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..
Gerardia purpurea var. paupercula A. Gray, Syn. 2:
Annual, glabrous and smooth or very nearly so; stems strict, branched above, 6'-18' high, the branches nearly erect. Leaves narrowly linear, 1/2' - 1' long, 1/2" - 1" wide, spreading or ascending; pedicels equalling the calyx, or longer in fruit; calyx campanulate, its teeth about one-half the length of the tube, triangular-lanceolate, acute, or acuminate; corolla 6"-10" long, puberulent, rose purple, its limb about as broad, somewhat villous in the throat within, the lobes ciliate; stamens very villous; anther-sacs mucronulate at the base; capsule globose-oblong, 3" high, longer than the calyx.
In bogs and low meadows, Nova Scotia to New Jersey, Tennessee, Manitoba and Wisconsin; apparently also in Georgia and South Carolina. July-Sept.
Gerardia maritima Raf. Med. Rep. (II.) 5: 361. 1808. A. maritima Raf. New Fl. N. A. 2: 62. 1836.
Annual, smooth and glabrous, fleshy; stem erect, usually branched, 4'-16' high, the branches ascending. Leaves linear, thick, 1/2' - 1' long, 1" wide or less, obtuse, spreading, the upermost very small and subulate, scarcely longer than the pedicels; pedicels in flower shorter than or equalling the calyx, about twice as long in fruit; calyx-teeth broad, short, obtuse; corolla rose purple, 5"-9" long, glabrous, the limb about as broad; anther-sacs mucronulate at the base; capsule globose-oblong, 2"-3" high.
Gerardia tenuifolia Vahl, Symb. Bot. 3: 79. 1794. A. tenuifolia Raf. New Fl. N. A. 2: 64. 1836.
Annual, glabrous; stem very slender, panicu-lately branched, 6'-24' high, the branches spreading or ascending. Leaves very narrowly linear, flat, acute, 1/2'-1 1/4' long, 1/4"- 1" wide, spreading; pedicels mostly equalling or longer than the flowers; calyx campanulate, its teeth very short, pointed; corolla light purple, spotted, rarely white, 6"-9" long, vertically compressed when fully expanded, minutely puberulent, or glabrous; anther-sacs mucronate at the base; capsule globose or slightly obovoid, 2"- 2 1/2" in diameter, longer than the calyx.
Gerardia tenuifolia var. macrophylla Benth. Comp. Bot. Mag. 1: 209. 1835. Not G. macrophylla Benth.
Gerardia Besseyana Britton, Mem. Torr. Club 5: 295. 1894.
Annual; stem glabrous, rather stout, strict, branched, 1°- 2° high, the branches ascending or nearly erect. Leaves linear, 1' - 2' long, 1"- 2" wide, scabrous, acute, ascending; pedicels ascending, longer than the flowers; calyx campanulate, its teeth triangular-subulate, one-third to one-half the length of the tube; corolla purple, 5"-6" long; capsule globose, 2"-3" in diameter, exceeding the calyx.
On dry hills and prairies, Ontario to South Dakota, Colorado, Louisiana and Kansas. Recorded east to Connecticut. July-Sept.