View source for Salix uva-ursi

{{Treatment/ID
|accepted_name=Salix uva-ursi
|accepted_authority=Pursh
|publications={{Treatment/Publication
|title=Fl. Amer. Sept.
|place=2: 610. 1813
|year=1813
}}
|common_names=Bearberry willow
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Salix ivigtutiana
|authority=Lundström
|rank=species
}} {{Treatment/ID/Synonym
|name=Salix myrsinites var. parvifolia
|authority=Lange
|rank=variety
}}
|hierarchy=Salicaceae;Salix;Salix subg. Chamaetia;Salix sect. Myrtosalix;Salix uva-ursi
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Salicaceae]]</div><div class="higher-taxon"><small>genus</small>[[Salix]]</div><div class="higher-taxon"><small>subgenus</small>[[Salix subg. Chamaetia]]</div><div class="higher-taxon"><small>section</small>[[Salix sect. Myrtosalix]]</div><div class="higher-taxon"><small>species</small>[[Salix uva-ursi]]</div></div>
|volume=Volume 7
|mention_page=page 60, 62, 68, 74
|treatment_page=page 73
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism some measurement;whole_organism growth form;mat growth form;mat architecture or arrangement"><b>Plants </b>0.01–0.05 m, (dwarf), forming clonal compact mats by layering.</span> <span class="statement" id="st-d0_s1" data-properties="stem growth form or orientation;stem orientation"><b>Stems </b>prostrate, short-trailing;</span> <span class="statement" id="st-d0_s2" data-properties="branch coloration;branch coloration;branch coloration;branch coloration;branch coloration;branch pubescence">branches redbrown, gray-brown, or yellowbrown, glabrous;</span> <span class="statement" id="st-d0_s3" data-properties="branchlet coloration;branchlet coloration;branchlet pubescence;branchlet pubescence">branchlets yellow-green or yellowbrown, glabrous or puberulent.</span> <span class="statement" id="st-d0_s4" data-properties="stipule presence;stipule prominence;stipule architecture;stipule architecture"><b>Leaves:</b> stipules (sometimes marcescent) absent, rudimentary, or foliaceous on early ones, foliaceous on late ones;</span> <span class="statement" id="st-d0_s5" data-properties="leaf some measurement">petiole (shallowly to deeply grooved adaxially), 2–6.5 mm;</span> <span class="statement" id="st-d0_s6" data-properties="leaf architecture;leaf architecture;leaf shape;leaf shape;leaf shape;leaf shape;leaf shape;leaf shape;leaf length;leaf width;leaf l w ratio;base shape;base shape;margin shape;margin shape;margin shape;apex shape;apex shape;apex shape;apex shape;apex shape;apex shape;abaxial surface pubescence;abaxial surface pubescence;adaxial surface reflectance;adaxial surface pubescence">largest medial blade (marcescent), amphistomatous or hypostomatous, ovate, broadly obovate, oblanceolate, or elliptic, 4–23 × 3.5–10 mm, 1.7–3.6 times as long as wide, base convex or cuneate, margins flat, serrulate or crenulate, apex convex, acuminate, acute, or retuse, abaxial surface glaucous, usually glabrous (rarely few hairs), adaxial slightly or highly glossy, usually glabrous (rarely a few hairs);</span> <span class="statement" id="st-d0_s7" data-properties="blade margin architecture or shape;blade margin architecture or shape">proximal blade margins entire or serrate;</span> <span class="statement" id="st-d0_s8" data-properties="blade life cycle;blade pubescence;blade pubescence;blade pubescence;blade pubescence;blade pubescence">juvenile blade glabrous, pilose, or puberulent abaxially.</span> <span class="statement" id="st-d0_s9" data-properties="catkin architecture;catkin length;catkin width;branchlet life cycle;branchlet some measurement"><b>Catkins:</b> staminate 9–19 × 5–8 mm, flowering branchlet 0.5–9 mm;</span> <span class="statement" id="st-d0_s10" data-properties="catkin architecture;catkin architecture;catkin size;catkin shape;catkin length;catkin width;branchlet life cycle;branchlet some measurement">pistillate densely flowered, slender to subglobose, 11–47 (–55 in fruit) × 6–10 mm, flowering branchlet 2–10 mm;</span> <span class="statement" id="st-d0_s11" data-properties="floral bract coloration;floral bract coloration;floral bract coloration;floral bract coloration;floral bract coloration;floral bract coloration;floral bract coloration;floral bract some measurement;apex shape;apex shape;apex architecture or shape;apex pubescence;hair course;hair shape">floral bract brown, black, tawny, light rose, or bicolor, 1.1–1.8 mm, apex rounded or acute, entire, abaxially sparsely hairy, hairs straight or wavy.</span> <span class="statement" id="st-d0_s12" data-properties="flower architecture;abaxial nectary presence;adaxial nectary shape;adaxial nectary shape;adaxial nectary some measurement"><b>Staminate </b>flowers: abaxial nectary absent, adaxial nectary narrowly oblong or oblong, 0.4–0.9 mm;</span> <span class="statement" id="st-d0_s13" data-properties="flower architecture;filament fusion;filament pubescence">filaments distinct, glabrous;</span> <span class="statement" id="st-d0_s14" data-properties="flower architecture;stamen quantity;stamen quantity">stamens usually 1, rarely 2;</span> <span class="statement" id="st-d0_s15" data-properties="flower architecture;anther shape;anther shape;anther some measurement">anthers ellipsoid or shortly cylindrical, 0.4–0.7 mm.</span> <span class="statement" id="st-d0_s16" data-properties="flower architecture;abaxial nectary presence;adaxial nectary shape;adaxial nectary shape;adaxial nectary some measurement;adaxial nectary size or length"><b>Pistillate </b>flowers: abaxial nectary absent, adaxial nectary narrowly oblong or oblong, 0.5–0.8 mm, shorter to longer than stipe;</span> <span class="statement" id="st-d0_s17" data-properties="flower architecture;stipe some measurement">stipe 0.3–1.6 mm;</span> <span class="statement" id="st-d0_s18" data-properties="flower architecture;ovary shape;ovary shape;ovary pubescence;beak shape">ovary ovoid or pyriform, glabrous, beak gradually tapering to styles;</span> <span class="statement" id="st-d0_s19" data-properties="flower architecture;ovule quantity">ovules 4–9 per ovary;</span> <span class="statement" id="st-d0_s20" data-properties="flower architecture;style some measurement">styles 0.4–1 mm;</span> <span class="statement" id="st-d0_s21" data-properties="flower architecture;stigma prominence or shape;stigma relief;stigma shape;stigma some measurement;tip shape">stigmas flat, abaxially non-papillate with rounded tip, or slenderly cylindrical, 0.1–0.23–0.4 mm.</span> <span class="statement" id="st-d0_s22" data-properties="capsule some measurement;2n chromosome quantity"><b>Capsules </b>3–5 mm. <b>2n</b> = 38.</span><!--

