IRESINE 
Iresine rhizomatosa Standley, bloodleaf, p. 626 
TIDESTROMIA 
¢Tidestromia lanuginosa (Nutt.) Standley, p. 626 
ANACARDIACEAE, cashew family 
COTINUS, smoke tree 
Cotinus obovatus Raf., American smoke tree, p. 999 
RHUS, sumac 
(see also TOXICODENDRON) 
Rhus aromatica Aiton, fragrant sumac, polecat bush, p. 1002 
var. aromatica [S: incl. var. illinoensis (E. Greene) Rehder] (the 
validity of var. illinoensis requires further study; see 
G: for discussion) 
var. serotina (E. Greene) Rehder (note that there is no 
consensus on whether to maintain this taxon as a 
variety of R. aromatica or R. trilobata Nutt., or even 
whether to maintain the latter as a separate species or 
as a variety of R. aromatica; see G: and Spellman and 
Dunn (1965) for discussion) 
R. copallina L., dwarf sumac, winged sumac, shining sumac, 
1000 
p. 
var. latifolia Engler [G, M: R. copallina] (the validity of this 
has not been examined critically) 
R. glabra L., smooth sumac, p. 1000 
¢R. typhina L., staghorn sumac, p. 1000 
f. dissecta Rehder, dissected staghorn sumac 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
