Hawkweed
Pronunciation : Hawk"weed`
Part of Speech : n.
Definition :
(Bot.) (a) A plant of the genus Hieracium; -- so called from the ancient belief that birds of prey used its juice to strengthen their vision. (b) A plant of the genus Senecio (S. hieracifolius). Loudon.
Source : Webster's Unabridged Dictionary, 1913