frostweed

[ frawst-weed, frost- ]

noun

1. a plant, Helianthemum canadense, of the rockrose family, native to eastern North America, having narrow leaves and a solitary yellow flower.

Word History and Origins

Origin of frostweed¹

1830–40, Americanism; frost + weed ¹; so called from the ice crystals which form on it during the first frosts