serious disturbance from livestock. However, P. incana often 

 occurs in relatively open soil on hummocks; thus, the micro- 

 habitat may be maintained by moderate disturbance (Kelso 1987) . 

 It seems possible that moderate grazing enhances the habitat for 

 P. incana, while heavy grazing and trampling destroys the habitat 

 (Fig. 3) . Monitoring is needed in order to determine the effects 

 of current management practices on this species. 



Sphaeralcea munroana (Dougl.) Spach 



White-stemmed globemallow 



DESCRIPTION: White-stemmed globemallow is a perennial herb with 

 numerous simple or branched stems up to 2-8 dm (8-32 in) tall 

 from a thick, woody root crown. The alternate leaves have 

 slender petioles and spade-shaped blades, 2-6 cm (1-2 in) long, 

 with wavy and shallowly lobed margins. Stem leaves become 

 smaller upward, and the foliage is covered with star-shaped 

 hairs. Small clusters of short-stemmed flowers are borne at the 

 top of the stem subtended by reduced leaves (bracts) . Each 

 flower has a 5-lobed calyx with 3 narrow bracts at the base and 5 

 shallowly lobed, apricot to reddish petals, 1-2 cm long. The 

 numerous stamens are united into a column that surrounds the 

 style below the 8-12 tipped stigma. The mature ovary is 

 hemisperic and divided into sections (carpels) like a grapefruit 

 half. Each section has a single seed. 



Sidalcea oregana has pink flowers. Sphaeralcea coccinea has more 

 deeply divided leaves and rarely grows more than 2 cm (8 in 

 tall) . 



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