Opuntia macrorhiza Engelm. [ Opuntia tortispina Engelm. & J.M. Bigelow]
Britton, N.L., Rose, J.N., Cactaceae (1919-1923)
Cact.

vol. 1 (1919)
t. 15
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name recognized:
720490 Opuntia macrorhiza Engelm.

name cited:
720921 Opuntia tortispina Engelm. & J.M. Bigelow

drawing: M.E. Eaton
family: Cactaceae
subfamily: Opuntioideae
epithet cited: tortispinus,-a,-um

epithet recognized: macrorhizus,-a,-um

Illustration contributed by:
Missouri Botanical Garden, St. Louis, U.S.A.
link to this page:
http://www.plantillustrations.org/illustration.php?id_illustration=50958
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synonyms:
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12 720490 Opuntia macrorhiza Engelm. Engelm. [Opuntia tortispina Engelm. & J.M. Bigelow]
N.L. Britton, J.N. Rose, Cact., vol. 1 : t. 15 (1919) [M.E. Eaton]