GENUS 35. THISTLE FAMILY. 439 
g. Erigeron pulchéllus Michx. Robin’s 
or Poor Robin’s Plantain. Fig. 43609. 
E. pulchellus Michx. Fl. Bor. Am. 2: 124. 1803. 
E. bellidifolius Muhl.; Willd. Sp. Pl. 3: 1958. 1804. 
Perennial by stolons and offsets, villous- 
pubescent; stems simple, slender, 10-24’ high. 
Basal leaves tufted, spatulate or obovate, 
somewhat cuneate at the base, narrowed into 
short margined petioles, obtuse at the apex, 
1-3’ long, 4’-2’ wide, dentate or serrate; stem 
leaves sessile, partly clasping, oblong, lanceo- 
late or ovate, mostly acute, entire, or spar- 
ingly serrate; heads 1-6, slender-peduncled, 
1’-13’ broad; involucre depressed-hemispheric, 
its bracts linear, acuminate, villous; rays nu- 
merous, violet or purplish, 4”-7” long; achenes 
nearly glabrous; pappus simple. 
On hills and banks, Maine to Ontario and Min- 
nesota, Kansas, Florida and Louisiana. Recorded 
from Quebec and Nova Scotia. Rose-petty. 
Robert’s-plantain. Blue spring-daisy. April-June. 
ey 
WZ 
to. Erigeron philadélphicus L. Philadel- 
phia Fleabane. Skevish. Fig. 4370. 
Erigeron philadelphicus L. Sp. Pl. 863. 1753. 
Perennial by stolons and offsets, soft-pubescent 
or sometimes nearly glabrous; stems slender, 
mostly branched above, 1°-3° high. Basal and 
lower leaves spatulate or obovate, obtuse, dentate, 
1’-3’ long, narrowed into short petioles; upper 
stem leaves clasping and often cordate at the 
base, obtuse or acute, dentate or entire; heads 
several or numerous, corymbose-paniculate, 5’— 
12” broad, slender-peduncled; peduncles thick- 
ened at the summit; involucre depressed-hemi- 
spheric, its bracts linear, usually scarious-mar- 
gined; rays 100-150, 2-4” long, light rose-purple 
to pinkish; pappus simple; achenes puberulent. 
In fields and woods, Labrador to British Columbia, 
Florida and California, but locally rare. Races differ 
in leaf-form and pubescence. Buds drooping. Sweet 
scabious. Daisy-fleabane. April—Aug. 
WN 
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Yt aX iii 
11. Erigeron divérgens T. & G. Spreading 
Fleabane. Fig. 4371. 
Erigeron divergens T.& G. Fl. N. A. 2: 175. 1841. 
Annual or biennial, diffusely branched, 6’-15’ high, 
densely cinereous-pubescent or hirsute. Basal and 
lower leaves spatulate or oblanceolate, acute or ob- 
tuse, mostly petioled, entire, dentate or lobed, 1-2’ 
long, 2”-5” wide, the upper sessile, linear or nar- 
rowly spatulate, usually acute, gradually smaller ; 
heads slender-peduncled, 8-12” broad, usually nu- 
merous; involucre hemispheric, about 2’ high, its 
bracts linear, acute, hirsute or canescent; rays about 
100, purplish, violet or nearly white, 2”-4” long; 
pappus double, the shorter outer row of bristles 
subulate. © 
In moist soil, Montana to Nebraska, Texas, Mexico, 
Washington and California. April—Sept. 
