W56 



NINELEAF BISCUITROOT 



Cogswel'lia triterna'ta, syns. C. sim'plex, Loma'tium sim'plex, 

 L. triterna'tum 



Flowers small, yellow, borne in com- 

 pound umbrella-shaped clusters (um- 

 bels); hub of umbel free from bracts 

 (involucre); rays of umbel up to 3% in. 

 long, unequal, making umbel irregular 

 or lop-sided 



Secondary flower clusters (umbellets) 

 encircled at base by small, narrow 

 bractlets (involucels) 



"Seeds" (mericarps) paired but sep- 

 arating when ripe, strongly flattened, 

 with thin side wings, unnotched at base 

 or apex, hairless, roundish to narrowly 

 oblong, X to X in- long, % to % in. wide; 

 backs~with fine, equal ribs; face slightly 

 concave, prominent terminal appendage 

 (stylopodium) lacking 



Leaves mostly basal, divided into 

 elongated segments (leaflets); leaflets 

 narrowly linear to linear-lance-shaped, 

 up to 4 in. long, hairless to minutely 

 downy 



Stem slender, erect, up to 28 in. high, 

 naked or with few leaves, minutely 

 downy, summit not swollen 



" Taproot thick, elongated, not tuberous 



