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Is the bur of a cocklebur really a fruit?

This may seem like a simple enough question. Of course, a cocklebur is a fruit, right? Well, it's a bit more complicated than that.


Image source: https://www.inaturalist.org/observations/2497162

The common cocklebur (Xanthium strumarium) has prickly round egg-shaped structures (sometimes referred to as porcupine eggs). Each of these prickles has hooks on the end allowing them to stick to clothing and hair like velcro.


Image source: https://www.inaturalist.org/observations/30782793

Most people will see prickly structures and assume they are the ...más ↓

Publicado el agosto 14, 2019 06:00 MAÑANA por nathantaylor nathantaylor | 13 comentarios | Deja un comentario
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Flowers get all the publicity, but the intent of the flower is to create the seed. Here we turn our attention to seeds and the business of making them -- seeds, fruits, and associated parts of seed-bearing plants are fair game. See the Terms And Rules for more detail about the scope of the project.
Flowers and other plant features are useful for plant recognition and identification, and ...más ↓

ellen5 creó este proyecto el 27 de agosto de 2016
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