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perennial woodland native of North America having a red root and red sap and bearing a solitary lobed leaf and white flower in early spring and having acrid emetic properties; rootstock used as a stimulant and expectorant

1. : a perennial herb (Lachnanthes tinctoria) of the eastern United States having sword-shaped leaves, cymose woolly flowers, and a red root that is sometimes used as the source of a dye

2. : a plant of the genus Ceanothus; especially : new jersey tea

3. : bloodroot 1

4. : a gromwell (Lithospermum officinale)

5. : alkanet 1a

6. or redroot pigweed : pigweed a

7. : a West Indian and Central American shrub (Morinda roioc) with white flowers

8. : pinkroot

/red"rooht', -root'/, n.

1. a North American plant, Lachnanthes caroliniana (or L. tinctoria), having sword-shaped leaves, woolly, yellowish flowers, and a red root.

2. any of various other plants having red roots, as the alkanet, Alkanna tinctoria, pigweed, Amaranthus retroflexus, and New Jersey tea, Ceanothus americanus.

[1700-10, Amer.; RED¹ + ROOT¹]

redˈroot noun

A genus (Ceanothus) of the buckthorn family, New Jersey tea

Main Entry: ↑red