View source for Mentzelia cronquistii

{{Treatment/ID
|accepted_name=Mentzelia cronquistii
|accepted_authority=H. J. Thompson & Prigge
|publications={{Treatment/Publication
|title=Great Basin Naturalist
|place=46: 550, figs. 2, 3A,B, 4A. 1986
|year=1986
}}
|common_names=Cronquist’s blazingstar
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Mentzelia marginata var. cronquistii
|authority=(H. J. Thompson & Prigge) N. H. Holmgren & P. K. Holmgren
|rank=variety
}} {{Treatment/ID/Synonym
|name=Nuttallia cronquistii
|authority=(H. J. Thompson & Prigge) W. A. Weber
|rank=species
}}
|hierarchy=Loasaceae;Mentzelia;Mentzelia sect. Bartonia;Mentzelia cronquistii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Loasaceae]]</div><div class="higher-taxon"><small>genus</small>[[Mentzelia]]</div><div class="higher-taxon"><small>section</small>[[Mentzelia sect. Bartonia]]</div><div class="higher-taxon"><small>species</small>[[Mentzelia cronquistii]]</div></div>
|volume=Volume 12
|mention_page=page 499
|treatment_page=page 506
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism growth form"><b>Plants </b>biennial, candelabra-form.</span> <span class="statement" id="st-d0_s1" data-properties="stem architecture or arrangement or growth form;stem orientation;stem course"><b>Stems </b>solitary, erect, straight;</span> <span class="statement" id="st-d0_s2" data-properties="branch position or shape;branch position or shape;stem architecture or shape">branches distal or along entire stem, proximal longer than distal, all usually extending to near the distal end of plant, antrorse, straight;</span> <span class="statement" id="st-d0_s3" data-properties="proximal end length or size;proximal end orientation;proximal end course;proximal end pubescence">hairy.</span> <span class="statement" id="st-d0_s4" data-properties="blade length;blade atypical width;blade width;blade width;blade atypical some measurement;blade some measurement"><b>Leaves:</b> blade 21–101 × 4–10.7 (–19.3) mm, widest intersinus distance 1.8–7.3 (–12.6) mm;</span> <span class="statement" id="st-d0_s5" data-properties="proximal leaf shape;proximal leaf shape;proximal leaf shape;proximal leaf shape;proximal leaf shape;margin architecture or shape;tooth orientation;tooth atypical some measurement;tooth some measurement;tooth some measurement;lobe quantity;lobe orientation;lobe atypical some measurement;lobe some measurement;lobe some measurement">proximal oblanceolate, lanceolate, or elliptic, margins dentate to pinnate, teeth or lobes 8–28, perpendicular to leaf axis, 1.2–6 (–9) mm, always some more than 4 mm;</span> <span class="statement" id="st-d0_s6" data-properties="distal leaf shape;distal leaf shape;distal leaf shape;distal leaf shape;distal leaf shape;base architecture or fixation;margin architecture or shape;tooth orientation;tooth atypical some measurement;tooth some measurement;lobe quantity;lobe orientation;lobe atypical some measurement;lobe some measurement">distal oblanceolate, elliptic, or lanceolate, base not clasping, margins dentate to pinnate, teeth or lobes 6–18, perpendicular to leaf axis, 1.1–5 (–6.9) mm;</span> <span class="statement" id="st-d0_s7" data-properties="grappling-hook architecture;grappling-hook architecture;trichome architecture or shape;adaxial surface architecture or shape;grappling-hook architecture;grappling-hook trichome architecture">abaxial surface with simple grappling-hook, complex grappling-hook, and needlelike trichomes, adaxial surface with simple grappling-hook, needlelike, and occasionally complex grappling-hook trichomes.</span> <span class="statement" id="st-d0_s8" data-properties="margin shape"><b>Bracts:</b> margins entire or toothed to pinnate.</span> <span class="statement" id="st-d0_s9" data-properties="petal coloration;petal length;petal width;apex shape;apex shape;apex pubescence"><b>Flowers:</b> petals golden yellow, 9–16.6 × 2.5–5.1 mm, apex usually rounded, rarely acute, hairy abaxially;</span> <span class="statement" id="st-d0_s10" data-properties="stamen coloration;stamen quantity;outermost stamen architecture;all shape;all shape;all length;all width">stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 7.3–13.2 × 1.8–4.3 mm, usually without, rarely with anthers, second whorl with anthers;</span> <span class="statement" id="st-d0_s11" data-properties="anther dehiscence;epidermis relief;epidermis relief">anthers straight after dehiscence, epidermis papillate or not;</span> <span class="statement" id="st-d0_s12" data-properties="style some measurement">styles 6.5–10 mm.</span> <span class="statement" id="st-d0_s13" data-properties="capsule shape;capsule atypical length;capsule length;capsule width;base shape;base shape"><b>Capsules </b>cupshaped, 5.9–10.6 (–11.4) × 5–7.6 mm, base tapering to rounded, not longitudinally ridged.</span> <span class="statement" id="st-d0_s14" data-properties="cell-wall orientation;cell-wall shape"><b>Seeds:</b> coat anticlinal cell-walls wavy, papillae 8–13 per cell.</span> <span class="statement" id="st-d0_s15" data-properties="papilla quantity;2n chromosome quantity">2n = 20.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Nov.
