These are called achenes, and each achene is an individual fruit containing a single seed. From Wordnik.com. [Archive 2006-03-01] Reference
Both species have abundant seed-set and some very effective means for dispersal through achene adhesion to cloth, animal fur or wool Fig. From Wordnik.com. [The Volokh Conspiracy » “Two New Alien Species of Bidens Have Been Recorded in Bulgaria”] Reference
Both species have abundant seed-set and some very effective means for dispersal through achene adhesion to cloth, animal fur or wool (Fig. 4). —. From Wordnik.com. [The Volokh Conspiracy » “Two New Alien Species of Bidens Have Been Recorded in Bulgaria”] Reference
Fruit: A small achene tipped with long feathery white bristles. From Wordnik.com. [Find Me A Cure] Reference
Fruit is red to brown achene with soft white hairs that helps in wind dispersal. From Wordnik.com. [Find Me A Cure] Reference
Fruit a trigonous, biconvex, or biconcave achene; seed with straight or curved embryo and copious endosperm. From Wordnik.com. [Find Me A Cure] Reference
This structure allows dispersal of the achene, a single seed produced by each female flower, to other sites by clasping to the hairs, or feathers, of any animal (or hairy tramper) passing by. From Wordnik.com. [Museum Blogs] Reference
The nut - achene is drug free protein. From Wordnik.com. [AlterNet.org Main RSS Feed] Reference
Seed (achene) of a native hook sedge. From Wordnik.com. [Museum Blogs] Reference
Applied to plants used in salads. achene. From Wordnik.com. [xml's Blinklist.com] Reference
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