Rubus allegheniensis

Porter

Bull. Torrey Bot. Club 23: 153. 1896.

Common names: Allegheny or common blackberry sow-teat berry ronce des Alléghanys
EndemicIllustrated
Basionym: Rubus villosus var. montanus Porter Bull. Torrey Bot. Club 17: 15. 1890
Synonyms: R. acadiensis L. H. Bailey R. allegheniensis var. calycosus (Fernald) Fernald R. allegheniensis var. gravesii (Fernald) Fernald R. allegheniensis var. neoscoticus (Fernald) L. H. Bailey R. allegheniensis var. plausus L. H. Bailey R. allegheniensis var. populifolius Fernald R. alumnus H. A. Davis & T. Davis R. apianus H. A. Davis & T. Davis R. attractus Blanchard R. auroralis L. H. Bailey R. campester L. H. Bailey R. concameratus L. H. Bailey R. fryei L. H. Bailey R. glandicaulis Blanchard ex L. H. Bailey R. impos L. H. Bailey R. inclinis L. H. Bailey R. irregularis L. H. Bailey R. licitus L. H. Bailey R. montpelierensis L. H. Bailey R. nigrobaccus L. H. Bailey R. nuperus Brainerd ex Fernald R. paulus R. pugnax R. rosa R. saltuensis R. sceleratus
Treatment appears in FNA Volume 9. Treatment on page 34. Mentioned on page 35, 38, 41, 50, 53, 56.

Shrubs, 10–30 dm, armed. Stems biennial, erect-arching, sparsely to densely hairy, sparsely to abundantly stipitate-glandular, glands usually flattened to cupulate, not pruinose; prickles sparse to dense, erect or slightly retrorse, stout, 4–10 mm, broad-based. Leaves deciduous, palmately compound, not lustrous; stipules filiform to narrowly lanceolate, (2–) 5–15 (–20) mm; leaflets (3–) 5 (–7), terminal ovate to lanceolate, 7–16 × 4–9 cm, base rounded to shallowly cordate, unlobed, margins finely to coarsely serrate or doubly serrate, apex acuminate to long-attenuate, abaxial surfaces with hooked prickles on midveins, moderately hairy, moderately to densely stipitate-glandular on veins. Inflorescences terminal on short-shoots, sometimes appearing axillary, (5–) 15–25-flowered, racemiform, often elongate. Pedicels unarmed or prickles sparse, hooked, densely hairy, densely short to long-stipitate-glandular. Flowers bisexual; petals white, obovate to elliptic, rarely suborbiculate, 8–20 mm; filaments filiform; ovaries glabrous or glabrate. Fruits black, globose to cylindric, 1–2 cm; drupelets 20–100, strongly coherent, separating with torus attached. 2n = 14, 21, 28.


Phenology: Flowering May–Jul.
Habitat: Woodlands, savannas, prairies, meadows, rock outcrops, disturbed areas, dry to damp soil
Elevation: 0–1600 m

Distribution

V9 36-distribution-map.jpg

B.C., N.B., N.S., Ont., P.E.I., Que., Ala., Ark., Calif., Conn., Del., D.C., Ga., Ill., Ind., Iowa, Kans., Ky., Maine, Md., Mass., Mich., Minn., Mo., Nebr., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.

Discussion

Rubus allegheniensis consists of erect-arching, usually well-armed plants, usually densely stipitate-glandular with flattened to cupulate glands, particularly about the inflorescence.

The Menominee, Meskwaki, and Potawatomi used root extracts of Rubus allegheniensis to treat eye irritation (H. H. Smith 1923, 1928, 1933). The Ojibwa used boiled extracts of the canes as a diuretic and a root extract for treating diarrhea (Smith 1932). Rubus allegheniensis is introduced in British Columbia and California, where rare and in at least California probably no more than a waif.

Rubus montanus (Porter) Porter, a name that has been used for this species, is a later homonym of R. montanus Libert ex Lejeune.

The following nothospecies names are based on putative hybrids involving Rubus allegheniensis and: R. canadensis (R. ×forestalis L. H. Bailey, R. ×immanis Ashe); R. flagellaris (R. ×boyntonii Ashe, R. ×fraternalis L. H. Bailey [based on R. ×fraternus Brainerd & Peitersen (not R. fraternus Gremli), R. ×licens L. H. Bailey, R. ×ostryifolius Rydberg); R. pensilvanicus (R. ×avipes L. H. Bailey, R. ×floricomus Blanchard, R. ×orarius Blanchard); R. setosus (R. ×abbrevians Blanchard, R. ×aculiferus Fernald, R. ×adenocaulis Fernald, R. ×angustifoliatus L. H. Bailey, R. ×ascendens Blanchard, R. ×atwoodii L. H. Bailey, R. ×clausenii L. H. Bailey, R. ×flavinanus Blanchard, R. ×frondisentis Blanchard, R. ×perspicuus L. H. Bailey, R. ×ravus L. H. Bailey).

