Lycium barbarum (tomato family), Elaeagnus multiflora (same genus as russian olive, and a nitrogen fixer) are both listed as the source of the wonderful fruit. Then there are nurseries that offer goji berries without identifying the genus and species.
Can anyone sort these out? I'd sure love to know without having to buy and grow them all.
He offers the traditional Chinese variety, and one native to the American SW deserts.
—Lycium chinense. (100) LYCI-12. Packet: $2.50
'CHINESE WOLFBERRY', 'KUKO', 'KO-CHI'. Purple half-inch flowers June to September,
followed by attractive scarlet 1/2 - 1" long berries, August to October. Graceful
arching shrub to 12 feet, with bright green 1 1/2 - 3" oval leaves. E. Asia. Hardy
in the North, Zone 5, and "It is a splendid sight in autumn gardens, when its
slender branches are laden with scarlet berries."—Yashiroda. These branches are
much valued in Japanese flower-arranging. Germinates in 1 - 4 weeks.
The young leaves are eaten in salads or boiled with rice as flavoring, and are
also drunk as tea. The berries are eaten and a medicinal wine is made from them.
Leaves, root and fruit are all highly valued in Chinese medicine, as "prolonging
life, improving the complexion and brightening the eye."—Pen Ts'ao.
—Lycium exsertum. (100) LYCI-22. Packet: $2.50
'WOLFBERRY'. Profuse small lavender flowers followed by abundant bright red edible
berries. Spiny shrub to 3 - 6 feet. Low deserts, Arizona and México. Very drought
resistant. The berries were eaten in great quantities by the Indians, fresh, cooked,
or dried like raisins. Good wildlife shrub.
Germinates in 2 - 6 weeks, light and GA-3 help.
Elaeagnus Multiflora is Goumi in my area; I think Gomi as well as Gumi are just common misspellings. Also called 'cherry silverberry' apparently. As noted, nitrogen fixing; great permaculture plant, commonly used in my region. Don't know how it handles very dry conditions. I like it better than Goji, but neither are super high on my list of tasty things.