Bot. Gaz. 30: 342. 1900.
Shrubs or trees, 50–60 dm, branches ± weeping. Stems: twigs: new growth densely tomentose, 1-year old dark gray, older gray, ± stout; thorns on twigs usually sparse or absent, ± recurved, 1-year old dark blackish gray, slender, 2–3 cm. Leaves: petiole slender, length 20–30% blade, pubescent, glandular; blade broadly oblong to cuneate, 2–3 cm (at anthesis, larger mature), ± thick, firm, base evenly tapered, lobes 0, margins crenate-serrate, veins 3–5 per side, adaxially shiny mature, apex ± flattened to slightly cuspidate, abaxial surface pubescent only on veins, adaxial glabrate young. Inflorescences 3–6-flowered; branches tomentose; bracteoles linear, margins sessile-glandular, adaxially short-pubescent. Flowers 20–25 mm diam.; hypanthium tomentose; sepals narrowly triangular, margins glandular-serrate, abaxially appressed-white-pubescent in center of laminae, edges glabrate; anthers yellow; styles 3–5. Pomes red often very glaucous on drying, suborbicular to pyriform, 10–15 mm diam., glabrate; sepals spreading; pyrenes 3–5.
Phenology: Flowering Mar–Apr; fruiting Jul–Aug.
Habitat: Open woods
Elevation: 0–200 m
Usually scarce, Crataegus alabamensis occurs in south-central Alabama and northern Florida near Tallahassee. The type location is recorded as being on clay soil near Montgomery, Alabama, a somewhat unusual habitat for this series.
Crataegus alabamensis, with its crenate-serrate leaves, resembles the larger forms of C. condigna (subser. Tenues); it is a more robust plant with much larger flowers and fruits. The type form has leaves particularly wide relative to length. The rare C. adunca has, unusually for this series, violet anthers.