Selected References

None.

Lower Taxa

None.
... more about "Rubus allegheniensis"
28 +, 21 +  and 14 +
eglandular +, with prickles +  and unarmed +
moderately hairy +  and moderately densely stipitate-glandular +
Lawrence A. Alice +, Douglas H. Goldman +, James A. Macklin +  and Gerry Moore +
Porter +
compound +  and simple +
opposite +  and alternate +
unlobed +, rounded +  and shallowly cordate +
Rubus villosus var. montanus +
reniform +  and orbiculate +
2 cm20 mm <br />0.02 m <br /> (30 cm300 mm <br />0.3 m <br />) +
? (?) +  and ? (?) +
not pruinose +
stipitate-glandular +, hairy +  and glabrous +
sparse to dense +
free +  and distinct +
hairy +  and glabrous +
Allegheny or common blackberry +, sow-teat berry +  and ronce des Alléghanys +
B.C. +, N.B. +, N.S. +, Ont. +, P.E.I. +, Que. +, Ala. +, Ark. +, Calif. +, Conn. +, Del. +, D.C. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mo. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
not +  and aggregated +
0–1600 m +
0.5 cm5 mm <br />0.005 m <br /> (8 cm80 mm <br />0.08 m <br />) +
not +  and aggregated +
without torus +  and separating +
coherent +
hairy +  and glabrous +
globose +  and cylindric +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
dryish +  and fleshy +
not pruinose +
usually flattened +  and cupulate +
Woodlands, savannas, prairies, meadows, rock outcrops, disturbed areas, dry to damp soil +
eglandular or +  and sparsely densely glandular +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
glabrous or +  and sparsely densely pubescent +
racemiform +  and (5-)15-25-flowered +
glabrous or +  and sparsely densely pubescent +
crassinucellate +
deciduous +
not lustrous +
7 cm70 mm <br />0.07 m <br /> (16 cm160 mm <br />0.16 m <br />) +
ovate +  and lanceolate +
1.7 cm17 mm <br />0.017 m <br /> (15 cm150 mm <br />0.15 m <br />) +
4 cm40 mm <br />0.04 m <br /> (?) +  and 9 cm90 mm <br />0.09 m <br /> (?) +
revolute +  and finely coarsely crenate +
inferior +  and superior +
glabrate +  and glabrous +
clustered +, biseriate +  and superposed +
collateral +  and apical +
1 +  and 2 +
stipitate-glandular +, glabrous or +  and sparsely densely hairy +
0 (?) +  and 5 (?) +
free +  and distinct +
0.8 cm8 mm <br />0.008 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering May–Jul. +
adnate +, free +, connate +  and distinct +
sparse +  and dense +
retrorse +  and erect +
long-stipitate-glandular +  and hairy +
sparse to dense +
hooked +  and broad-based +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Bull. Torrey Bot. Club +
not arillate +
eglandular +, armed +  and unarmed +
persistent +
free +  and distinct +
reflexed +  and spreading +
stipitate-glandular +, hairy +  and glabrous +
lanceolate +  and long-caudate +
Endemic +  and Illustrated +
free +  and distinct +
shorter to longer +
not +  and rooting +
scrambling +  and mounding +
decumbent +  and creeping +
erect-arching +
1 +  and several +
angled +  and terete +
palmate +  and pinnate +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
adnate +  and free +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
persistent +
distinct +
clavate +
slender +
R. acadiensis +, R. allegheniensis var. calycosus +, R. allegheniensis var. gravesii +, R. allegheniensis var. neoscoticus +, R. allegheniensis var. plausus +, R. allegheniensis var. populifolius +, R. alumnus +, R. apianus +, R. attractus +, R. auroralis +, R. campester +, R. concameratus +, R. fryei +, R. glandicaulis +, R. impos +, R. inclinis +, R. irregularis +, R. licitus +, R. montpelierensis +, R. nigrobaccus +, R. nuperus +, R. paulus +, R. pugnax +, R. rosa +, R. saltuensis +  and R. sceleratus +
Rubus allegheniensis +
species +
inconspicuous +
convex +  and conic +
enlarged +  and small +
fibrous +  and woody +