View source for Oenothera oakesiana

{{Treatment/ID
|accepted_name=Oenothera oakesiana
|accepted_authority=(A. Gray) J. W. Robbins ex S. Watson & J. M. Coulter in A. Gray et al.
|publications={{Treatment/Publication
|title=Manual ed.
|place=6, 190. 1890
|year=1890
}}
|basionyms={{Treatment/ID/Basionym
|name=Oenothera biennis var. oakesiana
|authority=A. Gray
|rank=variety
|publication_title=Manual ed.
|publication_place=5, 178.  1867
}}
|synonyms={{Treatment/ID/Synonym
|name=O. ammophila
|authority=Focke
|rank=species
}} {{Treatment/ID/Synonym
|name=O. ammophiloides
|authority=R. R. Gates & Catcheside
|rank=species
}} {{Treatment/ID/Synonym
|name=O. ammophiloides var. angustifolia
|authority=R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. ammophiloides var. laurensis
|authority=R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. atrovirens var. ostreae
|authority=(A. H. Sturtevant) R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. canovirens var. cymatilis
|authority=(Bartlett) R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. cruciata var. stenopetala
|authority=(E. P. Bicknell) Fernald
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. cymatilis
|authority=Bartlett
|rank=species
}} {{Treatment/ID/Synonym
|name=O. deflexa var. bracteata
|authority=R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. disjuncta
|authority=Boedijn
|rank=species
}} {{Treatment/ID/Synonym
|name=O. eriensis
|authority=R. R. Gates
|rank=species
}} {{Treatment/ID/Synonym
|name=O. eriensis var. niagarensis
|authority=(R. R. Gates) R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. eriensis var. repandodentata
|authority=(R. R. Gates) R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. germanica
|authority=Boedijn
|rank=species
}} {{Treatment/ID/Synonym
|name=O. insignis
|authority=Bartlett
|rank=species
}} {{Treatment/ID/Synonym
|name=O. laevigata var. rubripunctata
|authority=R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. leucophylla
|authority=R. R. Gates
|rank=species
}} {{Treatment/ID/Synonym
|name=O. litorea
|authority=Bartlett
|rank=species
}} {{Treatment/ID/Synonym
|name=O. magdalena
|authority=R. R. Gates
|rank=species
}} {{Treatment/ID/Synonym
|name=O. millersii
|authority=de Vries
|rank=species
}} {{Treatment/ID/Synonym
|name=O. muricata var. parviflora
|authority=R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. niagarensis
|authority=R. R. Gates
|rank=species
}} {{Treatment/ID/Synonym
|name=O. nobska
|authority=A. H. Sturtevant
|rank=species
}} {{Treatment/ID/Synonym
|name=O. oakesiana var. nobska
|authority=(A. H. Sturtevant) R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. oakesiana var. tidestromii
|authority=(Bartlett) R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. ostreae
|authority=A. H. Sturtevant
|rank=species
}} {{Treatment/ID/Synonym
|name=O. parviflora var. oakesiana
|authority=(A. Gray) Fernald
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. perangusta
|authority=R. R. Gates
|rank=species
}} {{Treatment/ID/Synonym
|name=O. perangusta var. rubricalyx
|authority=R. R. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=O. repandodentata
|authority=R. R. Gates
|rank=species
}} {{Treatment/ID/Synonym
|name=O. rubescens
|authority=Bartlett
|rank=species
}} {{Treatment/ID/Synonym
|name=O. stenopetala
|authority=E. P. Bicknell
|rank=species
}} {{Treatment/ID/Synonym
|name=O. tidestromii
|authority=Bartlett
|rank=species
}} {{Treatment/ID/Synonym
|name=Onagra oakesiana
|authority=(A. Gray) Britton
|rank=species
}}
|hierarchy=Onagraceae;Onagraceae subfam. Onagroideae;Onagraceae tribe Onagreae;Oenothera;Oenothera sect. Oenothera;Oenothera subsect. Oenothera;Oenothera oakesiana
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Onagraceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Onagraceae subfam. Onagroideae]]</div><div class="higher-taxon"><small>tribe</small>[[Onagraceae tribe Onagreae]]</div><div class="higher-taxon"><small>genus</small>[[Oenothera]]</div><div class="higher-taxon"><small>section</small>[[Oenothera sect. Oenothera]]</div><div class="higher-taxon"><small>subsection</small>[[Oenothera subsect. Oenothera]]</div><div class="higher-taxon"><small>species</small>[[Oenothera oakesiana]]</div></div>
|volume=Volume 10
