Echinocactus simpsonii f. minor (Engelm.) Schelle

, Handb. Kakteenkult. 202 (1907). BHL
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External links to taxonomic opinions:
POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:87734-2
Publication
Handbuch der Kakteenkultur.
Collation
202
Family as entered in IPNI
Cactaceae

Links

Nomenclatural link
Echinocactus simpsonii var. minor Engelm., Trans. Acad. Sci. St. Louis 2: 197 (1863).