MISSOURI BOTANICAL GARDEN BULLETIN 133 
Robinia hispida or Rose Acacia.—Though this is a small 
shrub from 3 to 4 feet high, it is very hardy, spreading b 
underground rootstocks. The showy flowers are a rose-pin 
and appear in late spring or early summer. 
Spiraea.—Among the seer are the following pink or 
rose-colored varieties: S. Billardi (rose), S. collossa (pink), 
S. Douglassi (rose) , S. salicifolia (rose), S. Bumalda (pink), 
and S. “Anthony Waterer” (crimson). 
Syringa.—Among the syringas are many varieties that 
may be classed as pink or rose. 
Desmodium Seen i a at RE oo is a low-growing shrub 
which dies to the ground each winter but attains a height of 
about 3 to 4 feet during the summer. It is a beautiful speci- 
men in flowering time in September with its branches a mass 
of rosy pink reaching to the ground, and coming at a time 
of the year when flowering aah are scarce is a valuable 
addition to any planting scheme. 
Hibiscus Moscheutos or Mallow.—This is another shrub 
which dies to the ground in the winter. The large flowers 
are 6 to 8 inches across and come in all shades of red and also 
hoe It is a rapid-growing plant and should be in every 
garden. 
BLUE, PURPLE, AND VIOLET-FLOWERING SHRUBS 
Amorpha fruticosa.—This is commonly known as the false 
indigo. It is a hardy, free-flowering b with feathe 
foliage, which thrives in sunny situations in well-drained soil. 
It is very valuable for border plantations or for massing on 
rocky slopes and banks, the unusual color of the flowers 
(purple) invariably attracting attention. The flowers grow 
in clustered racemes which are 3 to 6 inches long and the 
plant varies from 6 to 10 feet in height. 
Hibiscus.—Among the varieties of hibiscus which have a 
purplish tinge may be mentioned the following: H. ardens 
(dark violet), H. coelestis (sky-blue), H. “Duchesse de 
Brabant” (lilac), and H. purpurea (purple). 
Rhus Cotinus——This is commonly known as the smoke- 
bush and is desirable for its height and the smoke-like masses 
of purplish flowers which come in midsummer. 
Calycanthus floridus or Carolina Allspice.—This is a well- 
known native shrub growing from 6 to 8 feet high. The 
flowers which are produced after the leaves in June are 
double, brownish purple, and very fragrant. 
Diervilla Lavellei.—This is a reddish purple variety of the 
diervilla which blooms in June. 
