SORBARIA 



159 



Fig. 236. — Ninebark. 



Fig. 237. — Golden Niuebark. 



tivation, but there is a taller and more 

 vigorous species from eastern Asia, <.-■ 

 Eastern Ninebark — Physocarpus 

 amur^nsis, — which can be known by its 

 smaller and more hairy pods only one 

 third longer than the calyx lobes ; the 

 leaves, also, are more decidedly lobed 

 and more sharply notched. 



[Twig cuttings ; seeds. ] 



Sorbaria. The Ash-leaved 

 Spireas are beautiful hardy 

 shrubs with pinnate or bipin- 

 nate leaves and spirea-like white 

 flowers in showy terminal pan- 

 icles. Except the last species 

 they all prefer rich and rather 

 moist soil. They put out their 

 foliage early in the season. 



[Twig cuttings ; root cut- 

 tings ; suckers ; seeds.] 



Fig. 238,— 



Mouiit;ii:i-ash 



Spiiea. 



