Echinomastus unguispinus (Engelm.) Britton & Rose [ Echinocactus unguispinus Engelm.]
Engelmann, G., Plates to the Cactaceae of the Mexican boundary (1857-1859)
Rep. U.S. Mex. Bound.

t. 35
recognized name:
370985 Echinomastus unguispinus (Engelm.) Britton & Rose
recognized name (basionym):
369705 Echinocactus unguispinus Engelm.
cited name:
369705 Echinocactus unguispinus Engelm.
drawing: P. Roetter
family: Cactaceae
subfamily: Cactoideae
tribe: Cacteae
epithet: unguispinus,-a,-um

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homotypic synonyms:
Echinocactus unguispinus Engelm.; Neolloydia unguispina (Engelm.) L.D. Benson; Pediocactus unguispinus (Engelm.) Halda; Sclerocactus unguispinus (Engelm.) N.P. Taylor; Thelocactus unguispinus (Engelm.) G.D. Rowley;
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6 370985 Echinomastus unguispinus (Engelm.) Britton & Rose [125 369705 Echinocactus unguispinus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 35 () [P. Roetter]