Physalis angulata
| Cutleaf ground cherry (Physalis angulata) | |
|---|---|
| Scientific name | Physalis angulata |
| Common name | Cutleaf ground cherry |
| Genus | Physalis |
| Family | Solanaceae |
| Order | Solanales |
| Growth form | Annual herb with a taproot; 10–200 cm tall |
| Native range | Tropical America |
| Habitat and climate | Moist, fertile, well-drained ground; full sun or light shade |
| Propagation | Seed |
| Fruit | Edible fruit |
Physalis angulata, commonly called cutleaf ground cherry, is an annual fruiting herb in the nightshade family, Solanaceae. It is accepted in the genus Physalis and order Solanales.[1] The species is native to tropical America and is now widely introduced. It develops a taproot and spreading branches, with reported plants ranging from 10 to 200 cm tall.[2]
Description[edit | edit source]
The plant is an erect annual with a taproot and spreading branches. The documented height range is broad, from 10 to 200 cm, so spacing and support should follow the actual vigor of the plant in its site rather than a fixed mature-size expectation.[2]
Cultivation[edit | edit source]
In its tropical-American range, Physalis angulata is associated with warm conditions, but it can tolerate light frost and grows poorly under excessive heat.[2] Moisture, drainage and exposure should therefore be balanced rather than pushed toward either persistent saturation or severe drought.
Soil and water[edit | edit source]
Use fertile soil that holds moisture while draining freely. A pot experiment kept plants for 40 days at 100%, 80%, 60%, 40% and 20% of pot field capacity; severe deficit altered water relations, carbon assimilation, stomatal conductance and transpiration. Those results describe physiological responses in pots, not a field irrigation threshold, so steady moisture with good drainage is a safer cultivation starting point than deliberate drought.[2][3]
Sun and humidity[edit | edit source]
Full sun or light shade are both documented suitable exposures. In hot climates, light shade during the harshest part of the day is a reasonable way to limit heat load because poor growth at high temperatures has been reported; maintain airflow rather than placing the plant in stagnant, saturated air.[2]
Seasonal changes[edit | edit source]
The species is annual. In warm cultivation, plan establishment while temperatures support active growth, and adjust watering when heat increases because excessive heat can reduce growth. Light frost tolerance does not make it a dependable frost-season perennial; protect young plants from frost and expect the crop cycle to be climate-dependent.[2]
Propagation[edit | edit source]
Propagation is by seed. A species-specific germination study tested fruit and calyx maturity, temperature, substrate and light in four randomized experiments, each with four replicates of 50 seeds. In that laboratory work, yellow calyx and fruit maturity gave better physiological potential, and the germination test used seeds between paper towels at 35 °C in darkness.[4] The 35 °C result is a laboratory test condition, not a universal outdoor sowing schedule. Seeds in that study were extracted, washed, dried for 24 hours and stored at about 10 °C before testing.[4]
A separate species-specific study addressed calyx maturation stage and storage method in Physalis angulata seed germination, reinforcing that both harvest maturity and storage deserve attention when seed is being saved.[5]
Flowering, fruiting, and harvest[edit | edit source]
The species produces edible fruit and completes its cycle as an annual. For seed production, yellow calyx and fruit maturity was the stage associated with better physiological potential in one controlled germination study; that result should not be treated as a universal eating-ripeness rule.[2][4]
Fruit and uses[edit | edit source]
The fruit is recorded as edible and is a food-use reason to grow the species.[2] Fruit use should remain separate from medicinal claims: a review describes traditional medicinal use, but traditional use alone does not establish efficacy or safety, so no medicinal recommendation is made here.[6]
References[edit | edit source]
- ↑ [3] Leite et al., “Physiological Responses of Physalis angulata Plants to Water Deficit,” Journal of Agricultural Science 10(10), 2018.
- ↑ [4] Santiago et al., “Ecophysiological aspects of the germination of Physalis angulata L. seeds,” Revista Caatinga 36(4), 2023.