View source for Boechera lemmonii

{{Treatment/ID
|accepted_name=Boechera lemmonii
|accepted_authority=(S. Watson) W. A. Weber
|publications={{Treatment/Publication
|title=Phytologia
|place=51: 370. 1982
|year=1982
}}
|basionyms={{Treatment/ID/Basionym
|name=Arabis lemmonii
|authority=S. Watson
|rank=species
|publication_title=Proc. Amer. Acad. Arts
|publication_place=22: 467. 1887 (as lemmoni)
}}
|synonyms={{Treatment/ID/Synonym
|name=Arabis bracteolata
|authority=Greene
|rank=species
}} {{Treatment/ID/Synonym
|name=Arabis canescens var. latifolia
|authority=S. Watson
|rank=variety
}} {{Treatment/ID/Synonym
|name=Arabis codyi
|authority=G. A. Mulligan
|rank=species
}} {{Treatment/ID/Synonym
|name=Arabis egglestonii
|authority=Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Arabis kennedyi
|authority=Greene
|rank=species
}} {{Treatment/ID/Synonym
|name=Arabis latifolia
|authority=(S. Watson) Piper
|rank=species
}} {{Treatment/ID/Synonym
|name=Arabis oreocallis
|authority=Greene
|rank=species
}} {{Treatment/ID/Synonym
|name=Arabis polyclada
|authority=Greene
|rank=species
}} {{Treatment/ID/Synonym
|name=Arabis semisepulta
|authority=Greene
|rank=species
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Boechereae;Boechera;Boechera lemmonii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Boechereae]]</div><div class="higher-taxon"><small>genus</small>[[Boechera]]</div><div class="higher-taxon"><small>species</small>[[Boechera lemmonii]]</div></div>
|volume=Volume 7
|mention_page=page 352, 353, 356, 360, 361, 373, 375, 384, 392, 400
|treatment_page=page 388
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="">Perennials;</span> <span class="statement" id="st-d0_s1" data-properties="">long-lived;</span> <span class="statement" id="st-d0_s2" data-properties="">(somewhat cespitose);</span> <span class="statement" id="st-d0_s3" data-properties="whole-organism duration;whole-organism reproduction;whole-organism reproduction;whole-organism duration">sexual or apomictic;</span> <span class="statement" id="st-d0_s4" data-properties="caudex texture">caudex woody.</span> <span class="statement" id="st-d0_s5" data-properties="stem quantity;stem orientation;stem orientation;stem position;stem atypical some measurement;stem some measurement;stem pubescence;stem pubescence;shoot reproduction;trichome architecture;trichome some measurement;trichome pubescence"><b>Stems </b>usually 1 per caudex branch, arising from center of rosette near ground surface, or arising laterally proximal to sterile shoots, 0.5–2 (–2.5) dm, glabrous or sparsely pubescent proximally, trichomes short-stalked, 2–6-rayed, 0.1–0.2 mm, glabrous distally.</span> <span class="statement" id="st-d0_s6" data-properties="blade shape;blade width;margin architecture or shape;margin architecture or shape;margin architecture or pubescence or shape;surface pubescence;trichome architecture;trichome some measurement"><b>Basal </b>leaves: blade oblanceolate to obovate, 1.5–5 mm wide, margins usually entire, rarely slightly dentate, ciliate along petiole, surfaces densely to sparsely pubescent, trichomes short-stalked, 3–9-rayed, 0.1–0.2 mm.</span> <span class="statement" id="st-d0_s7" data-properties="cauline leaf atypical quantity;cauline leaf quantity"><b>Cauline </b>leaves: 2–8 (–12), not concealing stem;</span> <span class="statement" id="st-d0_s8" data-properties="blade auricle presence;blade auricle quantity;surface pubescence;surface pubescence">blade auricles absent or 0.1–0.5 mm, surfaces of distalmost leaves glabrous or sparsely pubescent.</span> <span class="statement" id="st-d0_s9" data-properties=""><b>Racemes </b>3–12 (–17) -flowered, usually unbranched.</span> <span class="statement" id="st-d0_s10" data-properties="raceme architecture;raceme architecture;whole-organism orientation;whole-organism orientation;whole-organism course;whole-organism some measurement;whole-organism pubescence;whole-organism pubescence;trichome fixation or orientation;trichome architecture"><b>Fruiting </b>pedicels divaricate-ascending to slightly descending, usually slightly recurved, rarely straight, 2–6 mm, glabrous or sparsely pubescent, trichomes appressed, branched.</span> <span class="statement" id="st-d0_s11" data-properties="flower orientation"><b>Flowers </b>divaricate-ascending at anthesis;</span> <span class="statement" id="st-d0_s12" data-properties="sepal pubescence;sepal pubescence">sepals glabrous or sparsely pubescent;</span> <span class="statement" id="st-d0_s13" data-properties="petal coloration;petal length;petal width">petals purple to lavender, 3.5–6 × 1–1.5 mm;</span> <span class="statement" id="st-d0_s14" data-properties="pollen shape;pollen shape">pollen ellipsoid or spheroid.</span> <span class="statement" id="st-d0_s15" data-properties="fruit orientation;fruit fixation or orientation;fruit architecture;fruit course;fruit course;edge arrangement;edge atypical length;edge length;edge width"><b>Fruits </b>divaricate-ascending to slightly descending, not appressed to rachis, secund, straight or curved, edges parallel, (1.6–) 2–4.4 cm × 1.6–2.3 mm;</span> <span class="statement" id="st-d0_s16" data-properties="valve pubescence">valves glabrous;</span> <span class="statement" id="st-d0_s17" data-properties="ovule atypical quantity;ovule quantity">ovules 28 40 (–44) per ovary;</span> <span class="statement" id="st-d0_s18" data-properties="style some measurement">style 0.1–0.2 mm.</span> <span class="statement" id="st-d0_s19" data-properties="seed architecture or arrangement;seed length;seed width"><b>Seeds </b>uniseriate, 1.3–2 × 1–1.5 mm;</span> <span class="statement" id="st-d0_s20" data-properties="">wing continuous, 0.1–0.5 mm wide.</span> <span class="statement" id="st-d0_s21" data-properties="wing architecture;wing width;2n chromosome quantity">2n = 14.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Aug.
