View source for Arida parviflora

{{Treatment/ID
|accepted_name=Arida parviflora
|accepted_authority=(A. Gray) D. R. Morgan & R. L. Hartman
|publications={{Treatment/Publication
|title=Sida
|place=20: 1414. 2003
|year=2003
}}
|common_names=Small-flower tansy-aster
|basionyms={{Treatment/ID/Basionym
|name=Machaeranthera parviflora
|authority=A. Gray
|rank=species
|publication_title=Smithsonian Contr. Knowl.
|publication_place=3(5): 90. 1852
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Arida;Arida parviflora
|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>[[Arida]]</div><div class="higher-taxon"><small>species</small>[[Arida parviflora]]</div></div>
|volume=Volume 20
|mention_page=page 402
|treatment_page=page 405
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>or short-lived perennials, 10–50 cm; taproots slender to ± thickened. <b>Stems</b> 1–15+, mostly erect to ascending, rarely reclining, slender, much branched distally or throughout, glaucous, glabrous or sparsely gland-dotted from midstem distally. <b>Leaves</b> mostly cauline; sessile; blades lanceolate to oblong, reduced distally, 10–30 × 2–7 mm, bases often clasping, margins shallowly or deeply pinnatifid to 2-pinnatifid, toothed, or entire, apices apiculate to rounded, faces glabrous to sparsely stipitate-glandular; distal ascending to appressed. <b>Heads</b> borne singly (terminal), in loose, leafy, corymbiform arrays. <b>Involucres</b> hemispheric, 3–5 × 4–6 mm (fresh). <b>Phyllaries</b> in 3–4 series, ± appressed, lanceolate to oblanceolate, 1–4 mm, bases whitish, margins ± entire, apices green or purple, mostly acute, minutely glandular. <b>Ray</b> florets 10–30+; laminae violet-blue to lavender, rarely whitish, 6–8 mm, coiled after flowering. <b>Disc</b> florets 18–40+; corollas yellow, 4–5 mm. <b>Cypselae</b> oblanceolate, 1.5–2 mm, 8–10 per face, faces moderately sericeous; pappi setose; ray 0 or white, 1–1.5 mm; disc whitish, 4–5.5 mm. <b>2n</b> = 10.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Oct.
|habitat=Saline flats, playas, swales, sandy areas, river margins
|elevation=1100–1700 m
|distribution=Ariz.;Colo.;N.Mex.;Tex.;Utah;Mexico (Chihuahua;Coahuila).
|discussion=<p><i>Arida parviflora</i> is recognized by its wiry stems, small, deeply pinnatifid leaves, rather small involucres, and ray cypselae usually with pappi. This species is often described as being an annual; however, some specimens have a large, woody root and well-developed branching crown like a perennial plant.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Arida parviflora
|authority=(A. Gray) D. R. Morgan & R. L. Hartman
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Machaeranthera parviflora
|family=Asteraceae
|phenology=Flowering Jul–Oct.
|habitat=Saline flats, playas, swales, sandy areas, river margins
|elevation=1100–1700 m
|distribution=Ariz.;Colo.;N.Mex.;Tex.;Utah;Mexico (Chihuahua;Coahuila).
|reference=None
|publication title=Sida
|publication year=2003
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V20_925.xml
|tribe=Asteraceae tribe Astereae
|genus=Arida
|species=Arida parviflora
}}<!--

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