e·del·weiss 
(ādəl-vīs′, -wīs′)
(ādəl-vīs′, -wīs′)n.
A European alpine plant (Leontopodium alpinum) in the composite family, having leaves covered with whitish down and small flower heads surrounded by conspicuous whitish bracts.
[German : edel, noble (from Middle High German edele, from Old High German edili) + weiss, white (from Middle High German wīz, from Old High German wīz, hwīz; see kweit- in the Appendix of Indo-European roots).]
edelweissLeontopodium alpinum