BUCKTHORN FAMILY 
77 
1* foliosus Parry. Low shrub with diffuse or horizontally spread- 
in^ branches; leaves broadly oblong with smooth waxy surface and con¬ 
spicuous glandular-serrate margin, 6 to 12 mm. long, frequently with 
smaller ones fascicled in the axils; racemes globose to oblong, 1.2 to 2.4 
cm. long; flowers blue; pods smooth, conspicuously lobed, crested.— 
North Coast Ranges. 
2. C. papillosus T. & G. Open shrub 11 to 17 dm. high; leaves oblong 
to linear, 1.2 to 5.4 cm. long, dark green above with glandular-papillate 
protuberances, pubescent or felt-like beneath; panicles cylindric 1.2 to 
4.2 cm. long; flowers blue; pod lobed and crested.—South Coast Ranges 
near the coast. 
3. C. dentatus T. & G. Low dense shrub; leaves obovate or elliptical, 
becoming strongly or irregularly revolute, 6 to 10 (or 16) mm. long; 
panicles subglobose 1.2 to 3 cm. long; flowers blue; pods promi¬ 
nently crested.—Santa Cruz Mts. to Monterey. 
4. C. thrysiflorus Esch. Blue Blossom. Shrub 11 to 43 dm. high; 
leaves green on both faces, elliptical or oblong-ovate, strongly 3-nerved 
beneath, serrulate, 2.4 to 6 cm. long; panicle 3.6 to 6.6 cm. long; flowers 
blue, rarely white; pod globose, smooth, little lobed.—Mountains near 
the coast. 
5. C. parryi Trel. Parry Lilac. Similar to no. 4; leaves oblong, pin- 
nately veined, dark green above, loosely tomentose beneath, the mar¬ 
gins revolute.—Mountains about Napa Valley. 
6. C. integerrimus H. & A. Deer-Brush. Shrub 11 to 34 dm. high 
with slender branches and pliant branchlets; leaves ovate to oblong-ovate, 
entire, 1.8 to 4.8 cm. long, green above, lighter green below; panicles 
pyramidal, 7.2 to 12 cm. long; flowers commonly white; pod globose, 
somewhat lobed.—Sierra Nevada, Coast Ranges, S. Cal. 
7. C. spinosus Nutt. Tall shrub; branchlets spine-like but slender; 
leaves elliptical, green above, drying brown beneath, 1.2 to 2.4 cm. long; 
panicle 2.4 to 7.2 cm. long; flowers pale blue; pod depressed, scarcely 
lobed, smooth, crestless.—Santa Barbara to S. Cal. 
8. C. divaricatus Nutt. Jack-Brush. Shrub 14 to 40 dm. high with 
rigid divaricate branchlets; leaves ovate, entire or glandular-serrulate, 
glabrous above, puberulent beneath, 1.2 to 3 cm. long; panicles often 
long and narrow, 2.4 to 4.8 cm. long; flowers white or blue; pod little 
lobed, but very glandular.—Middle altitudes, foothills and mountains. 
9. C. sorediatus H. & A. Jim-Brush. Shrub 11.5 to 20 dm. high 
with rigid divaricate branches; leaves ovate or elliptic-ovate, green 
above, paler beneath with appressed hairs, glandular-serrate, 8 to 30 mm. 
long; raceme ovate or broadly oblong, 1.2 to 2.4 cm. long; flowers blue or 
nearly white; pod lobed and crested.—Common in the Coast Ranges. 
10. C. incanus T. & G. White-thorn. Tall shrub, with glaucous 
branchlets; branchlets thick, stout and spur-like; leaves elliptical to ovate, 
dark brown above, strongly 3-nerved and pale beneath, 2.4 to 3.6 cm. long; 
flowers white, in a finely velvety raceme or panicle 3.6 to 7.2 cm. long; 
pod warty, lobed at top.—Coast Ranges. 
11. C. macrocarpus Nutt. Shrub 17 to 34 dm. high, with very slender 
branches; leaves elliptic-obovate or cuneate, 1.2 to 2.4 cm. long, entire, 
