Solanum caripense
| Tzimbalo (Solanum caripense) | |
|---|---|
| Scientific name | Solanum caripense [1] |
| Common names | Tzimbalo |
| Genus | Solanum |
| Family | Solanaceae |
| Order | Solanales |
| Growth form | Climbing or sprawling perennial, reported to reach about 2 m or more [2] |
| Native range | Andean South America and adjacent Central America, including Peru, Ecuador, Colombia, Venezuela, and Costa Rica [2] |
| Climate/site | Thickets, wooded slopes, streams, cliff bases, and open slopes from about 800–3,800 m [2] |
| Propagation | Seed, half-ripe cuttings, and a documented controlled in-vitro protocol [2][3] |
| Fruit | Yellow-green, violet-striped, juicy and sweetish, with little flesh and many seeds; reported to about 4 cm [2][3] |
Solanum caripense, commonly called tzimbalo, is a high-elevation Andean perennial with climbing or sprawling growth. Its rounded yellow-green fruits are marked with violet stripes and are described as juicy and sweetish, although they contain little flesh and many seeds. [2][3]
Description[edit | edit source]
The plant is recorded from Peru, Ecuador, Colombia, Venezuela, and Costa Rica, in habitats that include thickets, wooded slopes, stream margins, cliff bases, and open slopes at approximately 800–3,800 m. It may climb or sprawl and can reach about 2 m or more. [2]
The fruit is a globose berry described as yellow-green with violet longitudinal stripes. A species account gives a size of up to about 40 mm, while the Ecuadorian propagation paper describes berries up to about 4 cm long; the dimensions are best treated as an approximate upper size rather than a fixed harvest standard. The flesh is juicy and sweetish, but relatively scant beside the numerous seeds. [2][3]
S. caripense is also used in breeding research as a wild relative of pepino, tomato, and potato. A mapping study examined a diploid, non-tuberizing accession and reported a late-blight-resistance phenotype in one parent; that result concerns the tested accession and does not establish a disease-resistant cultivar or universal species trait. [4][5]
Cultivation[edit | edit source]
Soil and water[edit | edit source]
The species occurs across slopes, stream-associated sites, cliff bases, and open ground in the highlands. A habitat-based cultivation inference is to use a free-draining medium with enough organic matter to hold even moisture, while avoiding a waterlogged root zone. Irrigation should be adjusted to container size, temperature, wind, and active growth rather than copied from a single site record. [2][3]
Sun and humidity[edit | edit source]
The native range includes both wooded and open habitats, so exposure is likely to vary with site. Begin with bright light and protection from abrupt heat, drying wind, or intense reflected sun; acclimate a vigorous plant gradually if moving it into stronger exposure. This is a habitat-based cultivation inference, not a measured full-sun limit. The propagation study's Taniloma collection site was at 2,717 m with a mean annual temperature of 14.5 °C and relative humidity of 70%, conditions that illustrate one source population rather than a universal climate requirement. [2][3]
Seasonal changes[edit | edit source]
A high-elevation perennial can encounter pronounced changes in coolness, rainfall, and drying even where it remains evergreen. Keep the root zone evenly supplied during active growth, reduce watering when cool conditions slow growth, and restore moisture as growth resumes; never allow a container to remain stagnant after heavy rain. This seasonal watering pattern is a cultivation inference from the plant's varied Andean habitats, not a species-specific irrigation schedule. [2][3]
Propagation[edit | edit source]
Seed and half-ripe cuttings are both recorded propagation routes. Fresh seed should be sown promptly because the available nursery account describes a seed protocol but does not establish long-term storage behavior. Half-ripe cuttings are reported to root within a couple of weeks; that timing is a practical account value, not a guarantee for every stock plant, season, or medium. [2]
A 2016 Ecuadorian laboratory study used seed from wild fruit collected at Taniloma, Cotopaxi, at 2,717 m. Under its tested disinfection treatment, germination reached 92% after 42 days; shoot multiplication and ex-vitro rooting were then evaluated under controlled conditions, with all tested indole-3-butyric-acid treatments reaching 100% rooting establishment in peat after 42 days. These figures describe a replicated in-vitro and ex-vitro protocol, not ordinary outdoor nursery success, and the hormone concentrations should not be treated as a field schedule. [3]
Flowering, fruiting, and harvest[edit | edit source]
The available species account describes ripe fruit as yellow-green with violet stripes, juicy, sweetish, and seed-rich. Harvest fruit only when its maturity is clear from the plant and fruit condition; the packet does not provide a species-specific color-change sequence or a tested storage life. [2][3]
An Acta Horticulturae abstract describes a diploid, self-incompatible S. caripense accession used in a genetic-mapping cross. If cultivated plants show the same compatibility behavior, growing genetically distinct plants together and allowing normal flower visitation is a reasonable pollination trial, but the abstract does not establish a universal pollination rule for every accession. [4]
Fruit and uses[edit | edit source]
The fruit is described as edible and suitable for eating when ripe. Its recorded sensory profile is juicy and sweetish, with relatively little flesh and many seeds, and its yellow-green skin carries violet longitudinal stripes. [2][3]
The ripe-fruit description does not establish safety for unripe fruit or for leaves, stems, roots, or other plant parts. Keep those categories separate from the reported fruit use, and do not extend the edible description to another Solanum species or to an unidentified plant.
References[edit | edit source]
- ↑ [3] Segovia and Suquillo, “Propagación in vitro de tzímbalo (Solanum caripense Dunal),” Revista Tecnológica ESPOL 29(2), 2016.