'Senecio hieracifolius' definitions:
Definition of 'Senecio hieracifolius'
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Hawkweed \Hawk"weed`\ (-w[=e]d`), n. (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 (Senecio hieracifolius).
--Loudon.
[1913 Webster]
