Epithets

xylorhiza

woody root

xylorrhiza

woody root

yakushimanum

of or from Yakushima, an island in southern Japan

yezoalpina

from (the mountains of) Hokkaido

yezoensis

from (the mountains of) Hokkaido

yuccifolium

having Yucca-like leaves

yunnanense

of or from Yunnan, China

zaleucus

very white

zebrina

striped like a zebra

zonalis

banded or girdled with a distinct color