Edelweiss n. : A little, perennial, white, woolly plant (Leontopodium alpinum), growing at high elevations in the Alps.

Example:
How do I propagate Edelweiss from seeds in zone 9?

Taxonomy
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Defination from the web:
edelweiss, a white flower found high in the Alpine hills. ... and Crouse script provides a metaphor of the edelweiss flower, as a symbol of the Austria that ... An "edelweiss" is also worn as a cap device by certain Austrian Army and all German mountain units. ...