Hackelia nervosa
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Hackelia nervosa is a species of flowering plant in the borage family known by the common name Sierra stickseed. It is native to the mountains of California, especially the Sierra Nevada and its foothills,[1] in areas with some moisture up to near treeline. Its range may extend into Nevada.
Sierra stickseed is a perennial herb starting from basal patches of oblong leaves each up to Script error: No such module "convert". long. Erect stems rise to heights between Script error: No such module "convert"., with gradually fewer and smaller leaves toward the tops. The stems hold cyme inflorescences of deep sky blue to violet flowers; the buds are often pink. Each petite flower has five oblong rounded-end lobes, with a slightly raised appendage at the base of each forming a white ring around the yellow anthers. The flowerheads start off quite compact, but later the stems and petioles elongate to give a more open appearance. The fruit (the "stickseed") is a nutlet about half a centimeter long, covered with barb-tipped prickles that stick to almost anything, explaining the common name of this genus.
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Sierra stickseed inflorescaece close
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Later, open inflorescences
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Sierra stickseed, prickly fruits
References
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