Smith, G.F. (Gideon Francois), 1959-; Figueiredo, Estrela
(British Cactus and Succulent Society, 2011)
The Mexican Agave americana L.
subsp. americana var. expansa (Jacobi) Gentry, a
distinctive variety of the widely cultivated, blueleaved
century plant, is here recorded as having
become established in South Africa. A ...