Wikipedia:

Coptis | Goldthread | Canker Root

Summary:

a genus of between 10–15 species of flowering plants in the family Ranunculaceae, native to Asia and North America. Coptis aspleniifolia | Coptis chinensis | Coptis deltoidea | Coptis groenlandica | Coptis japonica - Huang lian in Chinese (Chinese: ...  (36 of 315 words, 2 images)

Link:

http://en.wikipedia.org/wiki/Coptis  [cite]

Britannica:

Ranunculaceae

Summary:

the buttercup family, comprising about 2,252 species in 62 genera of flowering plants, mostly herbs, which are widely distributed in all temperate and ...  (23 of 102 words)

Link:

http://www.britannica.com/EBchecked/topic/491299/Ranunculaceae  [cite]

Random House:

buttercup family

Summary:

the plant family Ranunculaceae, typified by mostly herbaceous plants having usually alternate leaves, multistaminate flowers sometimes lacking petals ...  (18 of 34 words)

Link:

http://dictionary.infoplease.com/buttercup-family  [cite]

Wiktionary:

Ranunculaceae

Summary:

[botany] A taxonomic family, within order Ranunculales — many flowering plants.  (10 of 13 words)

Link:

http://en.wiktionary.org/wiki/Ranunculaceae  [cite]