GREEN OR GREENISH FLOWERS 103 



GREAT WATER-DOCK (Rumex Britannica). Buckwheat 



family. 



Ht. several ft.; flowers small in panicle; sepals 6, 

 no petals; leaves very large, 1-2 ft. long. Wet 

 ground. Summer. 



VIRGINIA SNAKEROOT (Aristolochia Serpentarid) . Birth- 

 wort family. 



Av. ht. i ft. ; stem woolly ; flowers small, greenish, 

 few, near base of plant, on long stalks, with curved 

 calyx; leaves heart-shaped, long pointed. Early 

 summer. Conn., West and South. 



6. Upright herb, leaves compound. 



BLUE COHOSH (Caulophyllum thalictroides) . Barberry fam. 

 Max. ht. 2^ ft.; flowers at end of stem in small 

 raceme or open cluster; sepals 6; petals 6; leaves 

 thrice compound; leaflets inversely egg-shaped, 

 lobed. Rich woods. Early spring. 



EARLY MEADOW RUE (Thalictrumdioicum) . Crowfoot fam. 

 Max. ht. 2 ft.; flowers clustered; sepals 45, 

 petal-like; petals none; leaves twice or thrice 

 compound; leaflets with stalks, drooping, rounded, 

 lobed. Rocky woods. Early spring. 



TALL WORMWOOD (Artemisia caudata). Composite fam. 

 Av. ht. 3-4 ft.; flower-heads disk-shaped, small, 

 in open cluster (panicle) ; leaves dissected into 

 linear divisions. Sandy ground on coast. Summer. 



II. CLIMBING OR RECUMBENT PLANTS. 

 7. Climbing or recumbent, leaves compound. 



POISON IVY. POISON OAK (Rhus Toxicodendron). Ca- 

 shew family. 



Climbing or erect ; flowers in loose axillary clusters ; 

 leaflets 3, rhombic to egg-shaped, mostly pointed, 

 unequally notched, wavy or cut. Spring. 



