Japanese edit

For pronunciation and definitions of つめくさ – see the following entry.
詰草
[noun] [from 1884] clover: short for 白詰草 (shiro tsumekusa, white clover), or short for 赤詰草 (aka tsumekusa, red clover (Trifolium pratense))
Alternative spelling
ツメクサ
(This term, つめくさ, is the hiragana spelling of the above term.)