W10 



SMOOTH MOUNTAIN-DANDELION 



Ago'seris glau'ca, syn. Tro'ximon glau'cum 



Flower head solitary, large, at end of 

 an unbranched, elongated, leafless stalk 



Bracts in a several-rowed series around 

 base of (lower head, commonly about 

 ?< in. high; lower row sometimes soft- 

 hairy, never stiff-glandular-hairy 



Leaves all basal, shorter than leafless 

 stalk, lance-shaped to narrowly roversc- 

 lanee-shaped, entire to toothed or lobed 

 around edges, from }' t to l}{ in. wide, 

 hairless, with waxy bloom (glaucous) 



Seed head mature, bristles expanded 

 and seed ready for dissemination 



Taproot thickened, perennial, often 

 with a somewhat branched root crown 



Flowers yellow, often turning rose or 

 purple in age, all strap-shaped, 5- 

 toothed at tips 



"Seeds" (achenes) smooth, 10-ribbed, 

 with beak about }{ as long as body, 

 tipped by crown of whitish, persistent 

 bristles (pappus) 



