View source for Xanthisma spinulosum var. chihuahuanum

{{Treatment/ID
|accepted_name=Xanthisma spinulosum var. chihuahuanum
|accepted_authority=(B. L. Turner & R. L. Hartman) D. R. Morgan & R. L. Hartman
|publications={{Treatment/Publication
|title=Sida
|place=20: 1408. 2003
|year=2003
}}
|basionyms={{Treatment/ID/Basionym
|name=Machaeranthera pinnatifida var. chihuahuana
|authority=B. L. Turner & R. L. Hartman
|publication_title=Wrightia
|publication_place=5: 311. 1976
}}
|synonyms={{Treatment/ID/Synonym
|name=Haplopappus spinulosus var. chihuahuanus
|authority=(B. L. Turner & R. L. Hartman) Gandhi
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Xanthisma;Xanthisma sect. Sideranthus;Xanthisma spinulosum;Xanthisma spinulosum var. chihuahuanum
|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>[[Xanthisma]]</div><div class="higher-taxon"><small>section</small>[[Xanthisma sect. Sideranthus]]</div><div class="higher-taxon"><small>species</small>[[Xanthisma spinulosum]]</div><div class="higher-taxon"><small>variety</small>[[Xanthisma spinulosum var. chihuahuanum]]</div></div>
|volume=Volume 20
|mention_page=page 391
|treatment_page=page 392
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 30–50 cm, often woody at base. <b>Stems</b> stiffly erect, usually much branched in proximal 1/2–2/3; mid internodes 2–5 mm. <b>Leaves</b> numerous, concentrated in proximal ± 1/2, spreading to loosely ascending, often much reduced distally, margins of proximal pinnatifid to 2-pinnatifid, of distal coarsely dentate to ± entire, lobes linear to lanceolate, 3–5 mm, faces usually hairy, rarely glabrous, often densely stipitate-glandular. <b>Heads</b> 2–10+ in diffuse arrays. <b>Peduncles</b> relatively terminal and lateral, 0.5–2 cm. <b>Involucres</b> 12–15 mm wide. <b>2n</b> = 8, 16.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–fall.
|habitat=Clayey to rocky washes, prairies, plains, roadsides
|elevation=1000–1800 m
|distribution=Ariz.;N.Mex.;Tex.;Mexico (Chihuahua;Coahuila;Durango;Sonora).
|discussion=<p>Variety chihuahuanum is a Chihuahuan Desert taxon that extends into the southern United States.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Xanthisma spinulosum var. chihuahuanum
|author=
|authority=(B. L. Turner & R. L. Hartman) D. R. Morgan & R. L. Hartman
|rank=variety
|parent rank=species
|synonyms=Haplopappus spinulosus var. chihuahuanus
|basionyms=Machaeranthera pinnatifida var. chihuahuana
|family=Asteraceae
|phenology=Flowering spring–fall.
|habitat=Clayey to rocky washes, prairies, plains, roadsides
|elevation=1000–1800 m
|distribution=Ariz.;N.Mex.;Tex.;Mexico (Chihuahua;Coahuila;Durango;Sonora).
|reference=None
|publication title=Sida
|publication year=2003
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_891.xml
|tribe=Asteraceae tribe Astereae
|genus=Xanthisma
|section=Xanthisma sect. Sideranthus
|species=Xanthisma spinulosum
|variety=Xanthisma spinulosum var. chihuahuanum
}}<!--

-->[[Category:Treatment]][[Category:Xanthisma spinulosum]]