View source for Orobanche multiflora

{{Treatment/ID
|accepted_name=Orobanche multiflora
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=Proc. Acad. Nat. Sci. Philadelphia
|place=4: 22. 1848
|year=1848
}}
|common_names=Many-flower broomrape
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Aphyllon multiflorum
|authority=(Nuttall) A. Gray
|rank=species
}} {{Treatment/ID/Synonym
|name=Myzorrhiza multiflora
|authority=(Nuttall) Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Orobanche ludoviciana subsp. multiflora
|authority=(Nuttall) L. T. Collins ex H. L. White & W. C. Holmes
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=O. ludoviciana var. multiflora
|authority=(Nuttall) Beck
|rank=variety
}}
|hierarchy=Orobanchaceae;Orobanche;Orobanche multiflora
|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 multiflora]]</div></div>
|volume=Volume 17
|mention_page=page 470, 477, 483
|treatment_page=page 482
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism architecture;whole_organism architecture;whole_organism some measurement;whole_organism size;whole_organism growth form;base size"><b>Plants </b>simple or few-branched, 7–27 cm, relatively slender, base usually not enlarged.</span> <span class="statement" id="st-d0_s1" data-properties="root prominence;root size;root architecture;root architecture"><b>Roots </b>usually inconspicuous, slender, unbranched or branched.</span> <span class="statement" id="st-d0_s2" data-properties="leaf quantity;leaf fixation or orientation"><b>Leaves </b>numerous, appressed;</span> <span class="statement" id="st-d0_s3" data-properties="blade shape;blade shape;blade some measurement;margin architecture or shape;margin architecture or pubescence or shape;apex shape;surface pubescence">blade lanceolate or broadly triangular, 3–10 mm, margins entire, sometimes ciliate, apex acute, surfaces glabrous.</span> <span class="statement" id="st-d0_s4" data-properties="inflorescences raceme architecture;inflorescences raceme coloration;inflorescences raceme coloration;inflorescences raceme coloration;inflorescences raceme coloration;inflorescences raceme coloration;inflorescences raceme coloration;inflorescences raceme coloration;inflorescences raceme coloration;inflorescences raceme coloration;inflorescences raceme coloration;inflorescences raceme coloration;inflorescences raceme architecture;inflorescences raceme pubescence;inflorescences raceme coloration;inflorescences raceme pubescence"><b>Inflorescences </b>racemes, sometimes thyrsoid, pale-yellow, white, or tan proximally, purple or pale lavender distally, sometimes branched, densely glandular-pubescent, appearing whitish or canescent, sometimes with axillary branches;</span> <span class="statement" id="st-d0_s5" data-properties="flower quantity">flowers numerous;</span> <span class="statement" id="st-d0_s6" data-properties="bract orientation;bract shape;bract some measurement;apex shape;apex shape;apex pubescence">bracts erect to reflexed, ± lanceolate, 11–20 mm, apex acute or acuminate, densely glandular-pubescent.</span> <span class="statement" id="st-d0_s7" data-properties="pedicel some measurement;pedicel height or length or size"><b>Pedicels </b>0–5 mm, much shorter than plant axis;</span> <span class="statement" id="st-d0_s8" data-properties="bracteole quantity">bracteoles 2.</span> <span class="statement" id="st-d0_s9" data-properties="calyx coloration;calyx coloration or density;calyx architecture or shape;calyx some measurement;calyx shape;lobe quantity;lobe shape;lobe pubescence"><b>Flowers:</b> calyx pallid externally, purple internally, weakly bilaterally symmetric, 15–21 mm, deeply divided into 5 lobes, lobes lanceolate-attenuate, densely glandular-pubescent;</span> <span class="statement" id="st-d0_s10" data-properties="corolla some measurement;tube coloration;tube coloration;tube coloration;tube coloration;tube coloration;tube size;tube shape;tube pubescence;vein coloration or density">corolla 22–36 mm, tube white to pallid or cream, sometimes pinkish or light purplish tinged, rarely light yellow distally, sometimes with purple veins, constricted above ovary, only slightly bent forward, densely pubescent;</span> <span class="statement" id="st-d0_s11" data-properties="fold prominence;fold coloration;fold pubescence">palatal folds prominent, yellow, densely pubescent;</span> <span class="statement" id="st-d0_s12" data-properties="lip coloration;lip coloration;lip coloration;lip coloration;lip coloration;lip coloration;lip coloration;lip coloration;lip coloration;lip coloration;lip coloration;lip coloration;lip coloration;vein coloration or density;abaxial lip orientation;abaxial lip some measurement;lobe shape;apex shape;apex shape;adaxial lip orientation;adaxial lip orientation;adaxial lip some measurement;lobe shape;apex shape">lips externally white to pallid or cream, sometimes pinkish or light purplish tinged, internally pink or purple, sometimes white with purple veins, rarely light yellow, abaxial lip spreading, 5–9 mm, lobes broadly lanceolate, apex obtuse or rounded, adaxial lip erect or reflexed, 6–12 mm, lobes oblong, apex rounded;</span> <span class="statement" id="st-d0_s13" data-properties="filament pubescence;anther position;anther pubescence">filaments pilose with ring of hairs at insertion, anthers included, woolly.</span> <span class="statement" id="st-d0_s14" data-properties="capsule shape;capsule some measurement"><b>Capsules </b>ovoid, 8–12 mm.</span> <span class="statement" id="st-d0_s15" data-properties="seed some measurement;2n chromosome quantity"><b>Seeds </b>0.4–0.5 mm. <b>2n</b> = 48.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Sep.
