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2n chromosome quantity
14 +
4-locular septum architecture
incomplete +
4-locular septum architecture or structure in adjective form
1-locular +
Androecium position
epigynous +
Anther atypical some measurement
1.3 cm13 mm <br />0.013 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Anther fixation
versatile +
Anther some measurement
0.3 cm3 mm <br />0.003 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Apex shape
acute +
Author
Warren L. Wagner +
Authority
(A. Nelson) Garrett +
Basal leaf arrangement
alternate +
Basal leaf position
cauline +
Basal leaf presence
absent +
Basal rosette atypical length
30 cm300 mm <br />0.3 m <br /> (36 cm360 mm <br />0.36 m <br />) +
Basal rosette atypical width
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Basal rosette length
6 cm60 mm <br />0.06 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Basal rosette width
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Base coloration
pale green +  and yellow usually fading orange purple pale-yellow reddish or whitish +
Base shape
pedicel-like +
Basionyms
Lavauxiaflava a. +
Beak height or length or size
short +
Berry architecture or shape
nutlike +
Berry dehiscence
indehiscent +  and loculicidal +
Blade margin shape
lobed +  and dentate or subentire +
Blade shape
oblanceolate +  and linear +
Bud orientation
erect +
Bud shape
quadrangular +
Capsule architecture
winged +
Capsule architecture or shape
nutlike +
Capsule architecture or structure in adjective form
4-locular +
Capsule condition or texture
dry +
Capsule course
curved +  and straight +
Capsule dehiscence
indehiscent +  and dehiscent +
Capsule position or shape
distal +
Capsule quantity
2/3 +
Capsule shape
lanceoloid +, ovoid +, ellipsoid +  and rhombic-obovoid +
Capsule texture
leathery +
Carpel quantity
Many (?) +
Cel reproduction
vegetative +
Distribution
Alta. +, Man. +, Sask. +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nebr. +, Nev. +, N.Mex. +, N.Dak. +, Oreg. +, S.Dak. +, Utah +, Wash. +, Wyo. +, Mexico (Chihuahua) +, Mexico (Durango) +, Mexico (Guanajuato) +, Mexico (Hidalgo) +, Mexico (Jalisco) +  and Mexico (Sonora) +
Elevation
300–3200 m. +
Embryo-sac coating
oily +
Embryo-sac course
straight +
Embryo-sac presence
absent +
Embryo coating
oily +
Embryo course
straight +
Embryo presence
absent +
Endosperm coating
oily +
Endosperm course
straight +
Endosperm presence
absent +
Epidermis coloration
whitish +  and green +
Epidermis relief
exfoliating +
Filament architecture
dithecal +
Filament atypical some measurement
2.3 cm23 mm <br />0.023 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
Filament fixation
basifixed +  and versatile +
Filament fusion
distinct +
Filament some measurement
0.8 cm8 mm <br />0.008 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
Floral-tube atypical some measurement
20 cm200 mm <br />0.2 m <br /> (26.5 cm265 mm <br />0.265 m <br />) +
Floral-tube duration
deciduous +
Floral-tube presence
absent +
Floral-tube pubescence
hispid +, lanate +  and glabrous +
Floral-tube quantity
, +
Floral-tube some measurement
4 cm40 mm <br />0.04 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Flower architecture
zygomorphic +  and actinomorphic +
Flower architecture or arrangement or growth form
solitary +
Flower odor
unscented +
Flower part duration
deciduous +
Flower part life cycle
anthesis +
Flower quantity
1 +  and 4 +
Flower reproduction
bisexual +
Flowers petal coloration
purple +  and lavender +
Fruit architecture
winged +
Fruit course
curved +  and straight +
Fruit dehiscence
indehiscent +  and dehiscent +
Fruit shape
4-angled +, terete +, tapering +, cylindrical +, ellipsoid +, clavate +, ovoid ellipsoid +  and cylindrical rhombic-obovoid or globose +
Habitat
Local and colonial, sometimes abundant in wet (at least seasonally moist) clay to gravelly sand of swales, desiccating flats and ponds, montane meadows, margins of permanent or seasonal watercourses, open sites. +
Hair height or length or size
short +
Hair position relational
interlocking +
Herb architecture
short-caulescent +  and acaulescent +
Herb architecture or function or pubescence
glandular +
Herb duration
short-lived +  and perennial +
Herb growth form
suffrutescent +
Herb pubescence
hirsute +, puberulent +, glabrate +  and moderately strigillose +
Illustration
Present +
Indusium architecture
peltate +
Indusium prominence
conspicuous +
Inflorescence position
axillary +
Lateral root orientation
spreading +
Leaf-axil orientation
nodding +  and erect +
Leaf architecture
simple +
Leaf arrangement
alternate +
Leaf atypical some measurement
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Leaf condition
later +
Leaf duration
deciduous +
Leaf fragility
flexible +
Leaf position
cauline +
Leaf presence
absent +
Leaf some measurement
8 cm80 mm <br />0.08 m <br /> (36 cm360 mm <br />0.36 m <br />) +
Leaf texture
fleshy +
Lobe arrangement or course or shape
linear +
Lobe quantity
4 (?) +
Locule arrangement or growth form
clustered +
Locule quantity
3 +
Margin shape
subentire +  and lobed +
Mouth condition
closing +
Nectary presence
absent +
Number of lower taxa
0 +
Ovary architecture
pedicellate +  and sessile +
Ovary architecture or structure in adjective form
1-locular +
