W48 



YAMPA 



Ca'rum gaird'neri, syn. Ate'nia gaird'neri 



Flowers white, very small, in com- 

 pound umbrella-shaped clusters (um- 

 bels); umbels with 6 to 12 branches 

 (rays) 1 to IK in- long 



"Seeds" (mericarps) paired, separat- 

 ing when ripe, small, broadly egg- 

 shaped or nearly round, hairless, with 

 equal, threadlike ribs, crowned by 5 

 prominent projections (calyx teeth), 

 and a low, cone-shaped knob (stylopo- 

 dium) 



Leaves few, alternate, divided into 

 narrow segments (leaflets), or the upper 

 ones simple; bases somewhat sheathing 



Leaflets 3 to 7 (sometimes more), nar- 

 row, grasslike or sometimes threadlike, 

 up to 4 in. long 



Stem solitary, hollow, jointed, slen- 

 der, erect, up to 4 ft. tall, smooth 



Root thickened, tuberous; "tubers" 

 spindle-shaped, 1 to 3 in. long and % to 

 % in. thick, solitary or in a close cluster 

 of 2 or 3 (sometimes more) 