|habitat=Arid grasslands, semideserts, open woodlands.
|elevation=0–2500 m.
|distribution=Colo.;N.Mex.;Tex.
|discussion=<p>Orobanche multiflora is parasitic mainly on Gutierrezia and occasionally Heterotheca (Asteraceae). A population in southern Texas is parasitic on Varilla texana (Asteraceae).</p><!--
--><p>There is considerable confusion about what constitutes Orobanche multiflora. It has been interpreted as both a variety and subspecies of O. ludoviciana. The much larger flowers (22–36 mm versus 14–20 mm) set it apart from O. ludoviciana. P. A. Munz (1930) described four varieties of O. multiflora: vars. arenosa, multiflora (as typica), pringlei, and xanthocroa. Variety xanthocroa was based on a specimen of Conopholis. Variety arenosa is treated in synonymy under O. ludoviciana. Variety pringlei was based on a few specimens from northeastern Mexico that appear to represent an undescribed species.</p><!--
--><p>The distribution range is not well defined in the literature. The authors consider Orobanche multiflora to have a much more restricted range than previously indicated, occurring mostly in Colorado, New Mexico, and adjacent northwestern Texas, with disjunct populations in southern Texas that are apparently this species. Specimen data indicate that the species distribution is most likely east of the Continental Divide; plants from west of the continental divide with this binomial are probably misidentified.</p><!--
--><p>Plants from five counties in extreme southern Texas, near the Mexican border, appear to be a disjunct variant of Orobanche multiflora that flowers in spring. The flowers are about the same length, but the corolla tube is much narrower. Margins of the petals are often undulate and are an unusual shade of blue-purple. The pubescence at the base of the filaments is also reduced. Host and habitat differences also raise questions about the classification of these plants.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Orobanche multiflora
|authority=Nuttall
|rank=species
|parent rank=genus
|synonyms=Aphyllon multiflorum;Myzorrhiza multiflora;Orobanche ludoviciana subsp. multiflora;O. ludoviciana var. multiflora
|basionyms=
|family=Orobanchaceae
|phenology=Flowering Aug–Sep.
|habitat=Arid grasslands, semideserts, open woodlands.
|elevation=0–2500 m.
|distribution=Colo.;N.Mex.;Tex.
|reference=None
|publication title=Proc. Acad. Nat. Sci. Philadelphia
|publication year=1848
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V17/V17_819.xml
|genus=Orobanche
|species=Orobanche multiflora
|2n chromosome quantity=48
|abaxial lip orientation=spreading
|abaxial lip some measurement=5mm;9mm
|adaxial lip orientation=reflexed;erect
|adaxial lip some measurement=6mm;12mm
|anther position=included
|anther pubescence=woolly
|apex pubescence=glandular-pubescent
|apex shape=rounded;rounded;obtuse;acuminate;acute;acute
|base size=enlarged
|blade shape=triangular;lanceolate
|blade some measurement=3mm;10mm
|bract orientation=erect;reflexed
|bract shape=lanceolate
|bract some measurement=11mm;20mm
|bracteole quantity=2
|calyx architecture or shape=symmetric
|calyx coloration=pallid
|calyx coloration or density=purple
|calyx shape=divided
|calyx some measurement=15mm;21mm
|capsule shape=ovoid
|capsule some measurement=8mm;12mm
|corolla some measurement=22mm;36mm
|filament pubescence=pilose
|flower quantity=numerous
|fold coloration=yellow
|fold prominence=prominent
|fold pubescence=pubescent
|inflorescences raceme architecture=branched;thyrsoid
|inflorescences raceme coloration=whitish;pale lavender;purple;,;tan;white;pale lavender;purple;,;tan;white;pale-yellow
|inflorescences raceme pubescence=canescent;glandular-pubescent
|leaf fixation or orientation=appressed
|leaf quantity=numerous
|lip coloration=light yellow;white;purple;pink;tinged;light purplish;pinkish;purple;pink;tinged;light purplish;pinkish;externally white;pallid or cream
|lobe pubescence=glandular-pubescent
|lobe quantity=5
|lobe shape=oblong;lanceolate;lanceolate-attenuate
|margin architecture or pubescence or shape=ciliate
|margin architecture or shape=entire
|pedicel height or length or size=much shorter
|pedicel some measurement=0mm;5mm
|root architecture=branched;unbranched
|root prominence=inconspicuous
|root size=slender
|seed some measurement=0.4mm;0.5mm
|surface pubescence=glabrous
|tube coloration=light yellow;tinged;light purplish;pinkish;white;pallid or cream
|tube pubescence=pubescent
|tube shape=bent
|tube size=constricted
|vein coloration or density=purple;purple
|whole_organism architecture=few-branched;simple
|whole_organism growth form=plant
|whole_organism size=slender
|whole_organism some measurement=7cm;27cm
}}<!--

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