The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

buff petal

Habit 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.

Seeds

2 mm.

Schizocarps

8–9 mm diam.;

mericarp blackish.

2n

= 16.

Rhynchosida physocalyx

Phenology Flowering spring–late fall.
Habitat Deciduous forests, shrublands, roadsides, fencerows, disturbed habitats, sometimes in pastures and lawns
Elevation 0–1500 m [0–4900 ft]
Discussion

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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Distribution
from FNA
AZ; NM; OK; TX; Mexico; South America (Argentina, Bolivia, Brazil, Uruguay)
[WildflowerSearch map]
[BONAP county map]
Parent taxa Malvaceae > subfam. Malvoideae > Rhynchosida
Synonyms Sida physocalyx
Name authority (A. Gray) Fryxell: Brittonia 30: 458. (1978)
Source Flora of North America vol. 6, p. 310.
Web links