View source for Tetradymia spinosa

{{Treatment/ID
|accepted_name=Tetradymia spinosa
|accepted_authority=Hooker & Arnott
|publications={{Treatment/Publication
|title=Bot. Beechey Voy.,
|place=360. 1839
|year=1839
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Senecioneae;Tetradymia;Tetradymia spinosa
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Senecioneae]]</div><div class="higher-taxon"><small>genus</small>[[Tetradymia]]</div><div class="higher-taxon"><small>species</small>[[Tetradymia spinosa]]</div></div>
|volume=Volume 20
|mention_page=page 630
|treatment_page=page 632
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> 10–100 cm. <b>Stems</b> 1–5+, erect or spreading, spiny, evenly pannose. <b>Leaves</b>: primaries forming recurved spines, 5–25 mm; secondaries linear-filiform to spatulate, 3–25 (× 1–2) mm, glabrous or glabrescent. <b>Heads</b> 1–2 (in axils of spines). <b>Peduncles</b> 5–30 mm. <b>Involucres</b> hemispheric, 8–12 mm. <b>Phyllaries</b> 4–6, oblong to ovate. <b>Florets</b> 5–8; corollas pale to bright yellow, 6–10 mm. <b>Cypselae</b> 6–8 mm, copiously pilose (hairs 9–12 mm); pappi of ca. 25, subulate scales 6–9 mm. <b>2n</b> = 60.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring.
|habitat=Usually sandy soils of alkali sinks, shadscale scrub, pinyon-juniper woodlands
|elevation=800–2400 m
|distribution=Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah.;Wyo.
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Tetradymia spinosa
|authority=Hooker & Arnott
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering spring.
|habitat=Usually sandy soils of alkali sinks, shadscale scrub, pinyon-juniper woodlands
|elevation=800–2400 m
|distribution=Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah.;Wyo.
|reference=None
|publication title=Bot. Beechey Voy.,
|publication year=1839
|special status=Illustrated;Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_1422.xml
|tribe=Asteraceae tribe Senecioneae
|genus=Tetradymia
|species=Tetradymia spinosa
}}<!--

-->[[Category:Treatment]][[Category:Tetradymia]]