Descriptive Flora 



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Senecio pluttensis Nutt. Ragwort 

 Resembles Senecio obovatus but the foliage is permanently 

 covered with spidery-woolly hairs. Plant is usually slightly 

 stouter and 1 to 3y 2 feet high. Blades of basal leaves oblong or 

 ovate-oblong (sometimes ovate), some or all of them segmented, 

 the terminal segment larger and toothed. Flowers % to 1 inch 

 across. Rays about a dozen. Bracts of involucre usually cob- 

 webby. April and May. Shaded ravines and hillsides. 



Senecio rotundus (Britton) Small Ragwort. 



Similar in general structure to Senecio obovatus. Root leaf- 

 blades rounded or rounded-ovate, coarsely blunt-toothed or rare- 

 ly pinnatifid, narrowed into slender petioles as long as the blades 

 or longer. Stem leaves deeply cut, far apart, few. Rays 5-7mm. 

 long, deep yellow. In wet soil, following rocky creek beds- 

 February and March. The earliest of the Senecios. Plants 

 usually smaller than Senecio obovatus. 



Senecio lobatus Pers. Golden Ragwort. 



Plants similar to the above species in general appearance. 

 Leaf -blades 1 to 4" long, slightly fleshy, deeply cut along the sides 

 into wedgeshaped coarsely-toothed lobes, and forming a rosette at 

 the base. Stem leaves similar, alternate, far apart. Flowers 

 composite, yellow, less than % inch across, in flat topped clusters 

 at the ends of long, slightly twisted, hollow-grooved stems. Rays 

 about 12. March and April. Usually low, rich ground out in 

 the open. 



Senecio ampullaceus Hook. 



Erect annuals, 1 to 3 feet high, with ascending branches 

 ending in clusters of yellow composite flowers similar to the 

 above Senecios in general appearance. Stem leaves simple, alter- 

 nate. Blades thickish, entire or coarsely toothed, never divided, 

 ovate to oblong, long pointed. Flowers composite, 1 to 1*4 " 

 across. Rays 7 to 9. Fruit hairy achenes, tipped by a tuft of 



