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..
Perennial from a deep rootstock, tall, erect, 2 1/2°-5° high; stem angled, dichotomously branched, glabrous, or sometimes slightly pubescent with sparse and short hairs on the upper parts; blades ovate to ovate-lanceolate, often very oblique at the base and more or less acuminate, entire or repand-denticulate, 2 1/2'-4' long, on petioles 1 1/2'-2 1/2 long, often in pairs; peduncles slender, 5"-10" long, generally longer than the flower; calyx glabrous, or minutely ciliolate, lobes ovate-lanceolate or trangular, sometmes broadly ovate and unequal, generally equalling the tube; corolla yellow or greenish yellow with purplish throat, 3/4'-1' in diameter; anthers tinged with purple; fruiting calyx at first somewhat 10-angled and sunken at the base, at last often filled with or burst by the large red or purple berry.
Ontario and Rhode Island to Georgia, Minnesota, Kentucky and Colorado. July-Sept.
Physalis longifolia Nutt. Trans. Am. Phil. Soc. (II.) 5: 193. 1833-37.
Perennial from a thick rootstock; stem in the common form stout and tall, 1 1/2°-3° high, slightly angled, branched above, the branches strict, glabrous. Leaves lanceolate, oblanceolate, or linear, tapering into a short stout petiole 5"-10" long, subentire or repand; peduncles 5"-10" long, in fruit often recurved; calyx generally glabrous, its lobes triangular-lanceolate, about the length of the tube; corolla 6"-10" in diameter, yellow with a dark, commonly brownish center; anthers yellow, tinged with purple; fruiting calyx ovoid, about 1 1/4' long, not sunken at the base; berry yellow, the lower portion and the stipe glutinous.
In rich soil, Iowa to South Dakota, Montana, Arkansas, Utah and Mexico. July-Sept.
Perennial; rootstock rather thick and fleshy; stem erect, 11/2°-3° high, comparatively slender, angled, perfectly glabrous, or the upper parts sparingly pubescent with very short hairs. Leaves large, thin, 11/2'-3 1/2' long, 1'-2' wide, the lower obtuse, the upper acute or acuminate; petioles slender, 10"-20" long; peduncles 5"-8" long, erect, in fruit reflexed; calyx smooth, its lobes ovate-triangular or broadly lanceolate, generally a little shorter than the tube; corolla yellow with a dark center, about 10" in diameter; anthers generally yellow, sometimes tinged with purple; fruiting calyx large, 1 1/4'-1 1/2' long, 1'-1 1/4' in diameter, pyramidal to ovoid-conic, indistinctly 10-angled, deeply sunken at the base; berry small, in the center of the calyx.
In rich soil, Kansas and Arkansas to Texas. May-July. Rare.