Aaron's-beard, name sometimes applied to several plants usually characterized by some beardlike aspect, as the St.-John's-wort because of its many stamens and the Kenilworth ivy because of its threadlike runners. Aaron's-beard cactus is Opuntia leucotricha, a true cactus.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
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