View source for Psathyrotes annua

{{Treatment/ID
|accepted_name=Psathyrotes annua
|accepted_authority=(Nuttall) A. Gray
|publications={{Treatment/Publication
|title=Smithsonian Contr. Knowl.
|place=5(6): 100. 1853
|year=1853
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Bulbostylis annua
|authority=Nuttall
|rank=species
|publication_title=Proc. Acad. Nat. Sci. Philadelphia
|publication_place=4: 22. 1848
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Gaillardiinae;Psathyrotes;Psathyrotes annua
|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 Gaillardiinae]]</div><div class="higher-taxon"><small>genus</small>[[Psathyrotes]]</div><div class="higher-taxon"><small>species</small>[[Psathyrotes annua]]</div></div>
|volume=Volume 21
|mention_page=
|treatment_page=page 417
}}<!--

--><span class="statement" id="st-d0_s0" data-properties=""><b>Annuals </b>(rarely persisting), 4–15 cm;</span> <span class="statement" id="st-d0_s1" data-properties="whole-organism some measurement;whole-organism pubescence;whole-organism pubescence;whole-organism pubescence;whole-organism duration">glandular-pubescent, weakly tomentose, furfuraceous.</span> <span class="statement" id="st-d0_s2" data-properties="stem orientation;stem orientation;stem architecture"><b>Stems </b>erect and spreading, much branched.</span> <span class="statement" id="st-d0_s3" data-properties="leaf-blade shape;leaf-blade length;leaf-blade width;margin shape"><b>Leaf-</b>blades rounded-deltate to reniform, 4–18 × 6–26 mm, margins of some or all toothed.</span> <span class="statement" id="st-d0_s4" data-properties="peduncle some measurement"><b>Peduncles </b>1–28 mm.</span> <span class="statement" id="st-d0_s5" data-properties="involucre shape;involucre some measurement"><b>Involucres </b>turbinate, 6–9 mm.</span> <span class="statement" id="st-d0_s6" data-properties="phyllary quantity;outer phyllary life cycle;outer phyllary duration;outer phyllary quantity;outer phyllary shape;tip orientation;inner phyllary life cycle;inner phyllary quantity;inner phyllary arrangement or course or shape;tip orientation"><b>Phyllaries </b>13–19, outer falling or persistent, 5–6, lanceolate to lance-linear, tips erect, inner falling, 8–13, lance-linear, tips erect.</span> <span class="statement" id="st-d0_s7" data-properties="floret quantity"><b>Florets </b>10–21;</span> <span class="statement" id="st-d0_s8" data-properties="corolla coloration;corolla coloration;corolla some measurement">corollas yellow, often purplish at tips, 4–5 mm.</span> <span class="statement" id="st-d0_s9" data-properties="cypsela some measurement"><b>Cypselae </b>2–3 mm;</span> <span class="statement" id="st-d0_s10" data-properties="pappus some measurement;bristle quantity;bristle size;series quantity;2n chromosome quantity">pappi of 35–50, subequal bristles in 1 series, 1–4 mm. <b>2n</b> = 34.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–fall.
|habitat=Alkaline soils of washes and playas
|elevation=800–2000 m
|distribution=Ariz.;Calif.;Idaho;Nev.;Utah.
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Psathyrotes annua
|authority=(Nuttall) A. Gray
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Bulbostylis annua
|family=Asteraceae
|phenology=Flowering spring–fall.
|habitat=Alkaline soils of washes and playas
|elevation=800–2000 m
|distribution=Ariz.;Calif.;Idaho;Nev.;Utah.
|reference=None
|publication title=Smithsonian Contr. Knowl.
|publication year=1853
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_1044.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae
|genus=Psathyrotes
|species=Psathyrotes annua
|2n chromosome quantity=34
|bristle quantity=35;50
|bristle size=subequal
|corolla coloration=purplish;yellow
|corolla some measurement=4mm;5mm
|cypsela some measurement=2mm;3mm
|floret quantity=10;21
|inner phyllary arrangement or course or shape=lance-linear
|inner phyllary life cycle=falling
|inner phyllary quantity=8;13
|involucre shape=turbinate
|involucre some measurement=6mm;9mm
|leaf-blade length=4mm;18mm
|leaf-blade shape=rounded-deltate;reniform
|leaf-blade width=6mm;26mm
|margin shape=toothed
|outer phyllary duration=persistent
|outer phyllary life cycle=falling
|outer phyllary quantity=5;6
|outer phyllary shape=lanceolate;lance-linear
|pappus some measurement=1mm;4mm
|peduncle some measurement=1mm;28mm
|phyllary quantity=13;19
|series quantity=1
|stem architecture=branched
|stem orientation=spreading;erect
|tip orientation=erect;erect
|whole-organism duration=annual
|whole-organism pubescence=furfuraceous;tomentose;glandular-pubescent
|whole-organism some measurement=4cm;15cm
}}<!--

-->[[Category:Treatment]][[Category:Psathyrotes]]