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Crataegus ×dispessa Ashe. Monteer Hawthorn. Phen: May; Sept-Oct. Hab: Streamsides, brushy woodlands. Dist: MO, AR.

Origin/Endemic status: Endemic

Taxonomy Comments: Assumed of hybrid origin between a form of C. collina Chapman and a member of series Molles. Described in 1903, it is the earliest of a complex of similar hybrids subsequently named by Charles Sargent from the region of MO and AR, all apparently from a similar parental combination but each entity differing slightly, owing to different parental genotypes. Possibly all these putative hybrid taxa by Sargent (C. ×fastosa, C. ×kelloggii, C. ×latebrosa, C. ×noelensis, C. ×treleasei) could be designated as nothovarieties under C. ×dispessa.

Synonymy: > Crataegus ×dispessa Ashe – FNA9; >< Crataegus dispessa – F, Phipps, O’Kennon, & Lance (2003); > Crataegus fastosa Sarg. – Phipps, O’Kennon, & Lance (2003), Sargent (1903); > Crataegus kelloggii – FNA9, Sargent (1903); > Crataegus latebrosa – FNA9, Sargent (1911a); > Crataegus noelensis Sarg. – Sargent (1920); > Crataegus treleasei Sarg. – Sargent (1903)

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