blackroot

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noun

genus Pterocaulon, such as Pterocaulon pycnostachyum (dense-spike blackroot) and Pterocaulon virgatum (wand blackroot)

Scrabble 17
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Meanings

nounblackroot (countable and uncountable, plural blackroots)

plural blackroots

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

Origin

From black + root.

Full word history & related roots →
Cite this entry
APA

blackroot. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/blackroot

MLA

“blackroot.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/blackroot. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “blackroot,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/blackroot.

Source: blackroot on Wiktionary, CC BY-SA 4.0.