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="herb duration;herb pubescence;herb pubescence;herb pubescence;herb pubescence;hair length or size;hair fixation or orientation;hair orientation;hair relief;hair architecture or function or pubescence"><b>Herbs </b>biennial, densely silky-strigillose, at least proximally, also sparsely villous with long, appressed hairs, sometimes also villous with spreading, pustulate hairs and/or glandular puberulent distally.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem orientation;stem orientation;stem coloration;stem coloration;stem some measurement;proximal base architecture;proximal base growth form;proximal base architecture;proximal base architecture;proximal base growth form;proximal base architecture;base architecture;base architecture;side branch orientation"><b>Stems </b>erect to decumbent, green or flushed with red on proximal parts or throughout, unbranched or bushy and branched from base, with side branches arising obliquely or arcuately from rosette, 10–60 cm.</span> <span class="statement" id="st-d0_s2" data-properties="leaf position;basal stem length;basal stem width;cauline stem length;cauline stem width"><b>Leaves </b>in a basal rosette and cauline, basal 8–30 × 0.5–3 cm, cauline 3.5–20 ×0.5–2.7 cm;</span> <span class="statement" id="st-d0_s3" data-properties="blade coloration;blade coloration;blade coloration;blade coloration;blade shape;blade shape;blade shape;blade shape;margin shape;margin shape;margin shape;tooth shape;tooth architecture or shape">blade grayish green to dull green, very narrowly oblanceolate to narrowly oblanceolate or narrowly elliptic, margins flat, subentire or remotely dentate, teeth sometimes blunt, sometimes sinuate-dentate proximally;</span> <span class="statement" id="st-d0_s4" data-properties="bract duration">bracts persistent.</span> <span class="statement" id="st-d0_s5" data-properties="inflorescence orientation;inflorescence orientation;inflorescence architecture;tip orientation"><b>Inflorescences </b>usually recurved with ascending tip distally, rarely suberect, unbranched.</span> <span class="statement" id="st-d0_s6" data-properties=""><b>Flowers </b>opening near sunset;</span> <span class="statement" id="st-d0_s7" data-properties="bud orientation;bud diameter;bud orientation;bud orientation;bud orientation;bud some measurement;tip fusion;tip position">buds erect, 3–5 mm diam., with free tips subterminal, spreading to erect, 2.5–4 mm;</span> <span class="statement" id="st-d0_s8" data-properties="floral-tube some measurement">floral-tube 15–40 mm;</span> <span class="statement" id="st-d0_s9" data-properties="sepal coloration;sepal coloration;sepal coloration;sepal coloration;sepal some measurement">sepals green to yellow, flushed with red and dark red flecked or red-striped, 9–17 mm;</span> <span class="statement" id="st-d0_s10" data-properties="petal coloration;petal coloration;petal coloration;petal coloration;petal coloration;petal coloration;petal coloration;petal coloration;petal coloration;petal coloration;petal coloration;petal coloration;petal coloration;petal shape;petal some measurement">petals yellow to pale-yellow, fading yellowish white to pale yellowish orange, very broadly obcordate, 7–20 mm;</span> <span class="statement" id="st-d0_s11" data-properties="filament some measurement;anther some measurement;pollen reproduction">filaments 6–15 mm, anthers 3–7 mm, pollen ca. 50% fertile;</span> <span class="statement" id="st-d0_s12" data-properties="style some measurement">style 20–45 mm, stigma surrounded by anthers at anthesis.</span> <span class="statement" id="st-d0_s13" data-properties="capsule orientation;capsule orientation;capsule coloration;capsule shape;capsule shape;capsule shape;capsule length;capsule width;tip fusion;tip some measurement"><b>Capsules </b>erect or slightly spreading, usually rusty brown when dry, narrowly lanceoloid to lanceoloid, 15–40 × 4–8 mm, free tips of valves 0.5 mm.</span> <span class="statement" id="st-d0_s14" data-properties="seed length;seed width;2n chromosome quantity"><b>Seeds </b>1.1–1.2 ×0.8–1 mm. <b>2n</b> = 14.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Aug.
|habitat=Sandy coastal meadows and dunes, gravelly or rocky sites along rivers, disturbed sites, roadsides.
|elevation=0–50(–500) m.
