RHAMNE^ 



Leaves alternate, ovate, acute or acuminate, obtuse or sub-cordate at base, 

 serrated, pubescent beneath, strongly 3-nerved, 1-3 ins. long, l-l in. wide ; 

 petioles ^— J in. long. 



A deciduous shrub, 3-4 ft. ; Stem erect or ascending, branching, puberu- 

 lent ; Root deep red. 



Introduced from Eastern N. America, 1713. Also called Red Root and 

 Mountain Sweet. 



BLUE BUSH, Ceanothus azureus. 



Gardens, shrubberies, walls. This is a beautiful shrub for planting in 

 masses in large beds, or for clothing a wall, but is best sheltered from cold 

 winds. It likes a light, porous soil. June — September. 



Flowers azure-blue, in an axillary thyrsoid cyme ; rachis downy ; pedicels 

 smooth ; Fruit a drupe. 



Leaves alternate, ovate-oblong, obtuse, acutely serrated, glabrous above, 

 hoary and downy beneath. 



A deciduous shrub, 6-10 ft. 



Introduced from Mexico, 1818. Also called Blue-flowered Red Root. 



Ceanothus dentatus. 



Gardens, walls. Requires southern aspect ; one of the earliest to flower. 

 May, June. 



Floivers blue, in cymose clusters ; peduncles naked ; Fruit a drupe, 3-lobed. 

 Leaves fascicled, obovate or oblong-elliptic, acute, undulate or revolute. 

 A deciduous climber or erect shrub, 4-10 ft. ; nearly glabrous. 

 Introduced from California, 1848. Syn. C. Lobbiamis. 



STRAGGLING BLUE BUSH, Ceanothus divaricatus. 



One of the best for covering walls. Requires southern aspect. When 



in a favourable situation will make shoots 6 ft. long in a season. May — 



September. 



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