GENUS 70. 



THISTLE FAMILY 



4. Coreopsis grandiflora Hogg. Large- 

 flowered Tickseed. Fig. 4495. 



Coreopsis grandiflora Hogg; Sweet, Brit. Fl. Card. 

 2: pi. 175. 1825-27. 



Perennial ; stem glabrous, usually branched 

 above, i-3 high. Leaves, or most of them, 

 i-2-pinnately parted, or the lower entire and 

 slender-petioled ; segments of the lower stem 

 leaves oblong, obtuse, the terminal one larger 

 than the lateral; segments of most of the stem 

 leaves linear or even filiform, petioles ciliate; 

 heads commonly several, i'-2' broad, long-pedun- 

 cled ; outer bracts of the involucre lanceolate, 

 narrower and mostly somewhat shorter than the 

 oval or ovate-lanceolate inner ones ; rays 6-10, 

 yellow, lobed ; achenes oblong, broadly winged 

 when mature, the projections on the inner face 

 usually large; pappus of 2 short scales. 



In moist soil, Kansas and Missouri to Texas, east 

 to Georgia. May-Aug. 



5. Coreopsis auriculata L. Running or 

 Lobed Tickseed. Fig. 4496. 



Coreopsis auriculata L. Sp. PI. 908. 1753. 



Perennial ; stoloniferous ; stems weak, very slen- 

 der, decumbent or ascending, 6'-i5' long, little 

 branched, or simple, pubescent or hirsute, at least 

 below, mostly glabrous above. Leaves thin, en- 

 tire or pinnately 3-5-lobed or 3-5-divided, the 

 terminal segment entire and much larger than the 

 lateral ones, the lower and basal more or less pu- 

 bescent, broadly oblong or nearly orbicular, with 

 slender pubescent petioles ; stem leaves few, peti- 

 oled or sessile, mostly obtuse; heads i'-ij' broad, 

 slender-peduncled ; outer bracts of the involucre 

 oblong to lanceolate, narrower than the mostly 

 ovate and acute inner ones ; rays 6-10, cuneate, 

 about 4-toothed, yellow ; achenes oval, narrowly 

 winged, the wings involute and thick. 



In woods, Virginia to Illinois, Kentucky, Florida 

 and Louisiana. May-Aug. 



6. Coreopsis tripteris L. Tall Tickseed. 

 Fig. 4497- 



Coreopsis tripteris L. Sp. PI. 908. 1753. 



Perennial; stem glabrous, much branched above, 

 4-8 high. Leaves petioled, glabrous, or very 

 nearly so, firm, the lower all divided into lanceo- 

 late, entire, acute, rough-margined segments, which 

 are 2'-$' long, i'-i' wide and pinnately veined ; 

 uppermost leaves lanceolate, entire; heads numer- 

 ous, slender-peduncled, i'-ii' broad; outer bracts 

 of the involucre linear, obtusish, much narrower 

 and somewhat shorter than the ovate-oval or ovate- 

 lanceolate, acute inner ones; rays 6-10, yellow, ob- 

 tuse, entire ; achenes oblong to obovate, narrowly 

 winged, emarginate; pappus none. 



In moist woods and thickets, southern Ontario to 

 Pennsylvania, Wisconsin, Arkansas, Virginia, Florida 

 and Louisiana. July-Oct. 



