This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol3", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
[Apogon Ell. Bot. S. C. & Ga. 2: 267. 1824.]
Low glaucescent branching annual herbs, with alternate clasping entire or lobed leaves, or those of the stem sometimes appearing as if opposite, and few small long-peduncled heads of yellow flowers. Involucre broadly campanulate, its bracts about 8, equal, membranous, becoming concave after flowering. Receptacle flat, naked. Rays truncate and 5-toothed at the apex. Anthers sagittate at the base. Style-branches slender. Achenes obovoid, 8-10-ribbed, contracted at the base, rounded at the summit. Pappus none, or a mere vestige.
[Greek, small chicory.]
Three known species, natives of the southern United States, the following typical.
Glabrous throughout, or slightly glandular-pubescent along the ends of the peduncles, branched from the base, 4'-10' high. Basal and lower leaves petioled, oblong-lanceolate or spatulate in outline, acute or obtuse, entire, lobed or pinnatifid, 3'-5' long, 2"-6" wide; upper leaves mainly sessile, clasping, alternate, or appearing as if opposite, usually entire, smaller; peduncles very slender, sometimes 4' long; heads 1 1/2"-2" broad; bracts of the involucre acute or acuminate, about the length of the rays.
Kansas to Texas, east to North Carolina and Florida. Recorded from Missouri. March-May.