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FNA | Family List | FNA Vol. 14 | Solanaceae | Lycium

7. Lycium andersonii A. Gray, Proc. Amer. Acad. Arts. 7: 388. 1868.

Water jacket, redberry desert-thorn

Lycium andersonii var. deserticola (C. L. Hitchcock) Jepson; L. andersonii var. pubescens S. Watson; L. andersonii var. wrightii A. Gray

Shrubs erect, 0.5–3 m; bark silvery tan to dark brown; stems glabrous or pubescent. Leaves: blade spatulate, 3–35 × 1–8 mm, fleshy to succulent, sometimes glaucous, surfaces gla­brous or pubescent. Inflorescences 2-flowered fascicles or solitary flowers. Pedicels 1–10 mm. Flowers 4–5-merous; calyx cupulate, 1.5–3 mm, lobe lengths 0.25 times tube; corolla white to light purple, narrowly tubular-funnelform, 4–16 mm, lobes 1–2.5 mm, mar­gins glabrous or sparsely ciliate; stamens included or exserted. Berries orange to red, ovoid, 3–8 mm, fleshy. Seeds 50+. 2n = 24.

Flowering Feb–May. Desert washes, flats, grasslands; 100–1900 m; Ariz., Calif., Nev., N.Mex., Utah; Mexico (Baja California, Baja California Sur, Sinaloa, Sonora).

F. Chiang Cabrera (1981) recognized three varieties of Lycium andersonii (var. andersonii, var. deserticola, var. wrightii) in the flora area; these varieties are based on corolla lobe number (four or five), flower size, and leaf size and shape. Distinctiveness of these varieties is unclear; these characters generally vary within most species and indeed within individuals.


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