CASSIA MARILANDICA. 
American Senna. 
PLATE XXXIX. 
Tas tall and luxuriant plant is found in rich 
soils in the vicinity of water from New England 
to Carolina, and westward to the banks of the 
Missouri. The most northern situation in which 
I have known it decidedly indigenous, is on the 
banks of the Quinebaug river near the southern 
boundary of Massachusetts. It is, however, cul- 
tivated in gardens for medicinal use much further 
to the north. It is a vigorous herbaceous peren- 
nial with stalks four or five feet high, haying 
their summits covered in July and August with 
brilliant yellow flowers. 3 
The extensive genus Cassia has a five-leaved 
calya and five petals ; anthers unequal, the three 
uppermost barren, the three lowermost longer, 
