View source for Cypripedium candidum

{{Treatment/ID
|accepted_name=Cypripedium candidum
|accepted_authority=Muhlenberg ex Willdenow
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=4(1): 142. 1805
|year=1805
}}
|common_names=White lady’s-slipper
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Orchidaceae;Orchidaceae subfam. Cypripedioideae;Cypripedium;Cypripedium candidum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Orchidaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Orchidaceae subfam. Cypripedioideae]]</div><div class="higher-taxon"><small>genus</small>[[Cypripedium]]</div><div class="higher-taxon"><small>species</small>[[Cypripedium candidum]]</div></div>
|volume=Volume 26
|mention_page=page 500, 504
|treatment_page=page 503
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>erect, 11–40 cm. <b>Leaves</b> 3–4(–5), on proximal or middle portion of stem, alternate, erect-ascending; blade lanceolate or elliptic to oblanceolate, 7–20 × 0.9–5.3 cm. <b>Flowers</b> 1(–2); sepals green to pale brownish yellow, usually spotted and striped with reddish brown or madder; dorsal sepal ovate to ovate-lance-acuminate, 15–35 × 7–13 mm; lateral sepals connate; synsepal 13–35 × 7–15 mm; petals spreading to somewhat deflexed, same color as sepals, spirally twisted or spiral-undulate, lanceolate to linear-lanceolate, 23–46 × 3–5 mm; lip white, obovoid or oblance-ovoid to oblance-fusiform, 17–27 mm; orifice basal, 10–15 mm; staminode lanceoloid or oblong-lanceoloid to ellipsoid. <b>2n</b> = 20.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jul.
|habitat=Mesic to wet prairies and fen meadows, very rarely open wooded slopes
|elevation=70–700 m
|distribution=Man.;Ont.;Sask.;Ala.;Ill.;Ind.;Iowa.;Ky.;Md.;Mich.;Minn.;Mo.;Nebr.;N.J.;N.Y.;N.Dak.;Ohio;Pa.;S.Dak.;Wis.
|discussion=<p><i>Cypripedium candidum</i> begins blooming while the shoots are still emerging from the soil; at that time they are small, with the leaves clustered near the base. The plants enlarge greatly during and after anthesis, and the leaves may assume a more median position. The orifice of the lip in <i>C. candidum</i> is distinctive, the apical margin forming an acute angle. This feature is shared with <i>C. montanum</i> and differs from the commonly obtuse margin in <i>C. parviflorum</i>; hence, it can aid determination of discolored herbarium specimens. Hybrids of <i>C. candidum</i> and <i>C. parviflorum</i> have been designated C. ×andrewsii A. M. Fuller. See 11. <i>C. parviflorum</i> for a general discussion of hybridization and variation within and between related species.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Cypripedium candidum
|authority=Muhlenberg ex Willdenow
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Orchidaceae
|phenology=Flowering Apr–Jul.
|habitat=Mesic to wet prairies and fen meadows, very rarely open wooded slopes
|elevation=70–700 m
|distribution=Man.;Ont.;Sask.;Ala.;Ill.;Ind.;Iowa.;Ky.;Md.;Mich.;Minn.;Mo.;Nebr.;N.J.;N.Y.;N.Dak.;Ohio;Pa.;S.Dak.;Wis.
|reference=None
|publication title=Sp. Pl.
|publication year=1805
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V26/V26_1027.xml
|subfamily=Orchidaceae subfam. Cypripedioideae
|genus=Cypripedium
|species=Cypripedium candidum
}}<!--

-->[[Category:Treatment]][[Category:Cypripedium]]