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Crataegus triflora Chapman. Common name: Threeflower Hawthorn. Phenology: Apr-May; Sep-Oct. Habitat: Wooded ravines, mesic slopes, limestone outcrops, flatwoods, prairies. Distribution: Nw. GA to n. MS, s. to s. AL, MS; disjunct populations in prairie sites of Houston Co, GA, c. LA, s. AR (possibly in se. TN?).

ID notes: Usually a multi-stemmed shrub 1-3 m tall, rarely to 6 m. Crataegus triflora produces some of the largest flowers in the genus (to 3 cm diameter), though frequently only 3 flowers are borne per inflorescence; occasional vigorous plants may bear 4-6 flowers per inflorescence.

Origin/Endemic status: Endemic

Taxonomy Comments: Typically this taxon exhibits 30 or more stamens per flower, but more evaluation of the species is needed. Ten-stamened forms in GA and 20-stamened forms in MS may merit additional taxonomic recognition. The related Crataegus austromontana Beadle may be one local genotype or hybrid having 10 stamens that has been fully described.

Synonymy : = W, Lance (2014); = n/a — RAB; > Crataegus austromontana Beadle — FNA9, S13, Tn, Phipps, Lance, & Dvorsky (2006); > Crataegus triflora Chapm. — Ar, FNA9, S13, Tn, Phipps, Lance, & Dvorsky (2006). Basionym: Crataegus triflora Chapm. 1892

Links to other floras: > Crataegus triflora - FNA9; > Crataegus austromontana - FNA9

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Heliophily : 6

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image of plant© Ron Lance | Original Image ⭷
image of plant© Ron Lance | Original Image ⭷
image of plant© Ron Lance | Original Image ⭷
image of plant© Ron Lance | Original Image ⭷
image of plant© Ron Lance | Original Image ⭷
image of plant© Ron Lance | Original Image ⭷

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Horticultural Information

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