Dig deeper at SERNEC, a consortium of southeastern herbaria.
Learn more about Goldthread from the Vascular Plants of North Carolina.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Ranunculales
Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Coptis trifolia var. groenlandica
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Coptis trifolia ssp. groenlandica
Gray's Manual of Botany (Fernald, 1950)
Manual of the Southeastern Flora (Small, 1933)
Goldthread, Goldenroot, Threeleaf Goldthread
To see larger pictures, click or hover over the thumbnails.
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_cotr2_001_lvd
Neatly trifoliolate leaves, small white flowers on scapes, and yellow roots, per Weakley's Flora (2020).
Jeff Ausmus jma_coptri
May Roscommon County MI
Roscommon State Forest Area: Richfield Township
5-7 petal-like sepals surround a bushy cluster of white-tipped stamens & bright green styles, per Wildflowers of the Atlantic Southeast.
Jeff Ausmus jma_coptri_4
May Ogemaw County MI
Roscommon State Forest Area: Ogemaw Township
Short, golden-yellow, club-shaped petals with nectar-loaded tips alternate with the white sepals, per Wildflowers of the Atlantic Southeast.
Jeff Ausmus jma_coptri2
May Monroe County MI
Fruit is a candelabra-like array of tiny, stalked pods, each with a long-tapering tip, per Wildflowers of the Atlantic Southeast.
Jeff Ausmus jma_coptri5
September Monroe County MI
Leaves shiny, palmately divided into 3 toothed, smooth, oval or fan-shaped leaflets, per Wildflowers of the Atlantic Southeast.