All Floras      Advanced Search
FNA Vol. 6 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 6 | Malvaceae | Rhynchosida

1. Rhynchosida physocalyx (A. Gray) Fryxell, Brittonia. 30: 458. 1978.
[F W]

Beaked sida, buffpetal Beaked sida, buffpetal

Sida physocalyx A. Gray, Boston J. Nat. Hist. 6: 163. 1850

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.

Flowering spring–late fall. Deciduous forests, shrublands, roadsides, fencerows, disturbed habitats, sometimes in pastures and lawns; 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.


Related Objects Image Gallery 
  • Distribution Map
  • Map
  • Illustration
  • Illustration

     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |