KEY TO THE SPECIES OF CEANOTHUS 99 



KEY TO THE SPECIES OF CEANOTHUS 



* Hardy species growing in shade 1-3 feet high ; leaves alternate, 



3-ribbed from base ; blooming July-Sept. (A.) 

 A. Leaves nearly an inch wide, broadest near base. New Jersey 

 Tea (92) — Ceanothus americ^nus. 



A. Leaves ^ inch wide, broadest near middle. Smaller Red-root 

 — Ceanothus ovatus. 



* Pacific region species, generally hardy only South and growing best 



in the sun. (B.) 



B. Leaves opposite, evergreen, widest near tip, |-1 inch long. (C.) 

 C. Flowers white in small clusters along the branches, March to 



May ; tall shrub. Evergreen Ceanothus (93) — Ceanothus 

 cune^tus. 



C. Flowers blue ; procumbent shrub. Spreading Ceanothus. 

 Ceanothus prostr^tus. 



B. Leaves alternate, nearly evergreen, entire-edged. (D.) 



D. Low prostrate vspiny shrub, the only western species likely to 

 be hardy North. Fendler's Ceanothus (94) — Ceanothus 

 Fendleri. 



D. Tall, often spiny ; flowers pale blue, April-June ; leaves i-l 

 inch long. Spiny Ceanothus (95) — Ceanothus divari- 

 cktus. 



D. Tall, not spiny ; flowers blue, April-June ; leaves 1-2 inches 

 long. Entire-leaved Ceanothus (9G) — Ceanothus inte- 

 g^rrimus. 



B. Leaves alternate, notch-edged ; tall shrubs or small trees. (E.) 



E. Flowers white. May, June ; leaves nearly orbicular, 1-3 inches 

 long; branches reddish. Red-stemmed Ceanothus (97) — 

 Ceanothus sanguineus. 



E. Flowers white, June, July ; leaves evergreen, somewhat cor- 

 date, hairy beneath. Velvety Ceanothus (98) — Ceanothus 

 veliitinus. 



E. Flowers blue or purplish, April, May ; leaves hairy beneath. 

 Hairy Ceanothus — Ceanothus hirsutus. 



E. Flowers blue or rarely white, May- July. Blue ' Myrtle ' 

 — Ceanothus thyrsiflorus. 



E. Flowers of many colors and under many names, the garden 

 hybrids. Hybrid Ceanothus — Ceanothus hybridus. 



Zlzyphus. The Jujubes are shrubs or trees with small alternate 3 to 

 5-ribbed leaves, small greenish axillary flowers, drupe-like, usually edible 



