Polygonaceae 



Poiygonum Smooth, with a corm-like root- 

 viviparum stock ; stems solitary or clustered, 

 L. Alpine 2 -io inches high. Basal leaves 

 Bistort. lanceolate or oblong, 1-8 inches 



long, rather acute, cordate at the base on long 

 petioles; stem leaves narrowly lanceolate or 

 linear, upper sessile with revolute margins. 

 Flowers in a dense terminal raceme several 

 inches long; rose-coloured or white; stamens 

 exserted; small bulblets frequently devel- 

 oped among the flowers, which later produce 

 leaves and young plants. 



Frequent in moist sandy soil and river 

 banks throughout the Rockies, flowering in 

 June and July. 



Several small weedy species of the genus 

 are also found through the region but are not 

 sufficiently striking to be here described. 



Eriogonum 

 subalpinum 



Greene. 

 Tall White 

 Eriogonum. 



Stems depressed, much branched, 

 prostrate and matted at the 

 base. Leaves oblong to ovate- 

 spatulate, 1-2 inches long, on 

 slender petioles, smooth and 



