Pelecyphora missouriensis (Sweet) D. Aquino & Daniel Sánchez. Ball Cactus, Beehive Cactus, Missouri Pincushion Cactus. Phen: May-Jul. Hab: Grasslands. Dist: ND west to MT, south to se. and c. TX, nw. NM, and n. AZ.

Origin/Endemic status: Native

Synonymy ⓘ: = Sánchez et al (2022); = Coryphantha missouriensis (Sweet) Britton & Rose – FNA4; = Escobaria missouriensis – Il, K3, K4, Mo2; = n/a – F; > Cactus missouriensis (Sweet) Kuntze – S13; > Cactus robustior Small – S13; > Cactus similis (Engelm.) Small – S13; > Coryphantha missouriensis (Sweet) Britton & Rose var. caespitosa (Engelm.) L.D.Benson – GrPl, Tx; > Coryphantha missousiensis (Sweet) Britton & Rose var. missouriensis – C, GrPl, Tx; > Coryphantha missouriensis (Sweet) Britton & Rose var. robustior (Engelm.) L.D.Benson – Tx; > Escobaria missouriensis var. robustior (Engelm.) D.R.Hunt – NcTx; > Escobaria missouriensis var. similis (Engelm.) N.P.Taylor – NcTx; > Mammillaria roseiflora (Lahman) Weniger – Weniger (1984); > Mammillaria similis Engelm. – Weniger (1984)

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Heliophily ⓘ: 9