Brittonia 30: 458. 1978
Plants with large taproot. Stems with hairs scattered. Leaves: stipules 3–4 mm; petiole 1/2–3/4 as long as blade; blade 2–5 cm, apex obtuse to acute, surfaces coarsely hairy, hairs stellate abaxially, simple adaxially. Pedicels slender, 1–2 cm. Flowers: calyx green-membranous, lobes apiculate; petals yellow [red basally], 5–8 mm, subequal to calyx; staminal column 3–4 mm, glabrous. Schizocarps 8–9 mm diam.; mericarp blackish. Seeds 2 mm. 2n = 16.
Phenology: Flowering spring–late fall.
Habitat: Deciduous forests, shrublands, roadsides, fencerows, disturbed habitats, sometimes in pastures and lawns
Elevation: 0–1500 m
Ariz., N.Mex., Okla., Tex., Mexico, South America (Argentina, Bolivia, Brazil, Uruguay).
While this distinctive species, with its Physalis-like inflated fruits, is thought to be native over a wide area and disjunct between southern South America and Mexico and the United States, it is most commonly found in disturbed habitats as are so many other herbaceous mallows.