebaranus（= A. × mayebaranum）。另外提供鄰近地區產相關披鹼草屬植物：前原披鹼 草與山東披鹼草（E. shandongensis）的資訊。

Keyword: Agropyron × mayebaranum, Elymus, Poaceae, Taiwan.