Crataegus scabrida


Rhodora 3: 29. 1901.

Common names: Rough hawthorn aubépine scabride
Synonyms: Crataegus brainerdii var. scabrida (Sargent) Eggleston
Treatment appears in FNA Volume 9. Treatment on page 523. Mentioned on page 522, 524, 637.

Shrubs, 30–50 dm. Stems: twigs: new growth reddish early, glabrous, 1-year old deep tan, 2-years old tan to deep reddish brown, older dull gray; thorns on twigs at 1-year old shiny, dark brown to nearly black, stout or slender, 4–6 cm. Leaves: petiole slender, length 40–60% blade, sparsely pubescent or glabrous, eglandular or sessile-glandular; blade short-ovate to ovate, broadly elliptic to narrowly rhombic, or ± trullate, 3–8 cm, base rounded to cuneate, lobes 3–5 per side, margins serrate, veins 5–7(or 8) per side, apex acute, abaxial surface glabrous, adaxial sparsely to densely appressed-pubescent young, glabrescent. Inflorescences 6–10-flowered; branches glabrous or villous. Flowers 15–18 mm diam.; hypanthium glabrous or pubescent; sepals narrowly triangular, margins subentire or glandular-serrate; stamens 7 or 8(–10), anthers pink; styles 3 or 4. Pomes reddish or orange-red, suborbicular, 6–9 mm diam., pruinose, glabrous or slightly pubescent; sepals spreading to ± erose; pyrenes 2–4, sides often pitted. 2n = 51.


V9 885-distribution-map.jpg

N.B., N.S., Ont., Que., Conn., Maine, Mass., Mich., N.H., N.Y., Va., Vt., Wis.


Varieties 4 (4 in the flora).

Crataegus scabrida is variable in leaf shape and size, as well as in pubescence of adaxial leaf surfaces and pedicels. The species falls into four reasonably well-marked varieties, only the first two of which are frequent. The range of the species as a whole is somewhat poorly documented because of frequent incorrect identification.

Selected References



1 Inflorescence branches glabrous > 2
1 Inflorescence branches villous > 3
2 Leaf blades ovate to narrowly rhombic, 4–7 cm. Crataegus scabrida var. scabrida
2 Leaf blades broadly elliptic, 3–5 cm. Crataegus scabrida var. cyclophylla
3 Leaf blades trullate or broadly trullate, 5–8 cm. Crataegus scabrida var. asperifolia
3 Leaf blades short-ovate to broadly elliptic, 4 cm. Crataegus scabrida var. egglestonii
... more about "Crataegus scabrida"
James B. Phipps +
Sargent +
Crataegus sect. Anomalae +
Rough hawthorn +  and aubépine scabride +
N.B. +, N.S. +, Ont. +, Que. +, Conn. +, Maine +, Mass. +, Mich. +, N.H. +, N.Y. +, Va. +, Vt. +  and Wis. +
Crataegus brainerdii var. scabrida +
Crataegus scabrida +
Crataegus (sect. Macracanthae) ser. Anomalae +
species +