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Webster 1913 Edition

Noun.

A bitter American herb of the Bloodwort family, with the leaves all radical, and the small yellow or white flowers in a long spike (

Aletris farinosa

and

Aletris aurea

). Called sometimes

star grass

blackroot

blazing star

, and

unicorn root

colicroot ‎(plural colicroots)

A bitter American herb of the bloodwort family (Haemodoraceae), with small yellow or white flowers in a long spike.
Any of several other plants with bitter roots.
1. Aletris spp.
2. Apocynum androsaemifolium
3. Asarum canadense
4. Asclepias tuberosa
5. Dioscorea villosa
6. Liatris squarrosa