| 2 | Cultivated | Asia-Temperate | China | China | Xizang Zizhiqu | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 2 | Cultivated | Asia-Temperate | China | China | Yunnan Sheng | | Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). |
| 2 | Cultivated | Asia-Temperate | Eastern Asia | Taiwan | | | Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6 |
| 2 | Cultivated | Asia-Tropical | Indian Subcontinent | Bhutan | | | Grierson, A. J. C. & D. J. Long. 1984-. Flora of Bhutan including a record of plants from Sikkim. |
| 2 | Cultivated | Asia-Tropical | Indian Subcontinent | India | | n. | Grierson, A. J. C. & D. J. Long. 1984-. Flora of Bhutan including a record of plants from Sikkim. |
| 2 | Cultivated | Asia-Tropical | Indian Subcontinent | Nepal | | | Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6 |
| 2 | Cultivated | Asia-Tropical | Malesia | Malaysia | | | Siemonsma, J. S. & Kasem Piluek, eds. 1993. Vegetables. In: Faridah Hanum, I. & L. J. G. van der Maesen, eds., Plant Resources of South-East Asia (PROSEA) 8:288. |
| 2 | Cultivated | Europe | Southeastern Europe | Italy | Lombardia | | Zuccolo, M. et al. 2023. Characterization of an Italian landrace of Cyclanthera pedata (L.) Schrad. of herbal and horticultural interest. Genet. Resources Crop Evol. 70:1455-1469. DOI: 10.1007/s10722-022-01514-3. |
| 2 | Cultivated | Southern America | Central America | Costa Rica | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 2 | Cultivated | Southern America | Central America | Guatemala | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 2 | Cultivated | Southern America | Central America | Honduras | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 2 | Cultivated | Southern America | Central America | Nicaragua | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 2 | Cultivated | Southern America | Central America | Panama | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 2 | Cultivated | Southern America | Northern South America | Venezuela | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 2 | Cultivated | Southern America | Southern South America | Argentina | Jujuy | | Instituto de Botánica Darwinion. 2008. Flora del Conosur. Catálogo de las plantas vasculares. |
| 2 | Cultivated | Southern America | Southern South America | Argentina | Salta | | Instituto de Botánica Darwinion. 2008. Flora del Conosur. Catálogo de las plantas vasculares. |
| 2 | Cultivated | Southern America | Western South America | Bolivia | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 2 | Cultivated | Southern America | Western South America | Colombia | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 2 | Cultivated | Southern America | Western South America | Ecuador | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 2 | Cultivated | Southern America | Western South America | Peru | | | Brako, L. & J. L. Zarucchi. 1993. Catalogue of the flowering plants and gymnosperms of Peru. Monogr. Syst. Bot. Missouri Bot. Gard. 45 380. |
| 6 | Other | | | | | probable origin in Andean South America | Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6 |