90 MISC. PUBLICATION 303, U. S. DEPT. OF AGRICULTURE 



Ceanothus pinetorum Cov. Kern ceanothus. 



Range: 4. 



Site : Well-drained, sun. 

 Fruit: Capsule. 



A small, spreading or erect shrub; flowers in June; occurs from 7,000 to 

 8,800 feet ; procumbent or prostrate forms are known. 

 Observations: Rocky Mountain mule deer. 



Ceanothus prostratus Benth. (pi. 6, B). Mahala mat. 



Range: 4, 9, 12. 

 Site : Dry, well-drained, sun. 

 Fruit: Capsule. 



A small, prostrate evergreen shrub; branches root where in contact with 

 the soil, and form a matlike ground cover; forms are known that are not 

 as prostrate as the species. 



Var. grandifolius Jeps. occurs in region 1. 



Observations: Fair browse for mule deer. Forage value for livestock slight 

 or negligible. 



Ceanothus pubescens (Torr. and Gray) Rydb. 

 C. ovatus pubescens Torr. and Gray. 



Range : 15, 16, 18, 21, 22, 24, 25, 29, 30. 

 Site : Dry, sun. 

 Fruit : Capsule. 

 A small shrub ; flowers May-July ; occurs in sandy soils. 



Ceanothus purpurea, see Ceanothus jepsonii. 



Ceanothus rigidus Nutt. Blgid ceanothus. 



O. verrucosus rigidus Brandeg. 

 Range: 1, 4. 



Site : Dry, well-drained, sun. 

 Fruit: Capsule. 



A small to large shrub; flowers February-April; rigidly and divaricately 

 branched ; occurs in sandy and other soils ; closely related to C. cuneatus 

 (q. v.), possibly only a blue-flowered variety; 92 percent germination of seed 

 obtained by treating in hot water to 158 F., cooling, and sowing for 16 weeks. 

 Var. fresnensis Jeps. extends the range to region 3. 

 Observations: Fair browse for mule deer. 



Ceanothus sanguineus Pursh. Redstem ceanothus. 



C. oreganus Nutt. 



Range: 1, 2, 4, 12, 24. 

 Site : Dry, well-drained, sun. 

 Fruit: Capsule. 



A small to large shrub ; flowers May-June. 

 Stomach records: Valley quail. Palatability to stock, fair to fairly good. 



Ceanothus serpyllifolius Nutt. 

 Range: 30. 



Site: Well-drained, sun. 

 Fruit : Capsule. 

 A small, diffusely-branched, decumbent, evergreen shrub ; flowers April-May. 



Ceanothus sorediatus Hook, and Arn. Jim brush. 



Range: 4. 



Site: Dry, sun. 



Fruit: Capsule. 



A large, thicket-forming, spiny shrub ; flowers April-May ; coppices vigorously 

 after cutting or burning ; produces little shade ; occurs from 500 to 2,500 feet ; 

 practically 100-percent germination of seed can be obtained by boiling 5 minutes 

 and stratifying 3 months at 36 F. 

 Ceanothus spinosus Nutt Greenbark ceanothus. 



Range : 5. 



Site : Dry, well-drained, sun, shade. 



Fruit: Capsule. 



Commonly a large shrub or rarely a small tree ; partly evergreen, often wide 

 spreading and straggling ; sometimes spiny ; colony forming ; occurs below 2,000 

 feet ; practically 100-percent germination of seed is obtained by heating in water 

 to 158 F., cooling, and sowing for 16 weeks ; about 48,000 seeds per pound. 

 Observations; Of fair importance as browse for mule deer. 



