View source for Boechera laevigata

{{Treatment/ID
|accepted_name=Boechera laevigata
|accepted_authority=(Muhlenberg ex Willdenow) Al-Shehbaz
|publications={{Treatment/Publication
|title=Novon
|place=13: 386. 2003
|year=2003
}}
|basionyms={{Treatment/ID/Basionym
|name=Turritis laevigata
|authority=Muhlenberg ex Willdenow
|rank=species
|publication_title=Sp. Pl.
|publication_place=3: 543. 1801
}}
|synonyms={{Treatment/ID/Synonym
|name=Arabis hastata
|authority=Eaton
|rank=species
}} {{Treatment/ID/Synonym
|name=Arabis heterophylla
|authority=Nuttall
|rank=species
}} {{Treatment/ID/Synonym
|name=Arabis laevigata
|authority=(Muhlenberg ex Willdenow) Poiret
|rank=species
}} {{Treatment/ID/Synonym
|name=Arabis lyrifolia
|authority=de Candolle
|rank=species
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Boechereae;Boechera;Boechera laevigata
|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 laevigata]]</div></div>
|volume=Volume 7
|mention_page=page 355, 368, 391
|treatment_page=page 386
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="">Biennials;</span> <span class="statement" id="st-d0_s1" data-properties="">short-lived;</span> <span class="statement" id="st-d0_s2" data-properties="whole-organism duration;whole-organism reproduction;whole-organism duration">sexual;</span> <span class="statement" id="st-d0_s3" data-properties="caudex prominence">caudex not evident.</span> <span class="statement" id="st-d0_s4" data-properties="stem quantity;stem orientation;stem atypical some measurement;stem some measurement;stem pubescence"><b>Stems </b>1 per plant, arising from center of rosette near ground surface, (1.5–) 3–11 dm, glabrous throughout.</span> <span class="statement" id="st-d0_s5" data-properties="blade shape;blade width;blade width;margin architecture or shape;margin architecture or shape;margin shape;trichome size;surface pubescence;surface pubescence;trichome architecture;trichome some measurement"><b>Basal </b>leaves: blade obovate to oblanceolate, (4–) 10–40 mm wide, margins serrate or dentate, ciliate-mucronate on teeth, trichomes often minute, surfaces glabrous or sparsely pubescent, trichomes simple, 0.1–0.6 mm.</span> <span class="statement" id="st-d0_s6" data-properties="cauline leaf quantity"><b>Cauline </b>leaves: 7–15, often concealing stem proximally;</span> <span class="statement" id="st-d0_s7" data-properties="blade auricle atypical some measurement;blade auricle some measurement;surface pubescence">blade auricles 3–12 (–17) mm, surfaces of distalmost leaves glabrous.</span> <span class="statement" id="st-d0_s8" data-properties=""><b>Racemes </b>16–45-flowered, sometimes branched.</span> <span class="statement" id="st-d0_s9" data-properties="raceme architecture;raceme architecture;raceme orientation;raceme course;raceme some measurement;raceme pubescence"><b>Fruiting </b>pedicels suberect to divaricate-ascending, straight to slightly curved, 5–23 mm, glabrous.</span> <span class="statement" id="st-d0_s10" data-properties="flower orientation"><b>Flowers </b>ascending at anthesis;</span> <span class="statement" id="st-d0_s11" data-properties="sepal pubescence">sepals glabrous;</span> <span class="statement" id="st-d0_s12" data-properties="petal coloration;petal length;petal width;petal pubescence">petals white, 3–5 × 1–1.5 mm, glabrous;</span> <span class="statement" id="st-d0_s13" data-properties="pollen shape">pollen ellipsoid.</span> <span class="statement" id="st-d0_s14" data-properties="fruit orientation;fruit fixation or orientation;fruit architecture;fruit course;edge arrangement;edge atypical length;edge length;edge width"><b>Fruits </b>divaricate-ascending, not appressed to rachis, rarely somewhat secund, curved, edges parallel, (4–) 6–11.7 cm × 1–2 mm;</span> <span class="statement" id="st-d0_s15" data-properties="valve pubescence">valves glabrous;</span> <span class="statement" id="st-d0_s16" data-properties="ovule quantity">ovules 50–80 per ovary;</span> <span class="statement" id="st-d0_s17" data-properties="style atypical some measurement;style some measurement">style 0.1–0.7 (–1) mm.</span> <span class="statement" id="st-d0_s18" data-properties="seed architecture or arrangement;seed length;seed width"><b>Seeds </b>uniseriate, 1.2–2.2 × 0.8–1.4 mm;</span> <span class="statement" id="st-d0_s19" data-properties="">wing continuous, 0.1–0.3 mm wide distally.</span> <span class="statement" id="st-d0_s20" data-properties="wing architecture;wing width;2n chromosome quantity">2n = 14.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–May.