|distribution=Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Conn.;Del.;D.C.;Ill.;Ind.;Maine;Md.;Mass.;Mich.;Minn.;N.H.;N.J.;N.Y.;Ohio;Pa.;R.I.;Vt.;Va.;Wis.;in Europe;Asia
|discussion=<p>Oenothera oakesiana is a PTH species and forms a ring of 14 chromosomes or a ring of 12 and 1 bivalent in meiosis, and is self-compatible and autogamous (W. Dietrich et al. 1997). It has plastome IV and a AC genome composition.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Oenothera oakesiana
|authority=(A. Gray) J. W. Robbins ex S. Watson & J. M. Coulter in A. Gray et al.
|rank=species
|parent rank=subsection
|synonyms=O. ammophila;O. ammophiloides;O. ammophiloides var. angustifolia;O. ammophiloides var. laurensis;O. atrovirens var. ostreae;O. canovirens var. cymatilis;O. cruciata var. stenopetala;O. cymatilis;O. deflexa var. bracteata;O. disjuncta;O. eriensis;O. eriensis var. niagarensis;O. eriensis var. repandodentata;O. germanica;O. insignis;O. laevigata var. rubripunctata;O. leucophylla;O. litorea;O. magdalena;O. millersii;O. muricata var. parviflora;O. niagarensis;O. nobska;O. oakesiana var. nobska;O. oakesiana var. tidestromii;O. ostreae;O. parviflora var. oakesiana;O. perangusta;O. perangusta var. rubricalyx;O. repandodentata;O. rubescens;O. stenopetala;O. tidestromii;Onagra oakesiana
|basionyms=Oenothera biennis var. oakesiana
|family=Onagraceae
|phenology=Flowering Jun–Aug.
|habitat=Sandy coastal meadows and dunes, gravelly or rocky sites along rivers, disturbed sites, roadsides.
|elevation=0–50(–500) m.
|distribution=Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Conn.;Del.;D.C.;Ill.;Ind.;Maine;Md.;Mass.;Mich.;Minn.;N.H.;N.J.;N.Y.;Ohio;Pa.;R.I.;Vt.;Va.;Wis.;in Europe;Asia
|reference=None
|publication title=Manual ed.
|publication year=1890
|special status=
|source xml=
|subfamily=Onagraceae subfam. Onagroideae
|tribe=Onagraceae tribe Onagreae
|genus=Oenothera
|section=Oenothera sect. Oenothera
|subsection=Oenothera subsect. Oenothera
|species=Oenothera oakesiana
|2n chromosome quantity=14
|anther some measurement=3mm;7mm
|basal stem length=8cm;30cm
|basal stem width=0.5cm;3cm
|base architecture=branched;branched
|blade coloration=grayish green;dull green
|blade shape=very narrowly oblanceolate;narrowly oblanceolate or narrowly elliptic
|bract duration=persistent
|bud diameter=3mm;5mm
|bud orientation=spreading;erect
|bud some measurement=2.5mm;4mm
|capsule coloration=rusty brown
|capsule length=15mm;40mm
|capsule orientation=spreading;erect
|capsule shape=narrowly lanceoloid;lanceoloid
|capsule width=4mm;8mm
|cauline stem length=3.5cm;20cm
|cauline stem width=0.5cm;2.7cm
|filament some measurement=6mm;15mm
|floral-tube some measurement=15mm;40mm
|hair architecture or function or pubescence=glandular
|hair fixation or orientation=appressed
|hair length or size=long
|hair orientation=spreading
|hair relief=pustulate
|herb duration=biennial
|herb pubescence=puberulent;villous;villous;silky-strigillose
|inflorescence architecture=unbranched
|inflorescence orientation=suberect;recurved
|leaf position=cauline
|margin shape=dentate;subentire;flat
|petal coloration=orange;yellow;pale-yellow fading yellowish white
|petal shape=obcordate
|petal some measurement=7mm;20mm
|pollen reproduction=fertile
|proximal base architecture=branched;unbranched;branched;unbranched
|proximal base growth form=bushy;bushy
|seed length=1.1mm;1.2mm
|seed width=0.8mm;1mm
|sepal coloration=flushed with red and dark red flecked or flushed with red-striped;green;yellow
|sepal some measurement=9mm;17mm
|side branch orientation=arising
|stem coloration=flushed;green
|stem orientation=erect;decumbent
|stem some measurement=10cm;60cm
|style some measurement=20mm;45mm
|tip fusion=free;free
|tip orientation=ascending
|tip position=subterminal
|tip some measurement=0.5
|tooth architecture or shape=sinuate-dentate
|tooth shape=blunt
}}<!--

-->[[Category:Treatment]][[Category:Oenothera subsect. Oenothera]]