View source for Lasthenia gracilis

{{Treatment/ID
|accepted_name=Lasthenia gracilis
|accepted_authority=(de Candolle) Greene
|publications={{Treatment/Publication
|title=Man. Bot. San Francisco,
|place=206. 1894
|year=1894
}}
|common_names=Common goldfields
|basionyms={{Treatment/ID/Basionym
|name=Burrielia gracilis
|authority=de Candolle
|rank=species
|publication_title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
|publication_place=5: 664. 1836
}}
|synonyms={{Treatment/ID/Synonym
|name=Baeria chrysostoma subsp. gracilis
|authority=(de Candolle) Ferris
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Baeria gracilis
|authority=(de Candolle) A. Gray
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Baeriinae;Lasthenia;Lasthenia sect. Amphiachaenia;Lasthenia gracilis
|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 Baeriinae]]</div><div class="higher-taxon"><small>genus</small>[[Lasthenia]]</div><div class="higher-taxon"><small>section</small>[[Lasthenia sect. Amphiachaenia]]</div><div class="higher-taxon"><small>species</small>[[Lasthenia gracilis]]</div></div>
|volume=Volume 21
|mention_page=page 337, 338
|treatment_page=page 340
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> to 40 cm. <b>Stems</b> erect or decumbent, usually branched distally (sometimes proximally in desert forms), ± hairy (more so distally). <b>Leaves</b> linear to oblanceolate, 8–40(–70) × 1–3(–6) mm, (± fleshy in coastal forms) margins entire or with 3–5+ teeth, faces ± hairy. <b>Involucres</b> campanulate or hemispheric, 5–10 mm. <b>Phyllaries</b> (persistent or falling with cypselae) 4–13 (in 1 series), ovate-lanceolate to oblong, ± hairy. <b>Receptacles</b> conic, muricate, glabrous. <b>Ray</b> florets 6–13; laminae oblong, 5–10 mm. <b>Anther</b> appendages deltate. <b>Cypselae</b> black to gray, ± linear, to 3 mm, glabrous or hairy; pappi usually of (2–)4(–6) opaque, white (aging to brown), ovate-lanceolate, aristate scales, sometimes 0. <b>2n</b> = 16, 32.</span><!--

-->{{Treatment/Body
|phenology=Flowering Feb–Jun.
|habitat=Mostly open sites (virtually all habitats)
|elevation=0–1500 m
|distribution=Ariz.;Calif.;Mexico (Baja California;Sonora).
|discussion=<p>D. D. Keck (1959c) said of <i>Lasthenia gracilis</i> (as Baeria chrysostoma <i></i>subsp.<i> gracilis</i>), “The most abundant composite in the state [of California].” It is widespread throughout California, central Arizona, the Channel Islands, Guadalupe Island, and Baja California. It is variable and is sometimes similar to <i>L. californica </i>subsp.<i> californica</i>, from which it differs in its opaque, white, ovate-lanceolate, aristate pappus scales. Coastal forms of <i>L. gracilis</i> tend to have shorter, wider, fleshy leaves. <i>Lasthenia gracilis</i> often occurs with other <i>Lasthenia</i> species.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Lasthenia gracilis
|authority=(de Candolle) Greene
|rank=species
|parent rank=section
|synonyms=Baeria chrysostoma subsp. gracilis;Baeria gracilis
|basionyms=Burrielia gracilis
|family=Asteraceae
|phenology=Flowering Feb–Jun.
|habitat=Mostly open sites (virtually all habitats)
|elevation=0–1500 m
|distribution=Ariz.;Calif.;Mexico (Baja California;Sonora).
|reference=None
|publication title=Man. Bot. San Francisco,
|publication year=1894
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V21_846.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Baeriinae
|genus=Lasthenia
|section=Lasthenia sect. Amphiachaenia
|species=Lasthenia gracilis
}}<!--

-->[[Category:Treatment]][[Category:Lasthenia sect. Amphiachaenia]]