A new species of Machaeranthera section Psilactis [M. arizonica sp. nov.]
Jackson, Raymond C. (Raymond Carl), 1928-2008 Johnson, R. Roy (Raymond Roy), 1932-
Article
1967
Rhodora
69
476--480
BioStor
[Cambridge, Mass., etc.] New England Botanical Club [etc.]
BioStor: https://biostor.org/reference/138934
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