Ancistrocarphus filagineus

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Ancistrocarphus filagineus occurs nearly throughout the Californian Floristic Province inland from the immediate coast; in the south, it stops at the western fringes of the Mojave and Sonoran deserts; farther north, it continues into the northern Great Basin and Columbia Plateau of Oregon, northern Nevada, and southwestern Idaho. The rigid whorl of inwardly-hooked staminate paleae holds tenaciously to clothing, skin, animal coats, even vehicle tires, providing an effective dispersal mechanism. It is surprising that it has not spread farther.