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. 
Odservations : Rocky Mountain mule deer. 
Ceanothus prostratiis Benth. (pi. Q, B). Maliala mat. 
Range: 4, 9, 12. 
Site : Dry, w^ell-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 puhescens (Torr. and Gray) Rydb. 
C. ovatns pubescens Torr. and Grav. 
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. Eigid ceanothus. 
0. 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. fres7Wfisis Jeps. extends the range to region 8. 
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. 
Stmnach 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. 