-->{{Treatment/Body
|phenology=Flowering mid Jun-early Aug.
|habitat=Exposed, often dry or moist, calcareous, serpentine, dioritic, and granitic rocks, boulders, gravel, sand on beaches, outcrops, in snowbeds
|elevation=10-1200 m
|distribution=Greenland;St. Pierre and Miquelon;Nfld. and Labr.;N.S.;Nunavut;Que.;Maine;N.H.;N.Y.;Vt.
|discussion=<p>Hybrids:</p><!--
--><p>Salix uva-ursi forms natural hybrids with S. herbacea.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Salix uva-ursi
|authority=Pursh
|rank=species
|parent rank=section
|synonyms=Salix ivigtutiana;Salix myrsinites var. parvifolia
|basionyms=
|family=Salicaceae
|phenology=Flowering mid Jun-early Aug.
|habitat=Exposed, often dry or moist, calcareous, serpentine, dioritic, and granitic rocks, boulders, gravel, sand on beaches, outcrops, in snowbeds
|elevation=10-1200 m
|distribution=Greenland;St. Pierre and Miquelon;Nfld. and Labr.;N.S.;Nunavut;Que.;Maine;N.H.;N.Y.;Vt.
|reference=None
|publication title=Fl. Amer. Sept.
|publication year=1813
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V7/V7_72.xml
|genus=Salix
|subgenus=Salix subg. Chamaetia
|section=Salix sect. Myrtosalix
|species=Salix uva-ursi
|2n chromosome quantity=38
|abaxial nectary presence=absent;absent
|abaxial surface pubescence=glabrous;glaucous
|adaxial nectary shape=oblong;oblong;oblong;oblong
|adaxial nectary size or length=shorter to longer
|adaxial nectary some measurement=0.5mm;0.8mm
|adaxial surface pubescence=glabrous
|adaxial surface reflectance=glossy
|anther shape=cylindrical;ellipsoid
|anther some measurement=0.4mm;0.7mm
|apex architecture or shape=entire
|apex pubescence=hairy
|apex shape=acute;rounded;retuse;acute;retuse;acute;acuminate;convex
|base shape=cuneate;convex
|beak shape=tapering
|blade life cycle=juvenile
|blade margin architecture or shape=serrate;entire
|blade pubescence=puberulent;pilose;puberulent;pilose;glabrous
|branch coloration=yellowbrown;gray-brown;yellowbrown;gray-brown;redbrown
|branch pubescence=glabrous
|branchlet coloration=yellowbrown;yellow-green
|branchlet life cycle=flowering;flowering
|branchlet pubescence=puberulent;glabrous
|branchlet some measurement=2mm;10mm
|capsule some measurement=3mm;5mm
|catkin architecture=flowered;pistillate;staminate
|catkin length=11mm;47mm
|catkin shape=subglobose
|catkin size=slender
|catkin width=6mm;10mm
|filament fusion=distinct
|filament pubescence=glabrous
|floral bract coloration=bicolor;light rose;bicolor;light rose;tawny;black;brown
|floral bract some measurement=1.1mm;1.8mm
|flower architecture=pistillate;pistillate;pistillate;pistillate;pistillate;pistillate;staminate;staminate;staminate;staminate
|hair course=straight
|hair shape=wavy
|leaf architecture=hypostomatous;amphistomatous
|leaf l w ratio=1.7-3.6
|leaf length=4mm;23mm
|leaf shape=elliptic;oblanceolate;elliptic;oblanceolate;obovate;ovate
|leaf some measurement=2mm;6.5mm
|leaf width=3.5mm;10mm
|margin shape=crenulate;serrulate;flat
|mat architecture or arrangement=compact
|mat growth form=clonal
|ovary pubescence=glabrous
|ovary shape=pyriform;ovoid
|ovule quantity=4;9
|stamen quantity=2;1
|stem growth form or orientation=prostrate
|stem orientation=short-trailing
|stigma prominence or shape=flat
|stigma relief=non-papillate
|stigma shape=cylindrical
|stigma some measurement=0.1mm;0.23-0.4mm
|stipe some measurement=0.3mm;1.6mm
|stipule architecture=foliaceous;foliaceous
|stipule presence=absent
|stipule prominence=rudimentary
|style some measurement=0.4mm;1mm
|tip shape=rounded
|whole_organism growth form=plant
|whole_organism some measurement=0.01m;0.05m
}}<!--

-->[[Category:Treatment]][[Category:Salix sect. Myrtosalix]]