Dictionary

blackroot en · NOUN

Etymology

From black + root.

Meanings

1. (countable, uncountable) Several North American plants with black roots of: ▸ genus Pterocaulon, such as Pterocaulon pycnostachyum (dense-spike blackroot) and Pterocaulon virgatum (wand blackroot)
2. (countable, uncountable) Several North American plants with black roots of: ▸ species Veronicastrum virginicum (Culver's root)
3. (countable, uncountable) Several North American plants with black roots of: ▸ species Aletris farinosa (colicroot)
4. (countable, uncountable) Several plant diseases caused by fungi in the genus Aphanomyces causing that cause roots to rot and turn black.

Forms