DICOTYLEDONOUS PLANTS 229 
Akenes flattish, crowned with a single row of hair-like bristles, 
or sometimes with shorter bristles or scales outside these. 
Disk yellow, rays white, pinkish, or purple. 
1. E. annuus, Pers. ComMMON FLEABANE. Annual or biennial. 
Stem grooved and stout, branching, 2-5 ft. high, with scattered 
hairs ; lowest leaves petioled, ovate, coarsely toothed, those higher up 
the stem successively narrower, sessile; heads in a large loose 
corymb ; rays short, white or purplish. Fields and waste ground. 
2. E. strigosus, Muhl. Daisy FLEABANE. Annual or biennial. 
Considerably resembling the preceding species, but with entire 
leaves, smaller and less branched stem, smaller heads, and longer 
rays. Fields and pastures. 
3. E. bellidifolius, Muhl. Ropin’s PLANTAIN. Perennial. Soft- 
hairy; stems sometimes throwing out offsets from the base; simple, 
erect, 1-2 ft. high; root-leaves, obovate-obtuse, somewhat serrate ; 
stem-leaves few, lance-oblong, acute, clasping; heads rather large, 
1-9, on long peduncles, with 50-60 long, rather broad, bluish-purple 
or reddish-purple rays. Thickets and moist banks. 
4. E. philadelphicus, L. Perennial. Rather hairy; stems slender, 
about 2 ft. high; root-leaves spatulate and toothed; stem-leaves 
usually entire and strongly clasping, sometimes with a heart-shaped 
or eared base ; heads several, small, long-petioled ; rays exceedingly 
numerous, thread-like, reddish-purple or flesh-color. In damp soil. 
III. COREOPSIS, L. 
Annual or perennial herbs. Leaves opposite or the upper 
alternate, entire or pinnately divided. Heads radiate, solitary 
or corymbed, many-flowered ; bracts in 2 rows of about 8 each, 
the inner membranaceous and appressed, the outer narrower 
and spreading; receptacle chaffy. Ray-flowers neutral; disk- 
flowers tubular, perfect. Akenes compressed, oval to oblong, 
often winged. Pappus of 2 scales or bristles, or wanting.* 
1. C. tinctoria, Nutt. GARDEN Coreopsis. Annual. Stem erect, 
smooth, branched, 2-3 ft. high. Leaves 2-3 times pinnately divided, 
the divisions linear, lower leaves petioled, the upper often sessile and 
entire. Heads 1-14 in. wide, on slender peduncles ; inner bracts 
brown with scarious margins, outer bracts very short. Ray-flowers 
about 8, yellow with a brown base, 3-lobed at the apex. Akenes 
linear. Pappus minute or none. Common in gardens.* 
2. C. lanceolata, L. TicksEEpD. Perennial; stem slender, erect 
or ascending, smooth or slightly downy below, simple, 9-15 in. high. 
Leaves opposite, the lower spatulate to elliptical, sometimes lobed, 
