Physalis philadelphica Lam.
Family: Solanaceae
Mexican Ground-Cherry,  more...
Physalis philadelphica image
Henriette Kress  
Landrum et al. 2013

Duration: Annual

Nativity: Non-Native

Lifeform: Forb/Herb

General: Herbaceous annuals to 45cm; stems and branches spreading and ascending, sparsely pubescent on leaf edges and veins, more densely pubescent on new growth, hairs up to 1 mm long, not glandular, sometimes clearly multicellular.

Leaves: Alternate, ovate, lanceolate or elliptic, 2-6 cm long, 1-3.4 cm wide, 1.7-2.4 times as long as wide; base acute, often obliquely so; apex acute to acuminate; margins dentate or serrate.

Flowers: Peduncle 0.5-1.2 cm long; calyx 0.2-0.6 cm long in flower, the lobes about as long as the tube; corolla yellow, with a purplish darkened center, campanulate, up to 1.5 cm long; anthers purplish tinged.

Fruits: Fruiting calyx ovoid to subglobose, to ca. 2.5 cm long and ca. 2 cm wide; berry up to 2.5 cm in diameter; seeds lenticular, 2-2.5 mm wide.

Ecology: Found in disturbed areas, grasslands; 3600-4900 ft (1100-1500 m); flowering and fruiting Aug-Sep.

Distribution: Widespread in U.S., Can. and Mex., widely cultivated.

Notes: Most similar to P. angulata but has a larger flower (0.4-1cm wide in angulata). Also similar to P. pubescens and neomexicana but differs by a few characters, primarily its sparsely hairy to semi glabrous stems.

Ethnobotany: This is the cultivated -tomatillo- from Mexico. It is unclear if populations in Arizona are native or escaped. Cultivated plants should be expected to be more robust that those described here.

Synonyms: None

Editor: FSCoburn 2014

Etymology: Physalis comes from the Greek physalis, "a bladder or bubble," because of the inflated calyx. The epithet philadelphica means -of Philadelphia-.

Branching annual 2-6 dm, nearly glabrous except on the younger parts, where it is strigillose, often in 2 strips, with decurved hairs; lvs ovate or rhombic, 2-6 cm, entire to sinuate-toothed; pedicels at anthesis 3-5 mm, scarcely longer in fr; cor 7-15 mm, with dark center; anthers blue-purple, mostly 2.5-3.5 mm, becoming twisted or contorted; fruiting cal rounded at base; berry edible, purplish, viscid, nearly filling the cal; 2n=24. Native of Mexico, occasionally escaped from cult. in our range. (P. ixocarpa)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.

Physalis philadelphica image
Henriette Kress  
Physalis philadelphica image
Henriette Kress  
Physalis philadelphica image
Henriette Kress  
Physalis philadelphica image
Jose Hernandez  
Physalis philadelphica image