View source for Chaenactis xantiana

{{Treatment/ID
|accepted_name=Chaenactis xantiana
|accepted_authority=A. Gray
|publications={{Treatment/Publication
|title=Proc. Amer. Acad. Arts
|place=6: 545. 1865
|year=1865
}}
|common_names=Fleshy pincushion;fleshcolor pincushion;Xantus pincushion
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Chaenactidinae;Chaenactis;Chaenactis sect. Chaenactis;Chaenactis xantiana
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Chaenactidinae]]</div><div class="higher-taxon"><small>genus</small>[[Chaenactis]]</div><div class="higher-taxon"><small>section</small>[[Chaenactis sect. Chaenactis]]</div><div class="higher-taxon"><small>species</small>[[Chaenactis xantiana]]</div></div>
|volume=Volume 21
|mention_page=page 408, 409, 412
|treatment_page=page 410
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism some measurement;whole_organism growth form"><b>Plants </b>10–40 cm;</span> <span class="statement" id="st-d0_s1" data-properties="proximal indument coloration;proximal indument pubescence;proximal indument pubescence">proximal indument grayish, sparsely arachnoid, early glabrescent (usually glabrous by flowering).</span> <span class="statement" id="st-d0_s2" data-properties="stem atypical quantity;stem quantity"><b>Stems </b>mostly 1–5 (–12);</span> <span class="statement" id="st-d0_s3" data-properties="branch position">branches proximal and/or distal.</span> <span class="statement" id="st-d0_s4" data-properties="leaf position;leaf position;leaf atypical some measurement;leaf some measurement"><b>Leaves </b>basal (withering) and cauline, (1–) 2–6 cm;</span> <span class="statement" id="st-d0_s5" data-properties="largest blade arrangement or course or shape;largest blade shape;largest blade shape;largest blade shape;largest blade texture;largest blade shape">largest blades linear or ± elliptic, ± plane or terete, ± succulent, 0–1-pinnately lobed;</span> <span class="statement" id="st-d0_s6" data-properties="lobe atypical quantity;lobe quantity;lobe arrangement or density;lobe shape">lobes 1–2 (–5) pairs, remote, ± terete.</span> <span class="statement" id="st-d0_s7" data-properties="head atypical quantity;head quantity"><b>Heads </b>mostly 1–5 (–7) per stem.</span> <span class="statement" id="st-d0_s8" data-properties="peduncle atypical some measurement;peduncle some measurement;peduncle pubescence"><b>Peduncles </b>1–5 (–8) cm, glabrous (and ± expanded) distally.</span> <span class="statement" id="st-d0_s9" data-properties="involucre shape"><b>Involucres </b>broadly obconic to campanulate.</span> <span class="statement" id="st-d0_s10" data-properties="phyllary length;phyllary some measurement"><b>Phyllaries:</b> longest 10–18 mm (surpassed by florets);</span> <span class="statement" id="st-d0_s11" data-properties="outer phyllary pubescence;apex orientation;apex shape;apex fragility or texture">outer distally tomentulose-puberulent in fruit (proximally glabrous, not stipitate-glandular), apices ± squarrose, blunt, pliant.</span> <span class="statement" id="st-d0_s12" data-properties="corolla coloration;corolla some measurement"><b>Florets:</b> corollas (diurnal) dirty-whitish to pinkish, 6–10 mm (± equal to cypsela lengths, anthers exserted);</span> <span class="statement" id="st-d0_s13" data-properties="peripheral corolla orientation;peripheral corolla architecture;peripheral corolla size">peripheral corollas erect to ascending, actinomorphic, scarcely enlarged.</span> <span class="statement" id="st-d0_s14" data-properties="cypsela some measurement"><b>Cypselae </b>5–9 mm;</span> <span class="statement" id="st-d0_s15" data-properties="scale quantity;series quantity;series size;longest scale some measurement;2n chromosome quantity">pappi of 8 scales in 2, abruptly unequal series, longest scales 5–9 mm. <b>2n</b> = 14.</span><!--

-->{{Treatment/Body
|phenology=Flowering late Mar–Jul.
|habitat=Open, deep, loose sandy (rarely gravelly) soils, arid and semiarid shrublands, chaparral
|elevation=(100–)300–2500 m
|distribution=Ariz.;Calif.;Nev.;Oreg.
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Chaenactis xantiana
|authority=A. Gray
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering late Mar–Jul.
|habitat=Open, deep, loose sandy (rarely gravelly) soils, arid and semiarid shrublands, chaparral
|elevation=(100–)300–2500 m
|distribution=Ariz.;Calif.;Nev.;Oreg.
|reference=None
|publication title=Proc. Amer. Acad. Arts
|publication year=1865
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_1029.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae
|genus=Chaenactis
|section=Chaenactis sect. Chaenactis
|species=Chaenactis xantiana
|2n chromosome quantity=14
|apex fragility or texture=pliant
|apex orientation=squarrose
|apex shape=blunt
|branch position=proximal
|corolla coloration=dirty-whitish;pinkish
|corolla some measurement=6mm;10mm
|cypsela some measurement=5mm;9mm
|head atypical quantity=5;7
|head quantity=1;5
|involucre shape=broadly obconic;campanulate
|largest blade arrangement or course or shape=linear
|largest blade shape=lobed;terete;plane;elliptic
|largest blade texture=succulent
|leaf atypical some measurement=1cm;2cm
|leaf position=cauline;basal
|leaf some measurement=2cm;6cm
|lobe arrangement or density=remote
|lobe atypical quantity=2;5
|lobe quantity=1;2
|lobe shape=terete
|longest scale some measurement=5mm;9mm
|outer phyllary pubescence=tomentulose-puberulent
|peduncle atypical some measurement=5cm;8cm
|peduncle pubescence=glabrous
|peduncle some measurement=1cm;5cm
|peripheral corolla architecture=actinomorphic
|peripheral corolla orientation=erect;ascending
|peripheral corolla size=enlarged
|phyllary length=longest
|phyllary some measurement=10mm;18mm
|proximal indument coloration=grayish
|proximal indument pubescence=glabrescent;arachnoid
|scale quantity=8
|series quantity=2
|series size=unequal
|stem atypical quantity=5;12
|stem quantity=1;5
|whole_organism growth form=plant
|whole_organism some measurement=10cm;40cm
}}<!--

-->[[Category:Treatment]][[Category:Chaenactis sect. Chaenactis]]