Field number : KP 1147
Collector : Petr Kupcak
Species : Tephrocactus alexanderi 
Locality : Argentina : San Juan (Pachaco III. / just near Pachaco in left side compact rock single hill , in top / alt. 1645 m) * Geocode
Date : 2010
Notes :
mostly , nice compact flat heads till AORACANTHUS SPECIAL NATURE INTERMEDIATE NICE FORM WITH TILL 25 CM LONG BLACK CENTRALS / stem heads very flat alike typical ALEXANDERII GROUPE , but very long black HARD central spines alike typical AORACANTHUS GROUPE
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Taxonomy of the Cactaceae - Joël Lodé = Tephrocactus alexanderi
New Cactus Lexicon - David Hunt = Tephrocactus alexanderi
The International Plant Names Index : https://www.ipni.org
Tephrocactus (Lemaire 1868)
Tephrocactus alexanderi 
Semeurs de cactus
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