Ovary position
inferior +
Ovule architecture
bitegmic +
Ovule arrangement or growth form
clustered +
Ovule orientation
anatropous +
Ovule quantity
1 +  and 8 +
Pair arrangement
separating +
Pair life cycle
anthesis +
Perianth position
epigynous +
Petal arrangement
imbricate +
Petal arrangement or shape
convolute +
Petal atypical some measurement
4.5 cm45 mm <br />0.045 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Petal coloration
orange +, fading pale +, paler +  and bright-yellow +
Petal coloration or density
purple +
Petal condition
drying +
Petal presence
absent +
Petal quantity
4 +
Petal shape
obcordate +  and obovate +
Petal some measurement
1 cm10 mm <br />0.01 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Petiole atypical some measurement
7 cm70 mm <br />0.07 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Petiole some measurement
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Phenology
Flowering Mar–Aug(–Oct). +
Pollen-grain dehiscence or orientation
longitudinal +
Pollen arrangement
singly +
Polyad arrangement
singly +
Proximal part reproduction
sterile +
Publication title
Spring Fl. Wasatch ed. +
Publication year
1927 +
Raphide quantity
abundant +
Reference
None +
Root position
lateral +
Rosette position
basal +  and cauline +
Row atypical quantity
2 (4) +
Row fusion
distinct +
Row quantity
2 +
Secretion condition
wet +
Secretion condition or texture
dry +
Secretion relief
papillate +
Secretion shape
clavate +  and globose +
Seed architecture
winged +
Seed arrangement
adjacent +
Seed atypical quantity
1 (160) +
Seed atypical some measurement
0.22 cm2.2 mm <br />0.0022 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
Seed quantity
numerous +
Seed relief
sculptured +  and smooth +
Seed shape
cuneiform +
Seed size
reduced +
Seed some measurement
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Sepal architecture or dehiscence
splitting +
Sepal arrangement or dehiscence
valvate +
Sepal atypical some measurement
4 cm40 mm <br />0.04 m <br /> (4.2 cm42 mm <br />0.042 m <br />) +
Sepal coloration
purple +, pink +, red +  and green +
Sepal duration
deciduous +
Sepal fusion
coherent +
Sepal orientation
reflexed +
Sepal quantity
4 +
Sepal some measurement
1.1 cm11 mm <br />0.011 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Septum architecture
incomplete +
Septum arrangement
parietal +, axile +  and placentation +
Septum fragility
fragile +
Septum presence
absent +
Septum width
thin +
Series length or size
longer +
Series quantity
2 +
Series size
unequal +
Series variability
equal +
Set length or size
longer +
Set quantity
2 +
Set variability
equal +
Shoot derivation
adventitious +
Shoot orientation
arising +
Shrub architecture
unarmed +
Shrub growth form
not clonal +
Shrub habitat
aquatic +, amphibious +  and terrestrial +
Slit dehiscence or orientation
longitudinal +
Spike architecture
leafy +
Stamen quantity
8 +
Stamen size
in 2 unequal series +  and subequal +
Stamen size or quantity
2 times as many or as many as sepals +
Stem architecture
leafy +
Stem growth form or orientation
decumbent +
Stem orientation
ascending +
Stem quantity
1 +  and several +
Stem some measurement
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Stigma architecture
peltate +
Stigma development
developing +
Stigma quantity
1 +
Stigma shape
divided +
Stipule architecture
petiolate +  and sessile +
Stipule duration
caducous +
Stipule position
intrapetiolar +
Stipule presence
absent +
Stipule size
small +
Style atypical some measurement
25 cm250 mm <br />0.25 m <br /> (29 cm290 mm <br />0.29 m <br />) +
Style pubescence
pubescent +  and glabrous +
Style quantity
1 +
Style some measurement
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Subshrub architecture
unarmed +
Subshrub growth form
not clonal +
Subshrub habitat
aquatic +, amphibious +  and terrestrial +
Surface architecture
winged +
Surface architecture or coloration or relief
reticulate +
Surface architecture or shape
entire +
Surface condition
wet +
Surface duration
persisting +
Surface life cycle
anthesis +
Surface prominence
obscured +
Surface quantity
7 (?) +
Surface relief
rugose +, papillose +  and non-papillate +
Surface shape
lanceoloid +, ovoid +  and ellipsoid +
Synonyms
L. palustris +, L. taraxacoides +, Oenothera flava subsp. taraxacoides +, O. murdockii +, O. taraxacoides +  and O. triloba var. ecristata +
Taxon family
Onagraceae +
Taxon name
Oenothera flava +
Taxon parent
Oenothera subsect. Lavauxia +
Taxon rank
species +
Tetrad arrangement
singly +
Tetrad dehiscence
3(-5)-aperturate +
Tip atypical some measurement
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Tip fusion
free +
Tip size
subequal +  and unequal +
Tip some measurement
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Valve surface architecture
sessile +
Valve surface architecture or coloration or relief
reticulate +
Viscin thread dehiscence or orientation
longitudinal +
Viscin thread fusion
united +
Volume
Volume 10 +
Wall texture
woody +  and hard +
Wing architecture
sessile +
Wing atypical length
3.5 cm35 mm <br />0.035 m <br /> (4.3 cm43 mm <br />0.043 m <br />) +
Wing condition or texture
dry +
Wing dehiscence
dehiscent +
Wing relief
papillate +
Wing shape
oblong +
Wing size
constricted +
Wing width
4mm +  and 8mm +