View source for Erigeron pinnatisectus

{{Treatment/ID
|accepted_name=Erigeron pinnatisectus
|accepted_authority=(A. Gray) A. Nelson
|publications={{Treatment/Publication
|title=Bull. Torrey Bot. Club
|place=26: 246. 1899
|year=1899
}}
|common_names=Feather-leaf fleabane
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Erigeron compositus var. pinnatisectus
|authority=A. Gray
|rank=variety
|publication_title=Notes Compositae,
|publication_place=90. 1880
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Erigeron;Erigeron pinnatisectus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Astereae]]</div><div class="higher-taxon"><small>genus</small>[[Erigeron]]</div><div class="higher-taxon"><small>species</small>[[Erigeron pinnatisectus]]</div></div>
|volume=Volume 20
|mention_page=page 262
|treatment_page=page 310
}}<!--

--><span class="statement" id="st-d0_s0" data-properties=""><b>Perennials,</b> 4–11 cm;</span> <span class="statement" id="st-d0_s1" data-properties="whole-organism some measurement;whole-organism architecture;whole-organism duration;caudex branch width;caudex branch texture">taprooted, caudex branches usually relatively thick, woody.</span> <span class="statement" id="st-d0_s2" data-properties="stem orientation;stem pubescence;stem architecture or function or pubescence;stem architecture or function or pubescence"><b>Stems </b>erect, sparsely to moderately hispidulous and minutely glandular, sometimes merely glandular.</span> <span class="statement" id="st-d0_s3" data-properties="leaf position;leaf position"><b>Leaves </b>mostly basal and proximal (persistent);</span> <span class="statement" id="st-d0_s4" data-properties="basal blade shape;basal blade atypical length;basal blade length;basal blade width;margin shape;face pubescence;face pubescence;face architecture or function or pubescence">basal blades spatulate to obovate (often folding), 20–40 (–50) × 5–10 mm, margins pinnatifid (lobes linear), faces usually glabrate, sometimes sparsely hirsute, usually minutely glandular;</span> <span class="statement" id="st-d0_s5" data-properties="cauline blade arrangement or course or shape;cauline blade size;cauline blade presence;margin architecture or shape;margin architecture or pubescence or shape">cauline blades mostly linear, abruptly reduced distally or nearly absent, margins entire, usually coarsely ciliate.</span> <span class="statement" id="st-d0_s6" data-properties="head quantity"><b>Heads </b>1.</span> <span class="statement" id="st-d0_s7" data-properties="involucre length;involucre width"><b>Involucres </b>5.5–8 × 9–13 mm.</span> <span class="statement" id="st-d0_s8" data-properties="phyllarie pubescence;phyllarie architecture or function or pubescence;series quantity"><b>Phyllaries </b>in 3–5 series, sparsely hispidulous to hirsuto-villous, minutely glandular.</span> <span class="statement" id="st-d0_s9" data-properties="ray-floret quantity"><b>Ray-</b>florets 40–70;</span> <span class="statement" id="st-d0_s10" data-properties="corolla coloration;corolla coloration;corolla coloration;corolla coloration;corolla coloration;corolla some measurement;lamina orientation">corollas usually light blue, sometimes slightly purplish, drying bluish or fading lighter, 7–12 mm, laminae reflexing.</span> <span class="statement" id="st-d0_s11" data-properties="disc corolla some measurement"><b>Disc </b>corollas 3.8–4.5 mm.</span> <span class="statement" id="st-d0_s12" data-properties="cypsela some measurement;cypsela architecture;face pubescence"><b>Cypselae </b>1.5–1.8 mm, 2-nerved, faces sparsely strigose;</span> <span class="statement" id="st-d0_s13" data-properties="bristle quantity">pappi: outer of setae, inner (persistent) of 25–30 bristles, with outer setae.</span><!--

-->{{Treatment/Body
|phenology=Flowering late Jun–Aug.
|habitat=Bluffs and ledges, moraines, subalpine and alpine meadows
|elevation=2700–3700(–4000) m
|distribution=Colo.;N.Mex.;Wyo.
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Erigeron pinnatisectus
|authority=(A. Gray) A. Nelson
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Erigeron compositus var. pinnatisectus
|family=Asteraceae
|phenology=Flowering late Jun–Aug.
|habitat=Bluffs and ledges, moraines, subalpine and alpine meadows
|elevation=2700–3700(–4000) m
|distribution=Colo.;N.Mex.;Wyo.
|reference=None
|publication title=Bull. Torrey Bot. Club
|publication year=1899
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V20_676.xml
|tribe=Asteraceae tribe Astereae
|genus=Erigeron
|species=Erigeron pinnatisectus
|basal blade atypical length=40mm;50mm
|basal blade length=20mm;40mm
|basal blade shape=spatulate;obovate
|basal blade width=5mm;10mm
|bristle quantity=25;30
|caudex branch texture=woody
|caudex branch width=thick
|cauline blade arrangement or course or shape=linear
|cauline blade presence=absent
|cauline blade size=reduced
|corolla coloration=fading lighter;bluish;drying;purplish;light blue
|corolla some measurement=7mm;12mm
|cypsela architecture=2-nerved
|cypsela some measurement=1.5mm;1.8mm
|disc corolla some measurement=3.8mm;4.5mm
|face architecture or function or pubescence=glandular
|face pubescence=strigose;hirsute;glabrate
|head quantity=1
|involucre length=5.5mm;8mm
|involucre width=9mm;13mm
|lamina orientation=reflexing
|leaf position=proximal;basal
|margin architecture or pubescence or shape=ciliate
|margin architecture or shape=entire
|margin shape=pinnatifid
|phyllarie architecture or function or pubescence=glandular
|phyllarie pubescence=sparsely hispidulous;hirsuto-villous
|ray-floret quantity=40;70
|series quantity=3;5
|stem architecture or function or pubescence=glandular;glandular
|stem orientation=erect
|stem pubescence=hispidulous
|whole-organism architecture=taprooted
|whole-organism duration=perennial
|whole-organism some measurement=4cm;11cm
}}<!--

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