|habitat=Cliffs, talus slopes, and gravelly soil in alpine and subalpine habitats
|elevation=2100-4400 m
|distribution=Alta.;B.C.;Yukon;Alaska;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p>Boechera lemmonii is easily recognized by its combination of secund fruits, mat-forming habit, purplish sepals, and obovate-oblanceolate cauline leaves. Both sexual and apomictic collections are known; further study is needed to determine whether they truly are conspecific. The taxa traditionally treated as Arabis (Boechera) lemmonii vars. depauperata, drepanoloba, and paddoensis are apomictic hybrids here recognized as distinct species (see M. D. Windham and I. A. Al-Shehbaz 2007 for detailed comparison).</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Boechera lemmonii
|authority=(S. Watson) W. A. Weber
|rank=species
|parent rank=genus
|synonyms=Arabis bracteolata;Arabis canescens var. latifolia;Arabis codyi;Arabis egglestonii;Arabis kennedyi;Arabis latifolia;Arabis oreocallis;Arabis polyclada;Arabis semisepulta
|basionyms=Arabis lemmonii
|family=Brassicaceae
|phenology=Flowering Jun–Aug.
|habitat=Cliffs, talus slopes, and gravelly soil in alpine and subalpine habitats
|elevation=2100-4400 m
|distribution=Alta.;B.C.;Yukon;Alaska;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.;Wyo.
|reference=None
|publication title=Phytologia
|publication year=1982
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V7/V7_548.xml
|tribe=Brassicaceae tribe Boechereae
|genus=Boechera
|species=Boechera lemmonii
|2n chromosome quantity=14
|blade auricle presence=absent
|blade auricle quantity=0.1-0.5 mm
|blade shape=oblanceolate;obovate
|blade width=1.5mm;5mm
|caudex texture=woody
|cauline leaf atypical quantity=8;12
|cauline leaf quantity=2;8
|edge arrangement=parallel
|edge atypical length=1.6cm;2cm
|edge length=2cm;4.4cm
|edge width=1.6mm;2.3mm
|flower orientation=divaricate-ascending
|fruit architecture=secund
|fruit course=curved;straight
|fruit fixation or orientation=not appressed
|fruit orientation=divaricate-ascending;slightly descending
|margin architecture or pubescence or shape=ciliate
|margin architecture or shape=dentate;entire
|ovule atypical quantity=40;44
|ovule quantity=28;40
|petal coloration=purple;lavender
|petal length=3.5mm;6mm
|petal width=1mm;1.5mm
|pollen shape=spheroid;ellipsoid
|raceme architecture=unbranched;3-12(-17)-flowered
|seed architecture or arrangement=uniseriate
|seed length=1.3mm;2mm
|seed width=1mm;1.5mm
|sepal pubescence=pubescent;glabrous
|shoot reproduction=sterile
|stem atypical some measurement=2dm;2.5dm
|stem orientation=arising;arising
|stem position=proximal
|stem pubescence=pubescent;glabrous
|stem quantity=1
|stem some measurement=0.5dm;2dm
|style some measurement=0.1mm;0.2mm
|surface pubescence=pubescent;glabrous;pubescent
|trichome architecture=branched;short-stalked;short-stalked
|trichome fixation or orientation=appressed
|trichome pubescence=glabrous
|trichome some measurement=0.1mm;0.2mm
|valve pubescence=glabrous
|whole-organism course=straight
|whole-organism duration=perennial;long-lived
|whole-organism orientation=recurved;divaricate-ascending;slightly descending
|whole-organism pubescence=pubescent;glabrous
|whole-organism reproduction=apomictic;sexual
|whole-organism some measurement=2mm;6mm
|wing architecture=continuous
|wing width=0.1mm;0.5mm
}}<!--

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