View source for Layia gaillardioides

{{Treatment/ID
|accepted_name=Layia gaillardioides
|accepted_authority=(Hooker & Arnott) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|publications={{Treatment/Publication
|title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
|place=7: 294. 1838
|year=1838
}}
|basionyms={{Treatment/ID/Basionym
|name=Tridax gaillardioides
|authority=Hooker & Arnott
|rank=species
|publication_title=Bot. Beechey Voy.,
|publication_place=148. 1833 (as galardioides)
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Madiinae;Layia;Layia gaillardioides
|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 Madiinae]]</div><div class="higher-taxon"><small>genus</small>[[Layia]]</div><div class="higher-taxon"><small>species</small>[[Layia gaillardioides]]</div></div>
|volume=Volume 21
|mention_page=page 263, 264
|treatment_page=page 268
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>6–60 cm (self-incompatible); not glandular, often strongly scented. <b>Stems</b> purple-streaked. <b>Leaf</b> blades oblanceolate or lanceolate to linear, 5–120 mm, margins (basal leaves) toothed to pinnatifid. <b>Involucres</b> subglobose to ± campanulate or hemispheric, 4–9+ × 4–12+ mm. <b>Phyllaries</b> 6–18, apices shorter than folded bases. <b>Paleae</b> in 1 series between ray and disc florets. <b>Ray</b> florets 6–18; laminae yellow or bicolored (proximally yellow, distally whitish or pale yellow), 3.5–18 mm. <b>Disc</b> florets 14–100+; corollas 3–5 mm; anthers ± dark purple. <b>Ray</b> cypselae glabrous. <b>Disc</b> pappi 0 or of 15–24 white to rufous or purplish, ± equal bristles or setiform scales 1–4 mm, each proximally plumose, not adaxially woolly. <b>2n</b> = 16.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Aug.
|habitat=Open or semishady sites in woodlands, grasslands, meadows, chaparral, or forests, often on serpentine or sandy soils
|elevation=0–1300 m
|distribution=Calif.
|discussion=<p><i>Layia gaillardioides</i> occurs on the North Coast and in the North Coast Ranges, San Francisco Bay area, and Inner South Coast Ranges, and in the Outer South Coast Ranges (near Cayucos). As treated here (provisionally) and previously, <i>L. gaillardioides</i> is not monophyletic; molecular phylogenetic data have indicated that some lineages of <i>L. gaillardioides</i> are more closely related to <i>L. carnosa</i>, <i>L. hieracioides</i>, and/or <i>L. septentrionalis</i> than to one another (B. G. Baldwin, unpubl.).</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Layia gaillardioides
|authority=(Hooker & Arnott) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Tridax gaillardioides
|family=Asteraceae
|phenology=Flowering Mar–Aug.
|habitat=Open or semishady sites in woodlands, grasslands, meadows, chaparral, or forests, often on serpentine or sandy soils
|elevation=0–1300 m
|distribution=Calif.
|reference=None
|publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
|publication year=1838
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_658.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Madiinae
|genus=Layia
|species=Layia gaillardioides
}}<!--

-->[[Category:Treatment]][[Category:Layia]]