View source for Listera ovata

{{Treatment/ID
|accepted_name=Listera ovata
|accepted_authority=(Linnaeus) R. Brown
|publications={{Treatment/Publication
|title=in W. Aiton and W. T. Aiton, Hortus Kew.
|place=5: 201. 1813
|year=1813
}}
|common_names=Common twayblade
|basionyms={{Treatment/ID/Basionym
|name=Ophrys ovata
|authority=Linnaeus
|publication_title=Sp. Pl.
|publication_place=2: 946. 1753
}}
|synonyms={{Treatment/ID/Synonym
|name=Diphryllum ovatum
|authority=(Linnaeus) Kuntze
}} {{Treatment/ID/Synonym
|name=Distomaea ovata
|authority=(Linnaeus) Spenner
}} {{Treatment/ID/Synonym
|name=Epipactis ovata
|authority=(Linnaeus) Crantz
}} {{Treatment/ID/Synonym
|name=Helleborine ovata
|authority=(Linnaeus) F. W. Schmidt
}} {{Treatment/ID/Synonym
|name=Neottia latifolia
|authority=Richard
}} {{Treatment/ID/Synonym
|name=Neottia ovata
|authority=(Linnaeus) Bluff & Fingerhut
}}
|hierarchy=Orchidaceae;Orchidaceae subfam. Epidendroideae;Orchidaceae tribe Neottieae;Orchidaceae (tribe Neottieae) subtribe Limodorinae;Listera;Listera ovata
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Orchidaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Orchidaceae subfam. Epidendroideae]]</div><div class="higher-taxon"><small>tribe</small>[[Orchidaceae tribe Neottieae]]</div><div class="higher-taxon"><small>subtribe</small>[[Orchidaceae (tribe Neottieae) subtribe Limodorinae]]</div><div class="higher-taxon"><small>genus</small>[[Listera]]</div><div class="higher-taxon"><small>species</small>[[Listera ovata]]</div></div>
|volume=Volume 26
|mention_page=page 587
|treatment_page=page 591
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>20–60 cm. <b>Stem</b> green, stout, succulent, glabrous. <b>Leaves</b>: blade yellow-green to green, ovate-elliptic, 10–17 × 10–12 cm, apex acute. <b>Inflorescences</b> 10–100-flowered, lax to dense, 10–50 cm; floral bracts lanceolate, 3 × 1 mm; peduncle and rachis glandular-pubescent. <b>Flowers</b> yellowish green; pedicels stout, 3–4 mm, slightly glandular-pubescent; sepals and petals projecting forward, connivent, forming hood over column; dorsal sepal ovate, concave, 5–6 × 2–3 mm, apex obtuse; lateral sepals ovate, concave, falcate, 4 × 2–3 mm, apex obtuse; petals linear, concave, 4 × 1 mm, apex obtuse; lip acutely deflexed near base, sessile, linear, apical 1/2 expanded, cleft into bluntly rounded lobes separated by tooth in sinus; disc with longitudinal thickened ridge leading to deflection, 8–10 × 4 mm; column short, 2 × 1.5 mm. <b>Capsules</b> semierect, ellipsoid, 10 × 6 mm. <b>2n</b> = 32, 34, 35, 36, 37, 38, 40, 42.</span><!--

-->{{Treatment/Body
|phenology=Flowering late Jun–Jul.
|habitat=Moist rich humus, or in disturbed areas
|elevation=700–800 m
|distribution=Ont.;Eurasia.
|discussion=<p><i>Listera ovata</i> is a large, robust, aggressive, and exceedingly common orchid weed found in many kinds of habitat throughout Europe into Siberia and India. It may have the potential to become a weedy orchid in North America just as <i>Epipactis helleborine</i>. <i>Listera ovata</i> was used by Charles Darwin in his investigation and description of the method of cross-fertilization in the genus <i>Listera</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Listera ovata
|author=
|authority=(Linnaeus) R. Brown
|rank=species
|parent rank=genus
|synonyms=Diphryllum ovatum;Distomaea ovata;Epipactis ovata;Helleborine ovata;Neottia latifolia;Neottia ovata
|basionyms=Ophrys ovata
|family=Orchidaceae
|phenology=Flowering late Jun–Jul.
|habitat=Moist rich humus, or in disturbed areas
|elevation=700–800 m
|distribution=Ont.;Eurasia.
|introduced=true
|reference=None
|publication title=in W. Aiton and W. T. Aiton, Hortus Kew.
|publication year=1813
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V26/V26_1205.xml
|subfamily=Orchidaceae subfam. Epidendroideae
|tribe=Orchidaceae tribe Neottieae
|subtribe=Orchidaceae (tribe Neottieae) subtribe Limodorinae
|genus=Listera
|species=Listera ovata
}}<!--

-->[[Category:Treatment]][[Category:Listera]]