39 



36a. Segments of the leaf broadly wedge-shape or ovate; flowers 



white (48 dm. high) 37. 

 36b. Segments of the leaf linear-oblong; flower red, greenish, or 



white; plants growing on the shores of the Great Lakes 



Anemone, Anemone multifida. 



37a. Segments of the basal leaves wedge-lanceolate; head of fruit 

 cylindric Anemone, Anemone cylindrica. 



37b. Segments of the basal leaves ovate-lanceolate; head of fruit ovoid 

 or oblong Anemone, Anemone yirginiana. 



38a. Stem-leaves present 9b. 



38b. Leaves all basal (1 2 dm. high; leaves 3-divided; flowers 

 white, in early summer) Gold-thread, Coptis trifolia. 



39a. Flowers numerous, in branching panicles (Meadow Rue) 40. 



39b. Flowers numerous, in racemes 43. 



39c. Flowers solitary or few, in loose clusters; woodland plants 

 blooming in early spring (1 3 dm. high; flowers white to pur- 

 ple) 45. 



40a. Blooming in spring; stem-leaves with obvious petioles 

 (3 7 dm. high; flowers white or greenish) 



Meadow Hue, Thalictrum dioicum. 



40b. Blooming in late spring or summer, stem-leaves sessile, or 

 nearly so (8 15 dm. high; flowers white) 41. 



41a. Filaments club-shape, approximately as wide as the anther 



Meadow Rue ; Thalictrum polygamum. 



41b. Filaments slender or thread-like 42. 



42a. Leaves minutely pubescent beneath, but not glandular 



Meadow Eue, Thalictrum dasycarpiim. 

 42b. Leaves minutely glandular beneath 



Meadow Rue, Thalictrum revolutum. 



43a. Racemes slender, 10 99 cm .long (8 15 dm. high; flowers white, 

 in summer) Bugbane, Cimicifnga racemosa. 



43b. Racemes short and stout, 3 8 cm. long (4 8 dm. high; flowers 

 white, in late spring) (Baneberry) 44. 



44a. Berries white; pedicels strongly thickened at maturity 



Baneberry, Actaea alba. 

 44b. Berries red; pedicels slender Baneberry, Actaea rubra. 



45a. Flowers white; stem-leaves alternate 



Isopyrnm, Isopyrum biternatum. 

 45b. Flowers white to pink or purplish; stem-leaves whorled 



Hue Anemone, Anemonella thalictroides. 



