
Rhinanthus (Rattle) is a genus of annual hemiparasitic herbs in the family Orobanchaceae, formerly classified in the family Scrophulariaceae. The genus consists of about 30-40 species found in Europe, northern Asia, and North America, with the greatest species diversity (28 species) in Europe. ...
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http://en.wikipedia.org/wiki/Rhinanthus

Rhinanthus is a genus of plants belonging to the family Schrophulariaceae. They bear flowers with an inflated four-toothed calyx, a gaping corolla, with the lower lip three-lobed, and a flattened capsule.
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http://www.probertencyclopaedia.com/browse/BR.HTM
No exact match found.