Stems 2-7 dm. Leaves: 1st leaf (2-)3-ternate; 2d leaf (1-)2-ternate; leaflets 5-10 × 3-8 cm. Inflorescences with 4-18 flowers. Flowers: bracteoles 2-4 mm; sepals purple, red, brown, yellow, 6-9 × 1-4 mm, laterally revolute; petals 2-3 mm; stamen filaments 1.5-2.5 mm; pistil 3-5 mm; style 1-2 mm. 2n = 16.

Phenology: Flowering early spring.
Habitat: Mesophytic forests
Elevation: 0-700 m

Distribution

• Generated Map
• Legacy Map

Ont., Que., Ky., Md., Mass., Mich., N.H., N.Y., N.C., Ohio, Pa., Tenn., Vt., Va., W.Va.

Discussion

Caulophyllum giganteum has a relatively northern distribution, and it flowers precociously; C. thalictroides has a broader distribution, extending farther south, flowers and fruits later, and is less precocious. Caulophyllum giganteum is treated as part of C. thalictroides by most authors.

Selected References

None.

Lower Taxa

None.