|habitat=Sandy and rocky soils, washes, roadside banks, steep slopes.
|elevation=800–2300 m.
|distribution=Ariz.;Colo.;N.Mex.;Utah.
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Mentzelia cronquistii
|authority=H. J. Thompson & Prigge
|rank=species
|parent rank=section
|synonyms=Mentzelia marginata var. cronquistii;Nuttallia cronquistii
|basionyms=
|family=Loasaceae
|phenology=Flowering May–Nov.
|habitat=Sandy and rocky soils, washes, roadside banks, steep slopes.
|elevation=800–2300 m.
|distribution=Ariz.;Colo.;N.Mex.;Utah.
|reference=None
|publication title=Great Basin Naturalist
|publication year=1986
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V12/V12_518.xml
|genus=Mentzelia
|section=Mentzelia sect. Bartonia
|species=Mentzelia cronquistii
|2n chromosome quantity=20
|adaxial surface architecture or shape=needlelike
|all length=7.3mm;13.2mm
|all shape=clawed;spatulate
|all width=1.8mm;4.3mm
|anther dehiscence=straight
|apex pubescence=hairy
|apex shape=acute;rounded
|base architecture or fixation=not clasping
|base shape=ridged;tapering;rounded
|blade atypical some measurement=7.3mm;12.6mm
|blade atypical width=10.7mm;19.3mm
|blade length=21mm;101mm
|blade some measurement=1.8mm;7.3mm
|blade width=widest;4mm;10.7mm
|branch position or shape=along entire stem;distal
|capsule atypical length=10.6mm;11.4mm
|capsule length=5.9mm;10.6mm
|capsule shape=cup-shaped
|capsule width=5mm;7.6mm
|cell-wall orientation=anticlinal
|cell-wall shape=wavy
|distal leaf shape=lanceolate;elliptic;lanceolate;elliptic;oblanceolate
|epidermis relief=not;papillate
|grappling-hook architecture=simple;complex;simple
|grappling-hook trichome architecture=complex
|lobe atypical some measurement=5mm;6.9mm
|lobe orientation=perpendicular;perpendicular
|lobe quantity=6;18
|lobe some measurement=1.1mm;5mm
|margin architecture or shape=dentate;pinnate
|margin shape=toothed;pinnate
|outermost stamen architecture=petaloid
|papilla quantity=8;13
|petal coloration=golden yellow
|petal length=9mm;16.6mm
|petal width=2.5mm;5.1mm
|proximal end course=straight
|proximal end length or size=longer
|proximal end orientation=antrorse
|proximal end pubescence=hairy
|proximal leaf shape=elliptic;lanceolate;elliptic;lanceolate;oblanceolate
|stamen coloration=golden yellow
|stamen quantity=5
|stem architecture or arrangement or growth form=solitary
|stem architecture or shape=entire
|stem course=straight
|stem orientation=erect
|style some measurement=6.5mm;10mm
|tooth atypical some measurement=5mm;6.9mm
|tooth orientation=perpendicular;perpendicular
|tooth some measurement=1.1mm;5mm
|trichome architecture or shape=needlelike
|whole_organism duration=biennial
|whole_organism growth form=plant
}}<!--

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