' 36 Muhlenbergia, Volume g 
POLYGONUM PENNSYLVANICUM L. 
Rare along Hot creek near Oelrichs; (eastern South Dakota). 
POLYGONUM PUNCTATUM EIl. 
Rare along Beaver creek; (Minnesota valley). 
RUMEX MEXICANUS Meisn. 
Occasional along streams. Reported in 1896 by Rydberg 
as R. salictfolius. 
RUMEX PERSICARIOIDES L. 
Frequent along Horsehead creek; (eastern South Dakota). 
Atriplex Suckleyana (Torr.) Rydb. 
Plentiful on gumbo; also in Harding county. 
Atriplex spatiosa A. Nelson? 
Abundant on uplands. 
Sarcobatus vermiculatus (Hook.) Torr. Greasewood. 
Forming a characteristic zone at the outer edge of stream 
terraces in the gumbo areas; also common in the bad lands of 
Washabaugh and Harding counties. 
Erysimum asperrimum (Greene) Rydb. Wallflower. 
Rare on hillsides throughout; also in Harding county. 
LESQUERELLA ALPINA (Nutt.) Wats. Bladder pod. 
Infrequent on the plains. Rydberg states “LZ. a/pzna is not 
found in the Black Hills, Z. spa/ula‘a representing it there.” 
Rosa Fendleri Crepin. Tall rose. 
Everywhere along creeks; grows very tall. 
Agrimonia Brittoniana Bicknell 
Infrequent on the plains. Rydberg believes this to be a 
synonym for A. strzata, which he recorded in 1896. Neither 
name is mentioned by Saunders, however. 
PETALOSTEMON OLIGOPHYLLUS (Torr.) Rydb. Prairie clover. 
Tolerably common on the plains; also in Pine Ridge Res- 
ervation and Harding county. Mentioned as Kuhnistera can- 
dida occidentalis by Rydberg in his 1896 report. 
