Capsicum annuum Varieties

Capsicum annuum is an accepted species in Kew’s Plants of the World Online and the largest everyday browse lane in this library. It includes blocky sweet bells, broad poblanos, jalapenos, long cayennes, wrinkled shishitos, New Mexico chiles, paprika types, ornamentals, and small wild relatives. The name annuum does not mean every plant must live for one year. It identifies the species, while climate and cultivation determine how long a plant survives.

Use the species name as a botanical filter, then choose a cultivar by pod structure, heat, flavor, and kitchen job. A bell pepper and a cayenne pepper share a species but do not substitute cleanly for one another.

Archaeological and genomic research published in PNAS places the domestication history of C. annuum in Mexico, followed by diversification and movement through human cultivation. That history explains why one species now contains landraces, open-pollinated cultivars, modern hybrids, spice peppers, fresh-market bells, and ornamental selections.

USDA GRIN provides the taxonomic record. Cultivar names and performance claims still need their own breeder or institutional source. The collection therefore keeps species identity separate from claims about a particular named pepper.

New Mexico State University’s Chile Pepper Institute documents the importance of New Mexican breeding programs. NuMex Heritage 6-4 represents a named New Mexico selection with a specific institutional history, not a generic synonym for every long green chile. Similar regional selection shaped paprika peppers, Japanese shishitos, Mexican poblanos and jalapenos, and European frying types.

Growing advice must follow the cultivar and local season. Most annuum peppers need warm soil, full sun, frost-free conditions, and even moisture, but plant size, maturity time, support needs, and disease packages vary. Use the profile’s breeder or extension evidence before choosing a container or planting date.

Start with wall thickness and sold form. Choose bell or poblano when structure matters, jalapeno for a compact fresh or pickling pepper, shishito for quick whole-pan cooking, cayenne for drying and powder, and a documented New Mexico cultivar when roasted green-chile character matters. Chiltepin belongs in a different lane: tiny fruits, concentrated heat, and a distinct wild-pepper context.

The curated group below shows seven recognizable forms in a fixed order. The complete inventory remains the source for every published Capsicum annuum profile, including regional cultivars and ornamentals that do not belong in a short representative set.