View source for Leucanthemum maximum

{{Treatment/ID
|accepted_name=Leucanthemum maximum
|accepted_authority=(Ramond) 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=6: 46. 1838
|year=1838
}}
|common_names=Shasta daisy
|basionyms={{Treatment/ID/Basionym
|name=Chrysanthemum maximum
|authority=Ramond
|publication_title=Bull. Sci. Soc. Philom. Paris
|publication_place=2: 140. 1800
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Anthemideae;Leucanthemum;Leucanthemum maximum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Anthemideae]]</div><div class="higher-taxon"><small>genus</small>[[Leucanthemum]]</div><div class="higher-taxon"><small>species</small>[[Leucanthemum maximum]]</div></div>
|volume=Volume 19
|mention_page=page 559
|treatment_page=page 558
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 20–60(–80+) cm. <b>Stems</b> simple or distally branched. <b>Basal</b> leaves: petioles 50–80(–200+) mm, expanding into obovate to spatulate blades 50–80(–120+) × 15–25(–35+) mm, margins not lobed, usually toothed, rarely entire. <b>Cauline</b> leaves petiolate or sessile; blades oblanceolate to lanceolate or linear, 50–120+ × 8–22+ mm, margins of mid-stem leaves usually entire proximally, regularly serrate distally. <b>Involucres</b> 18–28+ mm diam. <b>Phyllaries</b> (the larger) 2–3 mm wide. <b>Ray</b> florets 21–34+; laminae 20–30(–40+) mm. <b>Ray</b> cypselae 2–3(–4) mm, apices usually bare, rarely obscurely auriculate. <b>2n</b> = 90, 108.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–summer.
|habitat=Disturbed sites, meadows, seeps, clearings
|elevation=0–1500+ m
|distribution=Ala.;Calif.;Wyo.;w Europe (widely cultivated;sparingly adventive).
|discussion=<p>The name Shasta daisy of horticulture is associated also with <i>Leucanthemum</i> ×superbum (Bergmans ex J. Ingram) Bergmans ex D. H. Kent, which is generally thought to have been derived from hybrids between <i>L. maximum</i> and <i>L. lacustre</i>. Cultivars of “Shasta daisy” number in the dozens, including “single,” “double,” “quill,” and “shaggy” forms; they may be encountered as waifs or persisting from abandoned plantings.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Leucanthemum maximum
|author=
|authority=(Ramond) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Chrysanthemum maximum
|family=Asteraceae
|phenology=Flowering spring–summer.
|habitat=Disturbed sites, meadows, seeps, clearings
|elevation=0–1500+ m
|distribution=Ala.;Calif.;Wyo.;w Europe (widely cultivated;sparingly adventive).
|introduced=true
|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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V19_977.xml
|tribe=Asteraceae tribe Anthemideae
|genus=Leucanthemum
|species=Leucanthemum maximum
}}<!--

-->[[Category:Treatment]][[Category:Leucanthemum]]