Hesperoyucca whipplei (Torr.) Trel. [ Yucca whipplei Torrey]
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Hesperoyucca whipplei (Torr.) Trel. [ Yucca whipplei Torrey] [Agavaceae]
Rev. Hort. (Paris), ser. 4, vol. 58 (58e ANNÉE - 1886): p. 63, fig. 13 (1886)