Flora of the Southeastern United States
2022 Edition

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Key to Caulophyllum

Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

1 Carpels (in flower) 3.5-5 mm long, averaging 4 mm; styles (0.8-) 1.0-1.5 mm long; sepals 6-9 mm long, usually purple; terminal leaflets (5-) 7-9 (-10) cm long, (4-) 5-7.5 (-8) cm wide; main inflorescence with 4-18 flowers, the flowers opening before the leaves expand; first leaf 2-ternate or 3-ternate
1 Carpels (in flower) 1.3-2.8 mm long, averaging 2 mm; styles 0.1-0.7 (-1.0) mm long; sepals 3-6.5 mm long, yellow, yellow-purple, or green; terminal leaflets (3-) 5-7 (-8) cm long, (2-) 3.5-6.5 (-10) cm wide; main inflorescence with 5-70 flowers, the flowers opening as the leaves expand; first leaf 3-ternate or 4-ternate