About 23, see text Jaborosa is a genus of flowering plants in the family Solanaceae, the nightshades.

[3] Most Jaborosa are rhizomatous perennial herbs except J. bergii and J. sativa, which are annual or biennial.

[4] Like plants in several other Solanaceae genera, many Jaborosa species contain steroid-derived compounds called withanolides.

Some withanolides are phytotoxic, having effects on other plants such as inhibiting germination and radicle growth.

[5] Some have antifeedant effects, deterring insects such as mealworms (Tenebrio molitor),[2] the Mediterranean fruit fly (Ceratitis capitata),[1] and the African cotton leafworm (Spodoptera littoralis)[6] from consuming the plant.