View source for Orobanche uniflora subsp. occidentalis

{{Treatment/ID
|accepted_name=Orobanche uniflora subsp. occidentalis
|accepted_authority=(Greene) Abrams ex Ferris
|publications={{Treatment/Publication
|title=Contr. Dudley Herb.
|place=5: 99. 1958
|year=1958
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Aphyllon uniflorum var. occidentale
|authority=Greene
|publication_title=Man. Bot. San Francisco,
|publication_place=285. 1894
}}
|synonyms={{Treatment/ID/Synonym
|name=A. inundatum
|authority=Suksdorf
}} {{Treatment/ID/Synonym
|name=A. minutum
|authority=Suksdorf
}} {{Treatment/ID/Synonym
|name=A. purpureum
|authority=(A. Heller) Holub
}} {{Treatment/ID/Synonym
|name=A. sedi
|authority=Suksdorf
}} {{Treatment/ID/Synonym
|name=Orobanche porphyrantha
|authority=Beck
}} {{Treatment/ID/Synonym
|name=O. sedi
|authority=(Suksdorf) Fernald
}} {{Treatment/ID/Synonym
|name=O. uniflora var. minuta
|authority=(Suksdorf) Beck
}} {{Treatment/ID/Synonym
|name=O. uniflora var. occidentalis
|authority=(Greene) Roy L. Taylor & Macbryde
}} {{Treatment/ID/Synonym
|name=O. uniflora var. purpurea
|authority=(A. Heller) Achey
}} {{Treatment/ID/Synonym
|name=O. uniflora var. sedi
|authority=(Suksdorf) Achey
}} {{Treatment/ID/Synonym
|name=Thalesia minuta
|authority=(Suksdorf) Rydberg
}} {{Treatment/ID/Synonym
|name=T. purpurea
|authority=A. Heller
}} {{Treatment/ID/Synonym
|name=T. sedi
|authority=(Suksdorf) Rydberg
}}
|hierarchy=Orobanchaceae;Orobanche;Orobanche uniflora;Orobanche uniflora subsp. occidentalis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Orobanchaceae]]</div><div class="higher-taxon"><small>genus</small>[[Orobanche]]</div><div class="higher-taxon"><small>species</small>[[Orobanche uniflora]]</div><div class="higher-taxon"><small>subspecies</small>[[Orobanche uniflora subsp. occidentalis]]</div></div>
|volume=Volume 17
|mention_page=page 474
|treatment_page=page 473
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>simple or few-branched basally, sometimes also forked medially, (including pedicels) 3.5–18(–20) cm, stems and inflorescence axes only 1–5(–7) cm. <b>Leaves</b> and bracts usually 1–5 per stem or branch. <b>Pedicels</b> (8–)20–110(–140) mm. <b>Calyx</b> lobes subulate-triangular, 5–15 mm, ca. 2 times as long as tube, tapered abruptly above a broad base to tip, sparsely to moderately glandular-pubescent adaxially. <b>Corollas</b> purple to blue (often with a white throat), yellow, or white, often with darker purple or blue veins, (13–)15–30(–35) mm, throat (1–)2–4(–5) mm diam., palatal folds slender to relatively broad, elongate or short; limb (1–)2–5(–8) mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Aug.
|habitat=Sagebrush, hardwood and coniferous woodlands and forests, moist rock ledges, stream banks, meadows.
|elevation=10–3200 m.
|distribution=Alta.;B.C.;Man.;Sask.;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p>Subspecies occidentalis has been divided into four infraspecific taxa in older literature. Two main groups of plants are the predominant hosts: Crassulaceae (<i>Sedum</i>) and Saxifragaceae (<i>Lithophragma</i>, <i>Saxifraga</i>, <i>Tellima</i>). However, several specimens have recorded or suggested parasitism on a variety of plants, even including mosses (<i>Polytrichum</i>), lycophytes (<i>Selaginella</i>), and ferns (<i>Cryptogramma</i>). Among the miscellaneous angiosperm reports are: Apiaceae (Lomatium, Perideridia), <i>Asteraceae</i> (<i>Antennaria</i>, <i>Artemisia</i>, <i>Balsamorhiza</i>, <i>Coreopsis</i>, <i>Erigeron</i>, <i>Eriophyllum</i>, <i>Packera</i>, <i>Pseudognaphalium</i>, <i>Solidago</i>), <i>Caryophyllaceae</i> (<i>Eremogone</i>), Liliaceae in the sense of this flora (<i>Maianthemum</i>), <i>Poaceae</i> (<i>Bromus</i>, <i>Poa</i>), Polemoniaceae (Leptodactylon), Ranunculaceae (<i>Ranunculus</i>), and Rubiaceae (Galium).</p><!--
--><p>Based on two unusual specimens from Mohave County, Arizona, in which the proximal flowers were partially buried in loose substrate, B. D. Parfitt and M. L. Butterwick (1981) suggested that <i></i></i>subsp.<i><i> occidentalis</i> might be capable of producing cleistogamous flowers. This condition has not been documented elsewhere among the holoparasitic taxa of Orobanchaceae in the region, except in <i>Epifagus</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Orobanche uniflora subsp. occidentalis
|author=
|authority=(Greene) Abrams ex Ferris
|rank=subspecies
|parent rank=species
|synonyms=A. inundatum;A. minutum;A. purpureum;A. sedi;Orobanche porphyrantha;O. sedi;O. uniflora var. minuta;O. uniflora var. occidentalis;O. uniflora var. purpurea;O. uniflora var. sedi;Thalesia minuta;T. purpurea;T. sedi
|basionyms=Aphyllon uniflorum var. occidentale
|family=Orobanchaceae
|phenology=Flowering Apr–Aug.
|habitat=Sagebrush, hardwood and coniferous woodlands and forests, moist rock ledges, stream banks, meadows.
|elevation=10–3200 m.
|distribution=Alta.;B.C.;Man.;Sask.;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
|reference=None
|publication title=Contr. Dudley Herb.
|publication year=1958
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V17/V17_803.xml
|genus=Orobanche
|species=Orobanche uniflora
|subspecies=Orobanche uniflora subsp. occidentalis
}}<!--

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