40 
Rubia tinctoria. Madder. 
The E of this prickly dye plant makes forage ` "m TO if cut the second 
ason before the plants have commenced to blos 
Salicornia herbacea. Saleratus weed; Samphire; Glasswort. 
A low, fleshy, leafless herbaceous plant, growing in the borders of salt marshes from 
Arizona to the Saskatchewan and along the Atlantic coast. It grows on soils 
too salty or too alkaline to support any other plant. In portions of ur aes 
in Utah itis valued mires for winter feed. After frost, stock li 
upon itand “winter fat 
Sarcobatus vermicularis. Greasewood. (Fig. 41.) 
An erect, 9 8 shrub 2 to 8 feet high, with the leafy branches covered by smooth, 
whit It is one of the most common of the shrubs called ** greasewood,” 
in ine us from Montana to New Mexico and Arizona, and where it is abun- 
Fic. 41.—Greasewood (Sarcobatus vermicularis). FIG. 42.—Sida elliottii. 
dant, supplies a considerable part of the winter forage on the ranges. This and 
e saleratus weed belong to the Pigweed family, of which the Australian salt- 
bush, so widely recommended for culture on alkaline soils, is a member. 
Schrankia angustata and S. uncinata. Sensitive briar; Sensitive plant. 
These herbaceous or shrubby legumes with prickly stems and sensitive leaves occur 
Dror the southern half of the prairie region. = foliage is eaten by 
and contributes some value to the native pasture 
_ Scirpus atrovirens. Meadow rush. 
bs A sedge with rather stont, triangular stems 1j to 3 feet high, and broad, smooth, 
|»  .  bright-green leaves which become rigid with age. TOME distributed ee 