|habitat=Rocky bluffs, cedar glades, wooded hillsides, floodplains
|elevation=100-500 m
|distribution=Ont.;Que.;Ala.;Ark.;Conn.;Del.;D.C.;Ga.;Ill.;Ind.;Iowa;Ky.;Md.;Mass.;Mich.;Mo.;N.H.;N.J.;N.Y.;N.C.;Ohio;Okla.;Pa.;S.C.;Tenn.;Vt.;Va.;W.Va.;Wis.
|discussion=<p>The taxon sometimes treated as Arabis laevigata var. missouriensis is here recognized as a separate species (Boechera missouriensis) based on its significantly longer petals (5–10 versus 3–5 mm) and distinctive, lyrate-pinnatifid basal leaves that persist well beyond anthesis.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Boechera laevigata
|authority=(Muhlenberg ex Willdenow) Al-Shehbaz
|rank=species
|parent rank=genus
|synonyms=Arabis hastata;Arabis heterophylla;Arabis laevigata;Arabis lyrifolia
|basionyms=Turritis laevigata
|family=Brassicaceae
|phenology=Flowering Mar–May.
|habitat=Rocky bluffs, cedar glades, wooded hillsides, floodplains
|elevation=100-500 m
|distribution=Ont.;Que.;Ala.;Ark.;Conn.;Del.;D.C.;Ga.;Ill.;Ind.;Iowa;Ky.;Md.;Mass.;Mich.;Mo.;N.H.;N.J.;N.Y.;N.C.;Ohio;Okla.;Pa.;S.C.;Tenn.;Vt.;Va.;W.Va.;Wis.
|reference=None
|publication title=Novon
|publication year=2003
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V7/V7_545.xml
|tribe=Brassicaceae tribe Boechereae
|genus=Boechera
|species=Boechera laevigata
|2n chromosome quantity=14
|blade auricle atypical some measurement=12mm;17mm
|blade auricle some measurement=3mm;12mm
|blade shape=obovate;oblanceolate
|blade width=10mm;40mm
|caudex prominence=not evident
|cauline leaf quantity=7;15
|edge arrangement=parallel
|edge atypical length=4cm;6cm
|edge length=6cm;11.7cm
|edge width=1mm;2mm
|flower orientation=ascending
|fruit architecture=secund
|fruit course=curved
|fruit fixation or orientation=not appressed
|fruit orientation=divaricate-ascending
|margin architecture or shape=dentate;serrate
|margin shape=ciliate-mucronate
|ovule quantity=50;80
|petal coloration=white
|petal length=3mm;5mm
|petal pubescence=glabrous
|petal width=1mm;1.5mm
|pollen shape=ellipsoid
|raceme architecture=branched;16-45-flowered
|raceme course=straight;slightly curved
|raceme orientation=suberect;divaricate-ascending
|raceme pubescence=glabrous
|raceme some measurement=5mm;23mm
|seed architecture or arrangement=uniseriate
|seed length=1.2mm;2.2mm
|seed width=0.8mm;1.4mm
|sepal pubescence=glabrous
|stem atypical some measurement=1.5dm;3dm
|stem orientation=arising
|stem pubescence=glabrous
|stem quantity=1
|stem some measurement=3dm;11dm
|style atypical some measurement=0.7mm;1mm
|style some measurement=0.1mm;0.7mm
|surface pubescence=glabrous;pubescent;glabrous
|trichome architecture=simple
|trichome size=minute
|trichome some measurement=0.1mm;0.6mm
|valve pubescence=glabrous
|whole-organism duration=biennial;short-lived
|whole-organism reproduction=sexual
|wing architecture=continuous
|wing width=0.1mm;0.3mm
}}<!--

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