Crataegus reverchonii Sargent. Reverchon Hawthorn. Phen: Apr-May; Sep-Oct. Hab: Scrubland, prairie borders, streamsides. Dist: C. and e. TX, OK, se KS, sw MO, w AR, nw. LA.

Origin/Endemic status: Endemic

Taxonomy Comments: A broad view of this species incorporates a range of variation in stamen counts (10-20) and anther color (whitish to reddish), but the small leaf size (15-35 mm) and presence of 3-5 styles and pyrenes are more consistent. Intermediates with sympatric members of the Crus-galli series are suspected, and may account for some of the unresolved taxonomy.

Synonymy: = Tx; = Crataegus reverchonii Sarg. var. reverchonii – FNA9; > Crataegus discolor Sarg.; > Crataegus reverchonii Sarg. var. reverchonii – Lance (2014), Phipps, O’Kennon, & Lance (2003); > Crataegus reverchonii Sarg. var. stevensiana (Sarg.) Palmer – Lance (2014), Phipps, O’Kennon, & Lance (2003); > Crataegus rubrisepala Sarg.; > Crataegus stevensiana Sarg.

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