Hackelia (stickseeds) is a genus of plants in the borage family, Boraginaceae. It includes 54 species found in North America, western South America, temperate Eurasia, and Australia. 12 species are native to California.

The genus was named after Josef Hackel, a Czech botanist. The common name, stickseed, refers to the tendency of the barbed nutlets to stick to animal fur.

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