The other Capsicum species in the USDA germplasm repository include: C. chinense, C. baccatum, C. frutescens, C. pubescens, C. cardenasii, C. chacoense, C. flexuosum, C. eximium, C. rhomboideum, C. galapagoense, and C.
[9] Heirloom varieties are typically those that have been selected and grown historically with seeds saved every year, and are still maintained today in similar fashion, such as the blocky-type California Wonder.
Open-pollinated varieties are those that are maintained without strict barriers to prevent outcrossing and then seed is collected at and stored from each harvest such as the lamuyo-type Marconi Yellow.
The new hybrid variety typically is more vigorous than either of the two parents contributing to traits such as higher yield.
[9] Inter-specific crossing may result in a hybrid of diminished fertility due to specific genetic incompatibilities.
This method is used to produce hybrid Capsicum cultivars such as the blocky types Double-Up and Orange Blaze.
[11] Its fruit forms are varied, from large to small, sweet to sour, and very hot/pungent to bland.
Nikolaus Joseph von Jacquin (1727–1817), a Dutch botanist, named the species in that way in 1776 because he believed they originated in China.
Capsicum pubescens is among the oldest of domesticated peppers, and was grown as long as 5,000 years ago.
[citation needed] It is probably related to undomesticated plants that still grow in South America (C. cardenasii, C. eximium, and others).