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Agave utahensis Engelm. var. kaibabensis (Breitung Kaibab agave), habitJanuary 1974
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Agave utahensis Engelm. var. kaibabensis (Breitung Kaibab agave), flower stalkJanuary 1974
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Agave palmeri Engelm. (Palmer's century plant), flowersJuly 17 1959
Lamp, Herbert F.