Table 2.

Neglected and underutilized species successfully introduced to several countries as alternative crops for drought tolerance.

Crop	Crop Origin	Status	Countries with Registered Varieties
Quinoa (Chenopodium quinoa Willd.)	Andean region [72]	Introduced	The Netherlands (5), Denmark (4), France (1), Canada(4) USA (3), Australia (2), Germany (1), Ukraine (2) [73,74]
Amaranth (Amaranthus hypochondriacus, Amaranthus cruentus L., and Amaranthus caudatus L.)	High tropical and subtropical lands of America [75]	Introduced	Russian (7 Ah, 8 Ac, 6 Acr), Germany (1 Ah, 1 Acr), Slovakia (1 Ac, 2 Acr), The Netherlands (1 Ac), Romania (1 Ac, 1 Acr), Ukraine (1 Ac), Poland (2 Acr), New Zealand (1 Acr), Czech Republic (1 Acr) [74]
Millet (Pennisetum glaucum L.)	Africa [76]	Introduced	Brazil (13), Russia (5), USA (3), Ukraine (1), Mexico (3), Australia (1) [74]
Buckwheat (Fagopyrum sp.)	China [77]	Introduced	Ukraine (19), Denmark (10), USA (4,) Moldova (3), Canada (2), Australia (1) [74]
Cowpea (Vigna unguiculata)	Southern Africa [78]	Introduced	Brazil (13), Australia (8), China (7), Turkey (7), Moldova (6), Korea (4), Romania (3), Bulgaria (2), Poland (1), Portugal (1) [74]
Sweetpotato (Ipomoea batatas)	Central America and north of South America [79]	Introduced	Switzerland (3), Israel (11,) Romania (2), Slovenia (8), Ukraine (4), USA (89), South Africa (29), China (42) [74]
Andean Lupin (Lupinus mutabilis)	Andean region [80]	Introduced	The Netherlands (1), Czech Republic (1), Germany (1) [74]

In parentheses is the number of registered varieties in each country. Ah: Amaranthus hypochondriacus, Ac: Amaranthus caudatus, and Acr: Amaranthus cruentus.