Flora of the Southeastern United States

Crataegus collina Chapman. Common name: Hillside Hawthorn. Phenology: Mar-Apr; Aug-Oct. Habitat: Hardwood and pine-oak forests of hills and valleys, brushy lands. C. collina occupies sub-xeric uplands in the Appalachian Region and is tolerant of lowland floodplains in GA, AL, TN. Distribution: Sw. VA west to KS, south to c. GA, s. AL, c. MS, AR and OK.

ID notes: It is one of the earliest hawthorns to flower in spring.

Origin/Endemic status: Endemic

Taxonomy Comments: Allied to C. punctata Jacquin, but more southern in range and at lower elevations. The fruits rarely reach 12 mm in diameter, whereas those of C. punctata often range from 12-23 mm. This species is variable in leaf and vestiture, some local genotypes being conspicuously pubescent. Several varieties have been described for the western range of the species, considered in synonymy here.

Synonymy ⓘ: = S, Tn, W, Lance (2014); > Crataegus amnicola Beadle — S13; > Crataegus collina Chapm. — Il, S13; > Crataegus collina Chapm. var. collicola (Ashe) E.J.Palmer — F, G; > Crataegus collina Chapm. var. collina — F, FNA9, G; > Crataegus ingens Beadle — S13; < Crataegus punctata Jacq. — Ar, C, RAB. Basionym: Crataegus collina Chapm. 1892

Links to other floras: > Crataegus collina var. collina - FNA9

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Heliophily ⓘ: 6