View source for Stebbinsoseris heterocarpa

{{Treatment/ID
|accepted_name=Stebbinsoseris heterocarpa
|accepted_authority=(Nuttall) K. L. Chambers
|publications={{Treatment/Publication
|title=Amer. J. Bot.
|place=78: 1024. 1991
|year=1991
}}
|common_names=Grassland or derived silverpuffs
|basionyms={{Treatment/ID/Basionym
|name=Uropappus heterocarpus
|authority=Nuttall
|publication_title=Trans. Amer. Philos. Soc., n. s.
|publication_place=7: 425. 1841
}}
|synonyms={{Treatment/ID/Synonym
|name=Microseris heterocarpa
|authority=(Nuttall) K. L. Chambers
}}
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Stebbinsoseris;Stebbinsoseris heterocarpa
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Cichorieae]]</div><div class="higher-taxon"><small>genus</small>[[Stebbinsoseris]]</div><div class="higher-taxon"><small>species</small>[[Stebbinsoseris heterocarpa]]</div></div>
|volume=Volume 19
|mention_page=
|treatment_page=page 347
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Peduncles </b>5–60 cm. <b>Involucres</b> 6–30 mm. <b>Florets</b> 10–125; corollas yellow or white. <b>Cypselae</b> gray, straw-colored, brown, or violet (dark purplish in southwest California), narrowly truncate-fusiform to columnar, 4.5–12 mm, each filled by embryo or distal 0.5–3 mm vacant and more slender than proximal part, apices slightly widened at bases of pappi; pappi 7–19 mm, scale bodies 4–11 mm, faces usually glabrous, rarely villous, aristae 3–8 mm. <b>2n</b> = 36.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jun.
|habitat=Clay, gravelly, or rocky soils, open flats and hillsides, grasslands, oak woodlands, chaparral, coastal scrub, desert (rarely), roadsides
|elevation=0–1000 m
|distribution=Ariz.;Calif.;Mexico (Baja California).
|discussion=<p><i>Stebbinsoseris heterocarpa</i> is widespread in cismontane California and disjunct to Gila and Yavapai counties, Arizona. Variation in enzymatic restriction sites in its chloroplast DNA and nuclear rDNA (R. S. Wallace and R. K. Jansen 1995) indicates that <i>S. heterocarpa</i> has arisen independently three or more times from hybrids of <i>Microseris douglasii</i> × <i>Uropappus lindleyi</i>. Reflecting this multiple origin, the species is more variable in pappi and cypsela size, color, and shape than <i>S. decipiens</i>, from which it is largely allopatric. Because <i>M. douglasii </i>subsp.<i> tenella</i> and <i>M. bigelovii</i> intergrade in some coastal areas, forms of <i>S. heterocarpa</i> having such hybrids as their maternal parent would be difficult to distinguish from <i>S. decipiens</i> (K. L. Chambers 1955; U. Lohwasser and F. R. Blattner 2004).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Stebbinsoseris heterocarpa
|author=
|authority=(Nuttall) K. L. Chambers
|rank=species
|parent rank=genus
|synonyms=Microseris heterocarpa
|basionyms=Uropappus heterocarpus
|family=Asteraceae
|phenology=Flowering Apr–Jun.
|habitat=Clay, gravelly, or rocky soils, open flats and hillsides, grasslands, oak woodlands, chaparral, coastal scrub, desert (rarely), roadsides
|elevation=0–1000 m
|distribution=Ariz.;Calif.;Mexico (Baja California).
|reference=None
|publication title=Amer. J. Bot.
|publication year=1991
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V19_542.xml
|tribe=Asteraceae tribe Cichorieae
|genus=Stebbinsoseris
|species=Stebbinsoseris heterocarpa
}}<!--

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