Rubus setosus

Bigelow

Fl. Boston. ed. 2, 198. 1824.

Common names: Bristly blackberry ronce sétuleuse
Endemic
Synonyms: Rubus apparatus L. H. Bailey R. beatus L. H. Bailey R. benneri L. H. Bailey R. bicknellii L. H. Bailey R. boottianus L. H. Bailey R. condignus L. H. Bailey R. deaneanus L. H. Bailey R. discretus L. H. Bailey R. dissensus L. H. Bailey R. dissimilis L. H. Bailey R. electus L. H. Bailey R. exter L. H. Bailey R. fulleri L. H. Bailey R. groutianus Blanchard R. gulosus L. H. Bailey R. hispidoides L. H. Bailey R. hispidus var. suberectus Peck R. jejunus L. H. Bailey R. junceus Blanchard R. junior L. H. Bailey R. lawrencei L. H. Bailey R. mediocris L. H. Bailey R. navus L. H. Bailey R. nocivus L. H. Bailey R. notatus L. H. Bailey R. ortivus (L. H. Bailey) L. H. Bailey R. perinvisus L. H. Bailey R. racemiger L. H. Bailey R. regionalis (L. H. Bailey) L. H. Bailey R. reravus L. H. Bailey R. rotundior (L. H. Bailey) L. H. Bailey R. schneideri L. H. Bailey R. semisetosus Blanchard R. spectatus L. H. Bailey R. stipulatus L. H. Bailey R. uniformis L. H. Bailey R. univocus L. H. Bailey R. vermontanus Blanchard R. viridifrons L. H. Bailey R. wheeleri (L. H. Bailey) L. H. Bailey
Treatment appears in FNA Volume 9. Treatment on page 53. Mentioned on page 32, 33, 35, 38, 41, 42, 50.

Shrubs, 2–10 (–15) dm, armed. Stems biennial, erect to arching, rarely creeping, not node or tip-rooting, sparsely to moderately hairy, sparsely to densely long, rarely short-stipitate-glandular, glands rounded to flattened, not pruinose; prickles absent or sparsely to moderately dense, erect to retrorse, weak, slender, 1–3 (–5) mm, narrow-based; bristles sparse to dense, erect to retrorse, green to reddish, narrow, semirigid, sometimes flexible, not gland-tipped. Leaves deciduous, ternate or palmately compound, sometimes ± lustrous; stipules filiform to lanceolate, 5–20 (–38) mm; leaflets (3–) 5, terminal obovate or elliptic to rhombic, 4.5–11.5 × 2–7 cm, base cuneate to narrowly rounded, unlobed, margins moderately, coarsely serrate to doubly serrate or serrate-dentate, apex acute or acuminate to short-attenuate, abaxial surfaces unarmed or with bristles on midvein, sparsely to moderately hairy, eglandular or sparsely to moderately sessile to long-stipitate-glandular along larger veins. Inflorescences terminal on short-shoots, sometimes appearing axillary, 5–15 (–20) -flowered, racemiform, cymiform, or thyrsiform. Pedicels prickles or bristles sparse to dense, erect to retrorse, moderately to densely hairy, moderately to densely stipitate-glandular. Flowers bisexual; petals white, obovate to oblanceolate, 6–13 mm; filaments filiform; ovaries glabrous. Fruits black, globose, 0.7–1.5 cm; drupelets 5–25, strongly coherent, separating with torus attached. 2n = 14, 21, 28, 35.


Phenology: Flowering Jun–Jul(–Aug).
Habitat: Open woodlands, savannas, prairies, meadows, disturbed areas, dry to wet soil
Elevation: 0–1000 m

Distribution

V9 74-distribution-map.jpg

N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Conn., Del., D.C., Ill., Ind., Iowa, Maine, Md., Mass., Mich., Minn., N.H., N.J., N.Y., Ohio, Pa., R.I., Vt., Va., W.Va., Wis.

Discussion

Rubus setosus is identified by erect to arching, rarely creeping, not tip-rooting, terete primocanes, always setose but variable in density, and deciduous primocane leaves that are often palmately compound with five leaflets. Cultivated plants sometimes alternate from erect to creeping (or vice-versa) in successive years, depending on changing soil conditions.

The following nothospecies names are based on putative hybrids involving Rubus setosus and: R. allegheniensis (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); R. canadensis (R. ×miscix L. H. Bailey [based on R. ×peculiaris Blanchard (not R. peculiaris Sampaio)]); R. flagellaris (R. ×alter L. H. Bailey, R. ×arcuans Fernald & H. St. John, R. ×biformispinus Blanchard, R. ×bigelovianus L. H. Bailey, R. ×bracteolifer Fernald, R. ×jacens Blanchard var. specialis L. H. Bailey, R. ×laevior (L. H. Bailey) Fernald [based on R. permixtus var. laevior L. H. Bailey], R. ×multiformis Blanchard, R. ×setospinosus L. H. Bailey, R. ×severus Brainerd ex Fernald); R. hispidus (R. ×adjacens Fernald, R. ×grandidens L. H. Bailey, R. ×harmonicus L. H. Bailey, R. ×jacens Blanchard, R. ×parlinii L. H. Bailey, R. ×spiculosus Fernald, R. ×tardatus Blanchard, R. ×tholiformis Fernald, R. ×trifrons Blanchard, R. ×zaplutus L. H. Bailey); R. pensilvanicus (R. ×wisconsinensis L. H. Bailey).

