View source for Isotria

{{Treatment/ID
|accepted_name=Isotria
|accepted_authority=Rafinesque
|publications={{Treatment/Publication
|title=Med. Repos., hexade
|place=2, 5: 357. 1808
|year=1808
}}
|common_names=Whorled pogonia orchid
|basionyms=
|synonyms=
|hierarchy=Orchidaceae;Orchidaceae subfam. Vanilloideae;Orchidaceae tribe Vanilleae;Orchidaceae (tribe Vanilleae) subtribe Pogoniinae;Isotria
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Orchidaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Orchidaceae subfam. Vanilloideae]]</div><div class="higher-taxon"><small>tribe</small>[[Orchidaceae tribe Vanilleae]]</div><div class="higher-taxon"><small>subtribe</small>[[Orchidaceae (tribe Vanilleae) subtribe Pogoniinae]]</div><div class="higher-taxon"><small>genus</small>[[Isotria]]</div></div>
|etymology=Greek iso, equal, and tri, 3; probably referring to 3 sepals of equal size and shape
|volume=Volume 26
|mention_page=page 496
|treatment_page=page 511
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, terrestrial, winter dormant. <b>Roots</b> long, slender, hairy with mycorrhizae. <b>Stems</b> simple, hollow, fleshy, smooth, glaucous. <b>Leaves</b> (2–)5(–6), appearing whorled. <b>Inflorescences</b> terminal; bracts absent. <b>Flowers</b> 1–2, resupinate, erect, yellowish green to white, yellow, and purple, subsessile to pedicellate; sepals of same color, linear-oblanceolate to lanceolate, of equal size; petals oblanceolate, elliptic-obovate, or elliptic-lanceolate, enclosing column; lip apically 3-lobed, lateral lobes triangular, margins involute; callus forming fleshy medial crest; column white, apex denticulate; anther operculate; pollinia 2, hinged, soft, mealy; rostellum obscure; pollen in tetrads, granular; ovary green, slender. <b>Fruits</b> capsules, commonly persistent through following growing season, erect, ellipsoid-cylindric, dehiscent in fall. <b>Seeds</b> 1.2 × 0.2 mm. <b>x</b> = 9.</span><!--

-->{{Treatment/Body
|distribution=e North America.
|discussion=<p>Species 2 (2 in the flora).</p>
|tables=
|references={{Treatment/Reference
|id=ames1905a
|text=Ames, O. 1905–1922. Orchidaceae: Illustrations and Studies of the Family Orchidaceae Issuing from the Ames Botanical Laboratory…. 7 vols. Boston and New York. Vol. 7.
}}{{Treatment/Reference
|id=homoya1977a
|text=Homoya, M. A. 1977. The Distribution and Ecology of the Genus Isotria in Illinois. Master’s thesis. Southern Illinois University.
}}{{Treatment/Reference
|id=mehrhoff1983b
|text=Mehrhoff, L. A. 1983. Pollination in the genus Isotria (Orchidaceae). Amer. J. Bot. 70: 1444–1453.
}}
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Sepals green to light green, less than 30 mm; lip light yellowish green to pale greenish white, streaked with green; pedicel of mature capsule 5–17(–20) mm; stem and leaves pale grayish green.
|[[Isotria medeoloides|Isotria medeoloides]]
|-id=key-0-1
|1
|Sepals purplish brown, greater than 30 mm; lip yellowish green to white, streaked with purple; pedicel of mature capsule 20–55 mm; stem purplish to brownish green; leaves green to dark green.
|[[Isotria verticillata|Isotria verticillata]]
|}
</div></div><!--

-->{{#Taxon:
name=Isotria
|author=Loyal A. Mehrhoff;Michael A. Homoya
|authority=Rafinesque
|rank=genus
|parent rank=subtribe
|synonyms=
|basionyms=
|family=Orchidaceae
|distribution=e North America.
|reference=ames1905a;homoya1977a;mehrhoff1983b
|publication title=Med. Repos., hexade
|publication year=1808
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V26/V26_1043.xml
|subfamily=Orchidaceae subfam. Vanilloideae
|tribe=Orchidaceae tribe Vanilleae
|subtribe=Orchidaceae (tribe Vanilleae) subtribe Pogoniinae
|genus=Isotria
}}<!--

-->[[Category:Treatment]][[Category:Orchidaceae (tribe Vanilleae) subtribe Pogoniinae]]