346 



List of Shrubs 



number of ornamentals, both trees and shrubs, distributed through 

 many genera. 



Acacia, see Trees [List B]. 



Albizzia, see Trees [List B]. 



Amorpha. A.fntcticosa Linn. (90), False Indigo, a native of southern 

 United States, but hardy north to Ottawa, is a spreading shrub (six to 

 eight feet and more), with many shoots, beset with oblong, pinnate 

 leaves of many bright green leaflets, and unusual, dark violet, purplish 

 small flowers, appearing in terminal sjiikes or racemes, bunched in twos 

 and threes (June). It is adapted to dry situations and fit for "borders 

 and massing on rocky slopes and banks. 



A. canescens Nutt. (91) or Lead Plant, a native dwarf of the Middle 

 West, is useful for color effects because of its generally whitish-silvery 

 or lead-colored hues in foliage and stems, and its late, deep purple to 

 light blue flower spikes (June to August). It is also fit for dry soils. 

 especially in rock gardens, and hardy. 



Caragana, Pea Tree, see Trees [List B]. 



Cercis, Redbud, see Trees [List C]. 



Cladrastis, Yellow-wood, see Trees [List B]. 



Colutea. C. arhoresccns Linn. (92), Bladder Senna, a native of Italy, 

 is the hardiest and most adaptive of this otherwise not quite hardy 

 genus, a medium-sized (six to ten feet), slender shrub, decorative by 

 reason of its glaucous green foliage of compound leaves, holding their 

 color into late fall, and of its yellow to brownish-red flowers, continu- 

 ing through the summer, followed by an interesting, balloon-like fruit, 

 green to reddish, which gives it its name. It makes a well-rounded 

 head, and thrives best in sunny situations and well-drained soil, but 

 is only half hardy, and rarely used.* 



C. criienta Ait. (93) (orienlalis), a smaller shrub, from southern 

 Europe, with pale red to orange flowers, and a few other species and 

 varieties are also useful. 



Cytisus, the well-known Broom, is a genus with some forty-five 

 species from Europe, Africa, and Asia. It is noted for its free flower- 

 ing habit, with yellow, white, and purple racemes in early spring and 

 summer. These shrubs grow in almost any soil, even a dry gravelly 

 one, and arc mostly hardy. They are well adapted for borders of 

 shrubberies. 



C. scoparius Link. (94), the Scotch Broom, a low (six to ten feet) 

 shrub, has become naturalized in many places. It is useful in cover- 



