View source for Rubus cuneifolius

{{Treatment/ID
|accepted_name=Rubus cuneifolius
|accepted_authority=Pursh
|publications={{Treatment/Publication
|title=Fl. Amer. Sept.
|place=1: 347. 1813
|year=1813
}}
|common_names=Sand blackberry
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Rubus audax
|authority=L. H. Bailey
|rank=species
}} {{Treatment/ID/Synonym
|name=R. chapmanii
|authority=L. H. Bailey
|rank=species
}} {{Treatment/ID/Synonym
|name=R. cuneifolius var. angustior
|authority=L. H. Bailey
|rank=variety
}} {{Treatment/ID/Synonym
|name=R. cuneifolius var. austrifer
|authority=L. H. Bailey
|rank=variety
}} {{Treatment/ID/Synonym
|name=R. cuneifolius var. spiniceps
|authority=L. H. Bailey
|rank=variety
}} {{Treatment/ID/Synonym
|name=R. cuneifolius var. subellipticus
|authority=Fernald
|rank=variety
}} {{Treatment/ID/Synonym
|name=R. georgiensis
|authority=L. H. Bailey
|rank=species
}} {{Treatment/ID/Synonym
|name=R. probabilis
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=R. probativus
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=R. randolphiorum
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=R. sejunctus
|authority=
|rank=species
}}
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Rubeae;Rubus;Rubus cuneifolius
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rosaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Rosaceae subfam. Rosoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Rosaceae tribe Rubeae]]</div><div class="higher-taxon"><small>genus</small>[[Rubus]]</div><div class="higher-taxon"><small>species</small>[[Rubus cuneifolius]]</div></div>
|volume=Volume 9
|mention_page=page 33, 34, 42, 49, 50, 54
|treatment_page=page 39
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> 5–10(–30) dm, armed. <b>Stems</b> biennial, erect, rarely arching, sparsely to densely hairy (especially young), eglandular, not pruinose; bark not papery, peeling; prickles usually dense, hooked to retrorse, usually stout, 3–6 mm, broad-based. <b>Leaves</b> deciduous to semievergreen, usually ternate, sometimes palmately compound; stipules filiform or linear to lanceolate, 3–15 mm; leaflets 3–5, terminal cuneate to obovate, 2–6 × 3–4 cm, base cuneate, unlobed, margins serrate, rarely doubly serrate, apex broadly rounded to subtruncate, often cuspidate, abaxial surfaces often with prickles on midveins, densely gray- to white-hairy, sparsely to densely sessile-glandular. <b>Inflorescences</b> terminal on short shoots, sometimes appearing axillary, (1–)3–5(–12)-flowered, cymiform. <b>Pedicels</b> unarmed or prickles sparse to moderate, hooked to retrorse, moderately to densely hairy, eglandular or sparsely to moderately sessile-glandular. <b>Flowers</b> bisexual; petals white, elliptic to obovate, 5–15 mm; filaments filiform; ovaries glabrous or glabrate. <b>Fruits</b> black, globose to cylindric, 0.6–2 cm; drupelets 15–50, strongly coherent, separating with torus attached. <b>2n</b> = 21, 28.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Jul.
|habitat=Dry to damp open areas, sandy or rocky soil
|elevation=0–300 m
|distribution=Ala.;Conn.;Del.;D.C.;Fla.;Ga.;La.;Md.;Mass.;Miss.;N.H.;N.J.;N.Y.;N.C.;Pa.;S.C.;Tenn.;Va.
|discussion=<p><i>Rubus cuneifolius</i> is characteristic of the Coastal Plain and Piedmont. The species is distinguished from most other blackberries in the flora area by its usually strongly erect and shrub-forming habit and abaxial leaflet surfaces often with dense white to gray indument; it may be confused with <i>R. pascuus</i>. <i>Rubus cuneifolius</i> has white petals and cuneate to obovate leaflets with usually revolute margins, the proximal third entire; <i>R. pascuus</i> has pale pink to white petals and ovate to broadly elliptic leaflets with the margins flat and entire only at base.</p><!--
--><p><i>Rubus</i> longii Fernald may represent hybridization between <i>R. cuneifolius</i> and another, yet-undetermined, blackberry (perhaps <i>R. pascuus</i>). Hybrids of <i>R. cuneifolius</i> and <i>R. hispidus</i> can be found around abandoned commercial cranberry bogs in New Jersey (G. Moore, pers. obs.). <i>Rubus cuneifolius</i> is introduced in South Africa and is officially recognized there as a noxious weed (L. Henderson 1995; T. Olkers and M. P. Hill 1999; H. Klein 2002). Preliminary examination of plants identified as <i>R. cuneifolius</i> from South Africa has shown that the plants are not <i>R. cuneifolius</i> but may be hybrids involving <i>R. cuneifolius</i> and another species.</p><!--
--><p>The following nothospecies names are based on putative hybrids involving <i>Rubus cuneifolius</i> and: <i>R. pensilvanicus</i> (R. ×acer L. H. Bailey, R. ×acer var. subacer L. H. Bailey, R. ×argutinus L. H. Bailey, R. ×floridensis L. H. Bailey); <i>R. trivialis</i> (R. ×inferior L. H. Bailey).</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Rubus cuneifolius
|authority=Pursh
|rank=species
|parent rank=genus
|synonyms=Rubus audax;R. chapmanii;R. cuneifolius var. angustior;R. cuneifolius var. austrifer;R. cuneifolius var. spiniceps;R. cuneifolius var. subellipticus;R. georgiensis;R. probabilis;R. probativus;R. randolphiorum;R. sejunctus
|basionyms=
|family=Rosaceae
|phenology=Flowering May–Jul.
|habitat=Dry to damp open areas, sandy or rocky soil
|elevation=0–300 m
|distribution=Ala.;Conn.;Del.;D.C.;Fla.;Ga.;La.;Md.;Mass.;Miss.;N.H.;N.J.;N.Y.;N.C.;Pa.;S.C.;Tenn.;Va.
|reference=None
|publication title=Fl. Amer. Sept.
|publication year=1813
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_46.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Rubeae
|genus=Rubus
|species=Rubus cuneifolius
}}<!--

-->[[Category:Treatment]][[Category:Rubus]]