COMPOSITE FAMILY 245 
2. L. columnaris T. & G. Prairie Corr Frower. Stem rough- 
hairy, slender, usually branching from the bage, 1-2 ft. high. Leaves 
pinnately divided into oblong to narrowly linear segments. Disk 
columnar, sometimes more than 1 in. long. Rays 4-10, drooping, 
yellow or partly or entirely brownish-purple, as long as or somewhat 
shorter than the disk, On dry prairies, especially W. and S.W. 
VI. 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, bisexual. Akenes compressed, oval to oblong, 
often winged. Pappus of 2 scales or bristles, or wanting.* 
1. C. tinctoria Nutt. Garpen Corzopsis. 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 1-1} 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. Ticxsrrep. 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, on 
long, hairy-fringed petioles; the wpper lanceolate, sessile. Heads few, 
on long peduncles; bracts ovate-lanceolate, the outer narrower. Ray 
flowers 6-10; rays 3-5-lobed, bright yellow. Akenes oval, broadly 
winged, warty. Pappus of 2 teeth. On rich, dry soil, 8. and E.* 
3. C. grandiflora Hogg. Larcre-FLowErEp Ticxsrrp. Usually 
perennial; stem smooth, commonly branched above, 1-3 ft. high. 
Most of the leaves once or twice pinnately parted, the lower some- 
times entire, on slender petioles; segments of most of the stem leaves 
linear or thread-like. Heads usually several, 11-2 in. in diameter, on 
long peduncles; outer bracts lanceolate, narrower and shorter than 
the inner ones, Rays 6-10, yellow. Akenes oblong, with broad wings 
when ripe. In moist soil, especially 8.W. 
4. C. auriculata L. Runnine Tickserep. Perennial; stem ascend- 
ing or decumbent, weak, smooth, nearly simple, 6-15 in. long. 
Leaves ovate to oval, entire or with 2-4 small and rounded lobes at 
the base, downy, long petioled. Heads 1-1} in. wide, few or single; 
outer bracts narrower than the inner. Rays 6-10, mostly 4-toothed 
