Frailea knippeliana Britton & Rose

, Cactaceae (Britton & Rose) 3: 211 (1922). BHL
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External links to taxonomic opinions:
POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:105541-2
Publication
Cactaceae, The (Britton & Rose). Descriptions and illustrations of plants of the cactus family
Collation
3: 211
Family as entered in IPNI
Cactaceae

Links

Nomenclatural link
Echinocactus knippelianus Quehl, Monatsschr. Kakteenk. 12: 9 (1902).
Same citation as
Frailea knippeliana Britton & Rose, Cactaceae (Britton & Rose) 3: 211 (1922).