74 
PLANTS OF YELLOWSTONE NATIONAL PARK 
Shrubby cinquefoil ( Dasiophora fruticosa) .—A freely branched 
shrub, 1 to 3 feet high, with pinnate leaves and showy, yellow flowers. 
It makes a very nice ornamental shrub, for if it has sufficient water 
supply, it blooms practically all summer. The whole plant is more 
or less whitened by short, silky hairs. 
American red raspberry ( Rubus strigosus). —A shrub with very 
prickly stems, alternate, pinnately-compound leaves and white flow¬ 
ers. The fruit is light red and of excellent flavor. 
Whiteflowering raspberry ( Rufous parviflorus) This is a shrub with 
stems 3 to 6 feet high. The leaves are palmately and nearly equally 
five-lobed, heart-shaped at the 
base, unequally toothed and 4 to 
10 inches broad. The flowers are 
white and 1 to 2 inches across. 
The fruits are salmon-red and 
resemble large raspberries. 
Spiraea l/ucida is a shrub, 1 to 
3 feet high, with simple, oval, or 
oblong leaves that are toothed 
around the apex. The small, 
white flowers are borne in flat, 
terminal clusters. 
Spiraea densiflora is similar, 
but the flowers are rose color. 
The genus is known as spirea. 
Mallow ninebark ( Physocarpns 
malvaceus) is a shrub and grows 
3 to 6 feet high. The leaves are 
round or oval, five-veined, some¬ 
times three-lobed above the 
middle and more or less toothed. 
The white flowers are borne in flat, terminal clusters. 
Dryad ( Dryas octopetala ) is not common in the park and is found 
only on very high mountains. It is a dwarf, matted, somewhat 
shrubby plant with simple, toothed leaves and white flowers with 8 
or 9 petals each. 
Prairie-smoke (Sieversia ciliata) .—The leaves of this plant are 
mostly basal. They are compound and the leaflets are deeply cut, 
often nearly to the midrib. There are usually three flowers on each 
stem, and both the calyx and petals are rose-red to purplish. The 
styles remain attached to the fruits and become very long and 
feathery. 
Sieversia turbinata grows at very high altitudes, and the stem is 
only 3 to 6 inches high. The leaves are similar to those of the pre- 
Figure 53.—Shrubby cinquefoil. Yellow. 
Copyright, J. E. Haynes. 
