Penny-cress

pennycress

[pen-ee-kres]
noun
any of several plants belonging to herbs of the genus Thlaspi, of the mustard family, especially T. arvense, of Europe, bearing somewhat round, flat pods.
Also, penny cress, penny-cress.


Origin:
1705–15; penny + cress

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World English Dictionary
pennycress (ˈpɛnɪˌkrɛs)
 
n
any of several plants of the genus Thlaspi of temperate Eurasia and North America, typically having small white or mauve flowers and rounded or heart-shaped leaves: family Brassicaceae (crucifers)

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