398 
2 Thermopsis Re Bre 
Erect perennial herbs with alternate palmately trifoliolate leaves : 
bearing conspicuous leaf-like stipules. Flowers showy, yellow, in term- 
Calyx campanulate, 5-lobed, the lobes subequal, Keel of 
inal racemese 
the corolla as long as the wings or longer. Stamens 10, distinet. Pods : 
3 
straight or somewnat curved, linear, flat, many seeded, 
ittckantse Jat ce ctate ie 
tia 
1. Te ovata (Robins.) Rydb. Golden Pea. Stems from a creeping rootstock, 
branching somewhat in the upper axils, all glabrous or nearly so; stipules 
oval, somewhat clasping, 2-5 cm. long, 1-2 om, wide, petioles 2-3 cm, long, 
hirtellous, leaflets oval or rhomboid-oval, 4-6 cm. long, 2-3 om, wide, : 
obtuse at the apexynarrowed below the middle and somewhat acute at the base, 
sessile, the upper surface glabrous, the lower thinly clothed with short 
5-15 cm, long, bracts lanceolate or oblanceolate, 
qw@ hairs; raceme hirte ak ous, 
5-15 mm, long; calyx 1 cm, long, hirtellous, the lobes narrowly deltoid, 
‘acute, 2.5 mn, long, pedicels 2-4 mm, long; corolla bright yellow, nearly 
thrice the length of the calyx, the banner 2 cm. long, keel notched, the 
wings 22-25 MMe long; pods erect, brownish gray, 4-6 cm, long, 6-7 mn, wide, 
flattened, woollye 
Freauent in the southern part of our region in usually open woods on 
1 i 6 y Op 
a 
oven slopes below 3000 fte Separable from T. montana Nutt. by its: oval 
leaflets, that species having linear leaflets and from Larisey's study (1940) 
a plant of more southern distribution, The type of IT, ovata is Piper 1489 
from Cedar Mte, Latah Co. file, 
