
• A coarse umbelliferous weed of the genus Heracleum (H. sphondylium in England, and H. lanatum in America).
Found on
http://thinkexist.com/dictionary/meaning/cow_parsnip/

broadly, any plant of the genus Heracleum, in the parsley family (Apiaceae). The genus comprises about 60 species, which are distributed throughout ...
Found on
http://www.britannica.com/eb/a-z/c/152
Cow' pars`nip (-n?p).
(Botany) A coarse umbelliferous weed of the genus
Heracleum (
H. sphondylium in England, and
H. lanatum in America).
Found on
http://www.encyclo.co.uk/webster/C/177

Cow-Parsnip or hogweed (Heracleum sphondylium) is a tall-growing umbelliferous plant with a hairy stem and large, roughly-serrated leaves. the umbels are compound, and the flat fruit is composed of two carpels, which, being neither beaked nor prickly, are united at their faces. The plant bears white flowers in late summer.
Found on
http://www.probertencyclopaedia.com/browse/BCA.HTM

[
n] - tall coarse plant having thick stems and cluster of white to purple flowers
Found on
http://www.webdictionary.co.uk/definition.php?query=cow%20parsnip
hogweed noun tall coarse plant having thick stems and cluster of white to purple flowers
Found on
https://www.encyclo.co.uk/local/20974

any of several tall, coarse plants of the genus Heracleum, of the parsley family, as H. sphondylium or H. lanatum, having large, flat clusters of white flowers.
Found on
https://www.infoplease.com/dictionary/cow-parsnip
No exact match found.