115 
PHASEOLUS, bean 
¢Phaseolus lunatus L., lima bean, butter bean, p. 950 
var. lunonanus L. Bailey, dwarf sieva bean, dwarf lima bean 
+P. polystachios (L.) Britton, Sterns & Pogg., wild bean, p. 948 
var. polystachios 
¢P. vulgaris L., common bean, French bean, p. 950 
var. humilis Alef., bush bean 
PISUM, pea 
¢Pisum sativum L., pea, garden pea, p. 947 
var. arvense (L.) Poiret, field pea, Austrian winter pea 
*var. sativum, English pea (Miihlenbach, 1979) 
PSORALEA (see ORBEXILUM, 
PEDIOMELUM, PSORALIDIUM) 
PSORALIDIUM, scurfy pea 
[S, G, M: PSORALEA] (Isely, 1986b) 
Psoralidium argophyllum (Pursh) Rydb., silvery psoralea, silverleaf 
scurf pea [S, G, M: Psoralea argophylla Pursh] (Isely, 
1986b) (note that this species actually belongs in 
Pediomelum (Grimes, 1988), but a combination in that 
genus has not been published yet), p. 897 
P. tenuiflorum (Pursh) Rydb., scurfy pea, few-flowered psoralea, 
wild alfalfa [S: Psoralea tenuiflora Pursh, incl. var. 
floribunda (Nutt.) Rydb., var. tenuiflora f. alba 
Steyerm.; G: Psoralea tenuiflora, incl. var. floribunda; 
M: Psoralea tenuiflora] (Isely, 1986b) (note that no 
valid combination under Psoralidium presently exists 
for f. alba), p. 896 
PUERARIA, kudzu vine 
¢Pueraria lobata (Willd.) Ohwi, kudzu vine, p. 956 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
