NATIVE WOODY PLANTS OF THE UNITED STATES 
95 
Cercis canadensis L. (pi. 8, A). Redbud. 
Range : 22, 23, 24, 25, 27, 28, 29, 30. 
Site: Dry, well-drained, sun, shade. 
Fruit : Legume ; available July-August, pods persist throughout winter, 
seeds fall or not. 
A small tree; flowers March-April; occurs in slightly acid, sand, loam, 
calcareous, and other soils ; root nodules are not formed by this legume ; propa- 
gation is by seed treated with hot water and sown in spring; about 25,000 
seeds per pound; seed germination 80 percent, about 2,000 usable plants per 
pound of seed. 
Stomach records: Three species of birds, including bob white ; white-tailed 
deer. O'bservations: Bob white; captive marsh rabbit. 
Cercis occidentalis Torr. Western redbud. 
Range : 3, 4, 5, 9, 11, 14, 16, 17. 
Site: Dry, well-drained, moist, sun. 
Fruit : Legume, available July-August. 
A large shrub to small tree ; flowers February-April ; occurs in slightly acid 
soil ; roots very long laterally ; propagation is by seed treated with hot water 
and subsequently chilled for 3 months before sowing. 
Observations: Rocky Mountain mule deer. Without forage value for live- 
stock. 
Cercis reniformis Engl. Texas redbud. 
C. texensis Sarg. 
Range: 17, 20. 
Site: Dry, well-drained, sun. 
Fruit: Legume. 
Commonly a small to large shrub, more rarely a small to large tree ; occurs 
on limestone or slightly acid soil ; forms dense thickets ; propagation is by seed 
treated with hot water and sown in spring. 
Cercis texensis, see Cercis reniformis. 
Cercocarpus spp. Mountain-mahoganies. 
Stomach records (in addition to specific records) : Black-tailed deer. Ob- 
servations (in addition to specific records) : A favorite food of Rocky Mountain 
mule deer and of Columbian black-tailed deer; yellow-haired porcupine'. 
The species generally furnish much forage for cattle, sheep, and goats at all 
seasons. 
Cercocarpus alnifolius Rydb. Alderleaf mountain-mahogany. 
C. parvifoUus Sarg., in part. 
Range: 5. 
Site: Dry, well-drained, sun. 
Fruit: Achene, available July-September. 
A large shrub or small tree; semievergreen ; flowers in March; 33,000-60,000 
seeds per pound. 
Cercocarpus argenteus Rydb. Silver mountain-mahogany 
Range: 14, 16. 
Site : Dry, sun. 
Fruit : Achene, available in August. 
A large evergreen shrub, flowers in May. An excellent browse for goats, 
relished also by cattle and sheep. 
Cercocarpus arizonicus, see Cercocarpus intricatus. 
Cercocarpus betuloides Nutt. Birchleaf mountain-mahogany. 
C. parvifoUus betuloides Sarg., C. rotundifolius Rydb., C. douglasii Rydb. 
Range: 4, 5, 9, 11. 
Site: Dry, sun. 
Fruit: Achene, available July-September. 
A large shrub to small or rarely large tree ; evergreen ; flowers April-June ; 
exceedingly variable; crown sprouts with vigor after fire or with advance of 
old age; seed germinates well as soon as planted; in the mountain regions 
generally occurs below 6,000 feet. 
O'bservations: Of fair importance as browse for mule deer. An important 
browse for cattle and sheep. 
Site: Dry, sun. 
130186°— 39 7 
