MANAGEMENT CONSIDERATIONS: Sphaeromeria argentea is a low, 

 aromatic subshrub that is probably upalatable to livestock. 

 Current management practices are probably not detrimental to 

 populations of this plant. 



Thelypodium sagittatum (Nutt.) Endl. 



Slender thelypody 



DESCRIPTION: Slender thelypody is a herbaceous biennial or 

 short-lived perennial with solitary, simple or branched stems, 3- 

 8 dm (1-2.5 ft) high, from a taproot. The lower leaves, 6-20 cm 

 (2-8 in) long, have petioles and broadly lance-shaped, entire- 

 margined blades, while upper leaves are smaller, narrowly arrow- 

 shaped, and without petioles. Foliage is glabrous or nearly so 

 and has a thin, waxy coating. Flowers are densely clustered on 

 ascending stalks in cylindric inflorescences that expand greatly 

 in fruit. Each flower has 4 separate sepals, 3-7 mm long; 4 

 separate, lavender petals, 7-14 mm long and 1-3 mm wide; 4 long 

 and 2 short stamens. The ascending, straight, cylindric 

 (siliques) are 18-53 mm (1-2 in) long and less than 1 mm wide. 



This species is similar to T. paniculatum, but the latter has 

 fruits greater than 1.3 mm wide and petals more than 2 . 5 mm wide. 

 T. sagittatum might also be confused with species of Arabis , but 

 these plants have flattened rather than cylindrical siliques. 



GEOGRAPHIC DISTRIBUTION 



Global distribution: southeast Washington to California 

 east to southwest Montana, Wyoming and Colorado. 



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