View source for Rosa acicularis

{{Treatment/ID
|accepted_name=Rosa acicularis
|accepted_authority=Lindley
|publications={{Treatment/Publication
|title=Ros. Monogr.,
|place=44, plate 8. 1820
|year=1820
}}
|common_names=Acicular rose
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms=
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Roseae;Rosa;Rosa subg. Rosa;Rosa sect. Rosa;Rosa acicularis
|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 Roseae]]</div><div class="higher-taxon"><small>genus</small>[[Rosa]]</div><div class="higher-taxon"><small>subgenus</small>[[Rosa subg. Rosa]]</div><div class="higher-taxon"><small>section</small>[[Rosa sect. Rosa]]</div><div class="higher-taxon"><small>species</small>[[Rosa acicularis]]</div></div>
|volume=Volume 9
|mention_page=page 96, 107, 112
|treatment_page=page 114
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> forming dense thickets. <b>Stems</b> erect, stout, (3–)10–20(–25) dm, sparsely or densely branched distally; bark pale brown with tips dull red, glabrous; infrastipular prickles absent, internodal prickles dense, erect, subulate, terete, ± flattened, 9 × 4 mm, sparsely stipitate-glandular, mixed with dense aciculi. <b>Leaves</b> 5.5–15 cm; stipules 20–25 × 3–8 mm, auricles flared or erect, 5–7 mm, margins usually entire, stipitate-glandular, surfaces glabrous, sometimes puberulent, sparsely sessile-glandular or eglandular; petiole and rachis usually (rarely) with pricklets, glabrous or puberulent to pubescent, sessile-glandular; leaflets 5–7 (on annual shoots), terminal: petiolule 6–20 mm, blade elliptic, ovoid, or ovate-lanceolate, 20–60 × 13–32 mm, firm, margins 1(–2+)-dentate-serrate, teeth 11–25 per side acute or obtuse, gland-tipped or eglandular, apex acute or obtuse, abaxial surfaces light green, glabrous or puberulent (on main veins), eglandular or sparsely to densely sessile-glandular, adaxial green, dull, glabrous or sparsely hairy. <b>Inflorescences</b> corymbs, 1 or 2(or 3)-flowered. <b>Pedicels</b> reflexed as hips mature, slender, (13–)20–28(–35) mm, glabrous, stipitate-glandular or eglandular; bracts 1–3, ovoid, 18–22 × 4–14 mm, margins entire, sessile- or short stipitate-glandular, surfaces glabrous, sometimes hairy, eglandular. <b>Flowers</b> 3–6 cm diam.; hypanthium ovoid to oblong, 5–8 × 4–6 mm, glabrous, eglandular, neck 1 × 2.5–3 mm; sepals spreading, often beak-capped, lanceolate, 20–33 × (2.5–)3–3.5 mm, tip 7–12 × 0.5–0.8 mm, margins entire, sometimes pinnatifid, abaxial surfaces glabrous, sometimes pubescent, eglandular or stipitate-glandular (north); petals single, rose pink to pale pink, (13–)22–25 × (11–)20–25 mm; stamens 75–100; carpels 18–33, styles exsert 1 mm beyond stylar orifice (2 mm diam.) of ± flat hypanthial disc (3.5–4.5 mm diam.). <b>Hips</b> orange-red to bright red or blue-purple, globose to ellipsoid or urceolate, 10–23 × 9–11 mm, fleshy, glabrous, eglandular, neck 1–2 × 2–2.5 mm; sepals persistent, erect, often beak-capped. <b>Achenes</b> basiparietal, 14–25, tan, 4 × 2–2.5 mm.</span><!--

-->{{Treatment/Body
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;N.W.T.;Nunavut;Ont.;Que.;Sask.;Yukon;Alaska;Colo.;Iowa;Maine;Mass.;Mich.;Minn.;Mont.;N.Dak.;N.H.;N.Y.;S.Dak.;Vt.;W.Va.;Wis.;Wyo.;Eurasia.
|discussion=<p>Subspecies 2 (2 in the flora).</p><!--
--><p><i>Rosa acicularis</i> is circumpolar in forests of Eurasia and North America. Octoploid <i></i>subsp.<i> acicularis</i> occurs from Sweden across northern Russia to Outer Mongolia, northern China, Korea, and Japan; hexaploid <i></i>subsp.<i> sayi</i> is found throughout northern North America. The two subspecies meet in an intergradation zone from eastern Siberia to Alaska, and perhaps Yukon (W. H. Lewis 1958), where ploidy level is required for subspecies or hybrid confirmation.</p>
|tables=
|references={{Treatment/Reference
|id=lewis1958a
|text=Lewis, W. H. 1958. A monograph of the genus Rosa in North America. I. R. accicularis. Brittonia 11: 1–24.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Pedicels densely stipitate-glandular; leaflets 5 (or 7), margins 1(–2+)-dentate-serrate; sepal abaxial surfaces usually stipitate-glandular.
|[[Rosa acicularis subsp. acicularis|Rosa acicularis subsp. acicularis]]
|-id=key-0-1
|1
|Pedicels usually eglandular, if stipitate-glandular, not to apex or stipitate glands mostly sparse; leaflets 5–7, margins 1–2-dentate-serrate; sepal abaxial surfaces usually eglandular.
|[[Rosa acicularis subsp. sayi|Rosa acicularis subsp. sayi]]
|}
</div></div><!--

-->{{#Taxon:
name=Rosa acicularis
|authority=Lindley
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Rosaceae
|distribution=Alta.;B.C.;Man.;N.B.;N.S.;N.W.T.;Nunavut;Ont.;Que.;Sask.;Yukon;Alaska;Colo.;Iowa;Maine;Mass.;Mich.;Minn.;Mont.;N.Dak.;N.H.;N.Y.;S.Dak.;Vt.;W.Va.;Wis.;Wyo.;Eurasia.
|reference=lewis1958a
|publication title=Ros. Monogr.,
|publication year=1820
|special status=Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V9/V9_169.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Roseae
|genus=Rosa
|subgenus=Rosa subg. Rosa
|section=Rosa sect. Rosa
|species=Rosa acicularis
}}<!--

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[[Category:Treatment]]
[[Category:Rosa sect. Rosa]]
[[Category:Revision Pending]]