Selected References

None.

Lower Taxa

None.

"thin" is not a number."dm" is not declared as a valid unit of measurement for this property.

... more about "Rubus setosus"
35 +, 28 +, 21 +  and 14 +
eglandular or +  and sparsely moderately sessile +
long-stipitate-glandular +  and hairy +
acuminate;short-attenuate +
Lawrence A. Alice +, Douglas H. Goldman +, James A. Macklin +  and Gerry Moore +
Bigelow +
compound +  and simple +
opposite +  and alternate +
unlobed +, cuneate +  and narrowly rounded +
reniform +  and orbiculate +
2 cm20 mm <br />0.02 m <br /> (30 cm300 mm <br />0.3 m <br />) +
herbaceous +  and more or less coriaceous +
not gland-tipped +
not pruinose +
green +  and reddish +
hairy +  and moderately densely stipitate-glandular +
sparse to dense +
free +  and distinct +
hairy +  and glabrous +
Bristly blackberry +  and ronce sétuleuse +
N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Conn. +, Del. +, D.C. +, Ill. +, Ind. +, Iowa +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, N.H. +, N.J. +, N.Y. +, Ohio +, Pa. +, R.I. +, Vt. +, Va. +, W.Va. +  and Wis. +
not +  and aggregated +
0–1000 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 +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
dryish +  and fleshy +
not pruinose +
rounded +  and flattened +
Open woodlands, savannas, prairies, meadows, disturbed areas, dry to wet 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 +
flat +  and hemispheric +
thyrsiform +, cymiform +, racemiform +  and 5-15(-20)-flowered +
glabrous or +  and sparsely densely pubescent +
crassinucellate +
compound +  and ternate +
deciduous +
4.5 cm45 mm <br />0.045 m <br /> (11.5 cm115 mm <br />0.115 m <br />) +
elliptic +  and rhombic +
1.7 cm17 mm <br />0.017 m <br /> (15 cm150 mm <br />0.15 m <br />) +
2 cm20 mm <br />0.02 m <br /> (?) +  and 7 cm70 mm <br />0.07 m <br /> (?) +
serrate-dentate +, coarsely serrate +  and doubly serrate +
revolute +  and finely coarsely crenate +
tip-rooting +
short-stipitate-glandular +  and hairy +
inferior +  and superior +
clustered +, biseriate +  and superposed +
collateral +  and apical +
1 +  and 2 +
eglandular +, armed +  and unarmed +
erect +  and retrorse +
hairy +  and moderately densely stipitate-glandular +
0 (?) +  and 5 (?) +
free +  and distinct +
obovate;oblanceolate +
0.6 cm6 mm <br />0.006 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Flowering Jun–Jul(–Aug). +
adnate +, free +, connate +  and distinct +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
sparse +  and dense +
erect +  and retrorse +
hairy +  and moderately densely stipitate-glandular +
sparse to dense +
not +  and broad-based +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Fl. Boston. ed. +
not arillate +
eglandular +, armed +  and unarmed +
persistent +
free +  and distinct +
reflexed +  and spreading +
stipitate-glandular +, hairy +  and glabrous +
lanceolate +  and long-caudate +
free +  and distinct +
shorter to longer +
not +  and rooting +
scrambling +  and mounding +
erect +  and arching +
1 +  and several +
angled +  and terete +
palmate +  and pinnate +
2 cm20 mm <br />0.02 m <br /> (3.8 cm38 mm <br />0.038 m <br />) +
adnate +  and free +
filiform;lanceolate +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
persistent +
distinct +
clavate +
slender +
Rubus apparatus +, R. beatus +, R. benneri +, R. bicknellii +, R. boottianus +, R. condignus +, R. deaneanus +, R. discretus +, R. dissensus +, R. dissimilis +, R. electus +, R. exter +, R. fulleri +, R. groutianus +, R. gulosus +, R. hispidoides +, R. hispidus var. suberectus +, R. jejunus +, R. junceus +, R. junior +, R. lawrencei +, R. mediocris +, R. navus +, R. nocivus +, R. notatus +, R. ortivus +, R. perinvisus +, R. racemiger +, R. regionalis +, R. reravus +, R. rotundior +, R. schneideri +, R. semisetosus +, R. spectatus +, R. stipulatus +, R. uniformis +, R. univocus +, R. vermontanus +, R. viridifrons +  and R. wheeleri +
Rubus setosus +
species +
inconspicuous +
convex +  and conic +
enlarged +  and small +
fibrous +  and woody +