Field number : PP 78
Collector : Pavel Pavlíček
Species : Echinomastus johnsonii 
Locality : USA : Arizona (Virgin River Gorge, Mohave Co.) * Geocode
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Taxonomy of the Cactaceae - Joël Lodé = Echinomastus johnsonii
New Cactus Lexicon - David Hunt = Sclerocactus johnsonii
The International Plant Names Index : https://www.ipni.org
Echinomastus (Britton & Rose 1922)
Echinomastus johnsonii ((Engelm.) E.M.Baxter 1935)
http://echinomastus.succulentstreasures.com
Semeurs de cactus
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