Rosa carolina subsp. subserrulata

(Rydberg) W. H. Lewis

Novon 18: 195. 2008.

EndemicIllustrated
Basionym: Rosa subserrulata Rydberg in N. L. Britton et al., N. Amer. Fl. 22: 500. 1918
Synonyms: R. palmeri Rydberg R. rudiuscula Greene R. texarkana Rydberg
Treatment appears in FNA Volume 9. Treatment on page 102. Mentioned on page 101.

Stems erect, robust; infrastipular prickles subulate or stout, mixed with dense, shorter internodal prickles, aciculi, and sparse stipitate glands to apices. 2n = 28.


Phenology: Flowering May–Jul.
Habitat: Dry wooded slopes, hillside thickets, rocky hills, upland woods, cherty upper slopes, sandstone glades, prairies
Elevation: 100–1100 m

Distribution

V9 149-distribution-map.jpg

Ont., Ala., Ark., Ga., Ill., Ind., Iowa, Kans., La., Md., Mich., Miss., Mo., N.C., Okla., Pa., S.C., Tenn., Tex., Va., W.Va., Wis.

Discussion

Subspecies subserrulata is distinguished by relatively short, stout, erect stems armed with paired, subulate or stout, long, infrastipular prickles together with shorter prickles, aciculi, and stipitate glands to stem apices. It is most common in the Midwest with an epicenter in drier habitats of the Ozark Plateau, where it is particularly common in Arkansas, eastern Kansas, Missouri, eastern Oklahoma, and northeastern Texas. This range corresponds to the Illinoian Floristic Subprovince and, in part, the Appalachian Subprovince, where both subspecies occur.

Selected References

None.

Lower Taxa

None.
Walter H. Lewis +, Barbara Ertter +  and Anne Bruneau +
(Rydberg) W. H. Lewis +
Rosa subserrulata +
Ont. +, Ala. +, Ark. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, La. +, Md. +, Mich. +, Miss. +, Mo. +, N.C. +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +, W.Va. +  and Wis. +
100–1100 m +
Dry wooded slopes, hillside thickets, rocky hills, upland woods, cherty upper slopes, sandstone glades, prairies +
Flowering May–Jul. +
Endemic +  and Illustrated +
R. palmeri +, R. rudiuscula +  and R. texarkana +
Rosa carolina subsp. subserrulata +
Rosa carolina +
subspecies +