View source for Mucronea perfoliata

{{Treatment/ID
|accepted_name=Mucronea perfoliata
|accepted_authority=(A. Gray) A. Heller
|publications={{Treatment/Publication
|title=Muhlenburgia
|place=2: 23. 1905
|year=1905
}}
|common_names=Perfoliate spineflower
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Chorizanthe perfoliata
|authority=A. Gray
|rank=species
|publication_title=Proc. Boston Soc. Nat. Hist.
|publication_place=7: 148. 1859
}}
|synonyms={{Treatment/ID/Synonym
|name=Mucronea perfoliata var. opaca
|authority=Hoover
|rank=variety
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Eriogonoideae;Mucronea;Mucronea perfoliata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Polygonaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Polygonaceae subfam. Eriogonoideae]]</div><div class="higher-taxon"><small>genus</small>[[Mucronea]]</div><div class="higher-taxon"><small>species</small>[[Mucronea perfoliata]]</div></div>
|volume=Volume 5
|mention_page=page 470
|treatment_page=page 471
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism atypical length;whole_organism atypical length;whole_organism length;whole_organism width;whole_organism growth form"><b>Plants </b>(0.2–) 0.3–2 (–3) ×0.5–5 dm.</span> <span class="statement" id="st-d0_s1" data-properties="petiole prominence"><b>Leaves:</b> petiole inconspicuous;</span> <span class="statement" id="st-d0_s2" data-properties="blade shape;blade atypical length;blade length;blade atypical width;blade atypical width;blade width">blade spatulate, (1–) 2–5 × (0.2–) 0.3–1.2 (–2) cm.</span> <span class="statement" id="st-d0_s3" data-properties="bract quantity;bract orientation;bract architecture;bract architecture;bract length;bract shape;bract atypical some measurement;bract some measurement;apex shape"><b>Inflorescences:</b> bracts 3, spreading to nearly erect, perfoliate, becoming 1-sided and weakly perfoliate apically, connate for nearly their entire length, orbiculate, 0.5–1 (–2) cm, apex acute to obtuse;</span> <span class="statement" id="st-d0_s4" data-properties="awn atypical some measurement;awn some measurement">awns 0.3–1.2 (–1.5) mm.</span> <span class="statement" id="st-d0_s5" data-properties="involucre quantity;involucre shape;involucre architecture or shape;involucre arrangement or relief;involucre shape;involucre atypical some measurement;involucre some measurement"><b>Involucres </b>1, 4-angled, distinctly ribbed and usually corrugate, often strongly ventricose, 3–5 (–6) mm;</span> <span class="statement" id="st-d0_s6" data-properties="tooth quantity;tooth orientation;tooth arrangement;tooth pubescence;tooth pubescence">teeth 4, spreading to strongly divergent, glandular or strongly hirsute;</span> <span class="statement" id="st-d0_s7" data-properties="awn course;awn atypical some measurement;awn some measurement">awns straight, (0.3–) 0.5–1.2 mm.</span> <span class="statement" id="st-d0_s8" data-properties="flower quantity"><b>Flowers </b>1;</span> <span class="statement" id="st-d0_s9" data-properties="perianth atypical some measurement;perianth some measurement;perianth pubescence">perianth 1.5–3 (–3.5) mm, pubescent abaxially;</span> <span class="statement" id="st-d0_s10" data-properties="tepal shape;tepal architecture or relief;tepal shape;tepal shape;tepal shape">tepals narrowly oblanceolate, erose or fimbriate apically, infrequently entire or 2-lobed;</span> <span class="statement" id="st-d0_s11" data-properties="stamen quantity">stamens 9;</span> <span class="statement" id="st-d0_s12" data-properties="filament atypical some measurement;filament some measurement">filaments 1–2.5 (–3) mm;</span> <span class="statement" id="st-d0_s13" data-properties="anther atypical some measurement;anther some measurement">anthers 0.5–0.8 (–0.9) mm.</span> <span class="statement" id="st-d0_s14" data-properties="achene some measurement;2n chromosome quantity;2n chromosome quantity"><b>Achenes </b>2–3 mm. <b>2n</b> = 38, 40.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Jul.
|habitat=Sandy to gravelly flats and slopes, mixed grassland, saltbush, creosote bush, and chaparral communities, pine-oak woodlands
|elevation=100-1600(-1900) m
|distribution=Calif.
|discussion=<p>Mucronea perfoliata is found in the Coast and Transverse ranges from Stanislaus County south to Ventura County, and in the San Joaquin Valley from Kings County south to the Tehachapi Mountains and the northwestern edge of the Mojave Desert in Kern County.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Mucronea perfoliata
|authority=(A. Gray) A. Heller
|rank=species
|parent rank=genus
|synonyms=Mucronea perfoliata var. opaca
|basionyms=Chorizanthe perfoliata
|family=Polygonaceae
|phenology=Flowering Mar–Jul.
|habitat=Sandy to gravelly flats and slopes, mixed grassland, saltbush, creosote bush, and chaparral communities, pine-oak woodlands
|elevation=100-1600(-1900) m
|distribution=Calif.
|reference=None
|publication title=Muhlenburgia
|publication year=1905
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V5/V5_990.xml
|subfamily=Polygonaceae subfam. Eriogonoideae
|genus=Mucronea
|species=Mucronea perfoliata
|2n chromosome quantity=40;38
|achene some measurement=2mm;3mm
|anther atypical some measurement=0.8mm;0.9mm
|anther some measurement=0.5mm;0.8mm
|apex shape=acute;obtuse
|awn atypical some measurement=0.3mm;0.5mm
|awn course=straight
|awn some measurement=0.5mm;1.2mm
|blade atypical length=1cm;2cm
|blade atypical width=1.2cm;2cm
|blade length=2cm;5cm
|blade shape=spatulate
|blade width=0.3cm;1.2cm
|bract architecture=perfoliate;perfoliate
|bract atypical some measurement=1cm;2cm
|bract length=connate
|bract orientation=spreading;nearly erect
|bract quantity=3
|bract shape=orbiculate
|bract some measurement=0.5cm;1cm
|filament atypical some measurement=2.5mm;3mm
|filament some measurement=1mm;2.5mm
|flower quantity=1
|involucre architecture or shape=ribbed
|involucre arrangement or relief=corrugate
|involucre atypical some measurement=5mm;6mm
|involucre quantity=1
|involucre shape=ventricose;4-angled
|involucre some measurement=3mm;5mm
|perianth atypical some measurement=3mm;3.5mm
|perianth pubescence=pubescent
|perianth some measurement=1.5mm;3mm
|petiole prominence=inconspicuous
|stamen quantity=9
|tepal architecture or relief=erose
|tepal shape=2-lobed;entire;fimbriate;oblanceolate
|tooth arrangement=divergent
|tooth orientation=spreading
|tooth pubescence=hirsute;glandular
|tooth quantity=4
|whole_organism atypical length=2dm;3dm
|whole_organism growth form=plant
|whole_organism length=0.3dm;2dm
|whole_organism width=0.5dm;5dm
}}<!--

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