This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol2", 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..
Lychnis dioica L. Sp. Pl. 437. 1753. Lychnis diurna Sibth. Fl. Oxon. 145. 1794.
Biennial, very viscid-pubescent, branching above, 1°-2° high. Basal leaves long-petioled, oblong, obtuse put pointed, the blade 2'-3' long; stem-leaves sessile or the lower short-petioled, ovate, acute, 1'-2' long, 1/2'-11/2' wide; flowers numerous in panicled cymes, red or nearly white, scentless, 9"-12" broad, dioecious, opening in the morning; calyx at first tubular, about 4" long and 2 1/2" wide, swollen in fruit to nearly globular by the ripening pod, its teeth ovate-lanceolate, acute; petals obo-vate, 2-cleft, crowned; teeth of the capsule 2-cleft, recurved.
In waste places and ballast, Nova Scotia to Ontario, New York and Virginia. Adventive from Europe. Summer. Robins. Red- or poor-robin. Bachelor's-buttons. White soapwort. Soldiers. Adder's- or Devil's-flower.
Lychnis chalcedonica L. Sp. Pl. 436. 1753.
Perennial, stem stout, erect, simple or little branched, finely pubescent or hirsute, 1o - 2 1/2o tall. Leaves ovate, ovate-lanceolate or the upper lanceolate, acute or acuminate at the apex, rounded or subcordate at the base, sessile or somewhat clasping, dark green, 2'-5' long, 6"-18" wide; flowers perfect, numerous, about 1' broad, scarlet, in one or more usually dense terminal cymes; calyx oblong in flower, becoming obovoid, its teeth triangular, acute; petals 2-cleft or laciniate; capsule borne on a stipe nearly its own length, its teeth entire.
Escaped from gardens to roadsides, Massachusetts to southern New York. Native of eastern Europe and western Asia. Flowers, in cultivation, often double. Sweet-william. None-such. Old English names, Scarlet-lightning. Cross-of-Jerusalem, Maltese- or Knight's-crocs. June-Sept.
Lychnis Flos-cuculi L. Sp. Pl. 436. 1753.
Perennial, slender, erect, 1°-2° high, freely branching, downy-pubescent below, slightly viscid above. Lower and basal leaves oblanceolate or spatulate, 2'-3' long, tapering into a broad petiole; upper leaves sessile, lanceolate or linear-lanceolate, distant, the uppermost reduced to lanceolate bracts; inflorescence paniculate; flowers pink, blue or white, 8"-12" broad; calyx at first cylindric, 3" long, 10-nerved, becoming campanulate in fruit, its teeth triangular, acute; petals cleft into 4 linear lobes, the middle pair of lobes longer; capsule globose.
In moist waste places, New Brunswick to New Jersey and Pennsylvania. Commonly cultivated. Fugitive from Europe. Crow-flower. Meadow-pink or -campion. Cuckoos. Indian-pink. Ragged Jack. Marsh-gilliflower. June-Sept.