View source for Rorippa crystallina

{{Treatment/ID
|accepted_name=Rorippa crystallina
|accepted_authority=Rollins
|publications={{Treatment/Publication
|title=Rhodora
|place=64: 326, plate 1271. 1962
|year=1962
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Nasturtium crystallinum
|authority=(Rollins) G. A. Mulligan
|rank=species
}}
|hierarchy=Brassicaceae;Brassicaceae tribe Cardamineae;Rorippa;Rorippa crystallina
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brassicaceae]]</div><div class="higher-taxon"><small>tribe</small>[[Brassicaceae tribe Cardamineae]]</div><div class="higher-taxon"><small>genus</small>[[Rorippa]]</div><div class="higher-taxon"><small>species</small>[[Rorippa crystallina]]</div></div>
|volume=Volume 7
|mention_page=page 495
|treatment_page=page 499
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="">Perennials;</span> <span class="statement" id="st-d0_s1" data-properties="">(rhizomatous);</span> <span class="statement" id="st-d0_s2" data-properties="whole-organism pubescence;whole-organism duration">glabrous throughout.</span> <span class="statement" id="st-d0_s3" data-properties="stem orientation;stem architecture;stem some measurement"><b>Stems </b>(simple from base), erect, branched distally, 1–4 dm.</span> <span class="statement" id="st-d0_s4" data-properties=""><b>Basal </b>leaves rosulate;</span> <span class="statement" id="st-d0_s5" data-properties="basal leaf arrangement">[petiole (1.5–) 3–7.7 (–12) cm];</span> <span class="statement" id="st-d0_s6" data-properties="margin shape">blade [(2.5–) 4–14 (–22) cm × (10–) 20–40 (–70) mm], margins dentate to crenate.</span> <span class="statement" id="st-d0_s7" data-properties="cauline leaf architecture;cauline leaf architecture"><b>Cauline </b>leaves petiolate or subsessile;</span> <span class="statement" id="st-d0_s8" data-properties="blade shape;blade length;blade width;base shape;base shape;margin architecture or shape">blade ovate to lanceolate, 2.5–7 cm × 4–13 mm (smaller distally), base cuneate, not auriculate, margins dentate.</span> <span class="statement" id="st-d0_s9" data-properties=""><b>Racemes </b>elongated.</span> <span class="statement" id="st-d0_s10" data-properties="raceme length;raceme arrangement;raceme orientation;raceme course;raceme atypical some measurement;raceme some measurement"><b>Fruiting </b>pedicels divaricate to horizontal, straight, 12–20 (–26) mm.</span> <span class="statement" id="st-d0_s11" data-properties="flower orientation;flower shape;flower length;flower width"><b>Flowers:</b> sepals (deciduous after anthesis), erect, oblong, 4–5 × 1–1.5 mm;</span> <span class="statement" id="st-d0_s12" data-properties="petal coloration;petal shape;petal length;petal width">petals whitish, oblanceolate, 6–8 × 2.5–3 mm;</span> <span class="statement" id="st-d0_s13" data-properties="median filament some measurement">median filaments 3–4.2 mm;</span> <span class="statement" id="st-d0_s14" data-properties="anther shape;anther some measurement">anthers oblong, 0.8–1.2 mm.</span> <span class="statement" id="st-d0_s15" data-properties="fruits silique course;fruits silique course;fruits silique arrangement or course or shape;fruits silique length;fruits silique width"><b>Fruits </b>siliques, straight or slightly curved, linear, 14–26 × 2–2.8 mm;</span> <span class="statement" id="st-d0_s16" data-properties="ovule quantity">ovules 28–40 per ovary;</span> <span class="statement" id="st-d0_s17" data-properties="style some measurement">style 0.3–1 mm.</span> <span class="statement" id="st-d0_s18" data-properties=""><b>Seeds </b>uniseriate, brown, ovoid, 1.6–2 mm (1.2–1.5 mm diam.), colliculate.</span> <span class="statement" id="st-d0_s19" data-properties="seed architecture or arrangement;seed coloration;seed shape;seed some measurement;seed relief;2n chromosome quantity">2n = 32.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Jul.
|habitat=Meadows, marshes, peaty soils, ditches
|distribution=N.W.T.
|discussion=<p>In his original description of Rorippa crystallina, Rollins considered the presence of calcium oxalate crystals in the plant to be a unique feature, but this was later found to be an artifact of treating the plants with formaldehyde (R. L. Stuckey 1972; R. C. Rollins 1993). Characterization of the species as native to Canada was questioned by G. A. Mulligan and W. L. Cody (1995), who believed that it was probably introduced from China. There is no species of mustard from elsewhere in the world that closely resembles R. crystallina, and it should be considered a Canadian endemic.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Rorippa crystallina
|authority=Rollins
|rank=species
|parent rank=genus
|synonyms=Nasturtium crystallinum
|basionyms=
|family=Brassicaceae
|phenology=Flowering Jun–Jul.
|habitat=Meadows, marshes, peaty soils, ditches
|distribution=N.W.T.
|reference=None
|publication title=Rhodora
|publication year=1962
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V7/V7_775.xml
|tribe=Brassicaceae tribe Cardamineae
|genus=Rorippa
|species=Rorippa crystallina
|2n chromosome quantity=32
|anther shape=oblong
|anther some measurement=0.8mm;1.2mm
|basal leaf arrangement=rosulate
|base shape=not auriculate;cuneate
|blade length=2.5cm;7cm
|blade shape=ovate;lanceolate
|blade width=4mm;13mm
|cauline leaf architecture=subsessile;petiolate
|flower length=4mm;5mm
|flower orientation=erect
|flower shape=oblong
|flower width=1mm;1.5mm
|fruits silique arrangement or course or shape=linear
|fruits silique course=curved;straight
|fruits silique length=14mm;26mm
|fruits silique width=2mm;2.8mm
|margin architecture or shape=dentate
|margin shape=dentate;crenate
|median filament some measurement=3mm;4.2mm
|ovule quantity=28;40
|petal coloration=whitish
|petal length=6mm;8mm
|petal shape=oblanceolate
|petal width=2.5mm;3mm
|raceme arrangement=divaricate
|raceme atypical some measurement=20mm;26mm
|raceme course=straight
|raceme length=elongated
|raceme orientation=horizontal
|raceme some measurement=12mm;20mm
|seed architecture or arrangement=uniseriate
|seed coloration=brown
|seed relief=colliculate
|seed shape=ovoid
|seed some measurement=1.6mm;2mm
|stem architecture=branched
|stem orientation=erect
|stem some measurement=1dm;4dm
|style some measurement=0.3mm;1mm
|whole-organism duration=perennial
|whole-organism pubescence=glabrous
}}<!--

-->[[Category:Treatment]][[Category:Rorippa]]