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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 fixation
versatile +
Anther some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Apex dehiscence
indehiscent +
Apex shape
rounded +, , +, acute +  and attenuate +
Author
Warren L. Wagner +
Authority
(Buckley) W. L. Wagner & Hoch +
Basal leaf arrangement
alternate +
Basal leaf position
cauline +
Basal leaf presence
absent +
Basal scale some measurement
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Base coloration
pale green +  and yellow usually fading orange purple pale-yellow reddish or whitish +
Base shape
pedicel-like +
Basionyms
Gaura triangulata +
Berry architecture or shape
nutlike +
Berry dehiscence
indehiscent +  and loculicidal +
Blade margin shape
sinuate-dentate +  and denticulate serrate lobed or entire +
Blade shape
very narrowly elliptic +  and oblanceolate or oblongelliptic +
Bud orientation
erect +
Bud shape
terete +
Capsule architecture
sessile +, furrowed +  and 3-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 length
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Capsule orientation
erect +
Capsule shape
narrowed +  and obovoid +
Capsule size
constricted +
Capsule texture
woody +
Capsule width
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Carpel quantity
Many (?) +
Cel reproduction
vegetative +
Distribution
Okla. +  and Tex. +
Elevation
200–600 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 fixation
basifixed +  and versatile +
Filament fusion
distinct +
Filament some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Floral-tube atypical some measurement
1.4 cm14 mm <br />0.014 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Floral-tube duration
deciduous +
Floral-tube presence
absent +
Floral-tube pubescence
lanate +
Floral-tube quantity
, +
Floral-tube some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
Flower architecture
open +, zygomorphic +  and 3-merous +
Flower architecture or arrangement or growth form
solitary +
Flower orientation
nodding +  and erect +
Flower part duration
deciduous +
Flower part life cycle
anthesis +
Flower reproduction
bisexual +
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
Open, sandy sites. +
Hair height or length or size
short +
Hair position relational
interlocking +
Herb architecture
caulescent +
Herb duration
annual +
Herb growth form
suffrutescent +
Herb pubescence
strigillose +, glabrate +  and villous +
Herb texture
producing rhizomes +  and woody +
Indusium architecture
peltate +
Indusium prominence
conspicuous +
Inflorescence orientation
erect +
Inflorescence position
axillary +
Lateral root orientation
spreading +
Leaf-axil orientation
nodding +  and erect +
Leaf architecture
simple +
Leaf arrangement
alternate +
Leaf atypical some measurement
8 cm80 mm <br />0.08 m <br /> (13 cm130 mm <br />0.13 m <br />) +
Leaf atypical width
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Leaf condition
later +
Leaf duration
deciduous +
Leaf length
1.5 cm15 mm <br />0.015 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Leaf position
cauline +
Leaf presence
absent +
Leaf some measurement
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Leaf width
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Lobe arrangement or course or shape
linear +
Lobe quantity
4 (?) +
Locule arrangement or growth form
clustered +
Locule quantity
many +
Margin architecture or shape
sinuate-dentate +  and entire +
Mouth condition
closing +
Mouth presence
absent +
Mouth size
reduced +
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 +
Perianth position
epigynous +
Petal arrangement
imbricate +
Petal arrangement or shape
convolute +
Petal coloration
fading pink +  and white +
Petal presence
absent +
Petal quantity
4 +
Petal shape
elliptic-obovate +
Petal size
unequal +
Petal some measurement
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Phenology
Flowering Apr–Jul. +
Pollen-grain dehiscence or orientation
longitudinal +
Pollen arrangement
singly +
Pollen reproduction
fertile +
Polyad arrangement
singly +
Proximal part reproduction
sterile +
Publication title
Syst. Bot. Monogr. +
Publication year
2007 +
Raphide quantity
abundant +
Reference
None +
Rosette position
basal +  and cauline +
Row atypical quantity
2 (4) +
Row quantity
2 +  and 1 +
Secretion condition
wet +
Secretion condition or texture
dry +
Secretion relief
papillate +
Secretion shape
clavate +  and globose +
Seed atypical quantity
1 (160) +
Seed coloration
light-brown +
Seed length
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Seed quantity
2 +  and 5 +
Seed relief
sculptured +  and smooth +
Seed size
reduced +
Seed width
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Sepal architecture or dehiscence
splitting +
Sepal arrangement
separating +
Sepal arrangement or dehiscence
valvate +
Sepal coloration
purple +, pink +, red +  and green +
Sepal duration
deciduous +
Sepal fusion
coherent +
Sepal orientation
reflexed +
Sepal quantity
4 +
Sepal some measurement
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Septum architecture
disarticulating +  and sessile +
Septum arrangement
parietal +, axile +  and placentation +
Septum fragility
fragile +
Septum presence
absent +
Septum prominence
not evident +
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 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
unbranched +  and well-branched +
Stem growth form or orientation
decumbent +
Stem orientation
ascending +
Stem quantity
several +  and single +
Stem some measurement
15 cm150 mm <br />0.15 m <br /> (60 cm600 mm <br />0.6 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 pubescence
pubescent +  and glabrous +
Style quantity
1 +
Style some measurement
0.9 cm9 mm <br />0.009 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Subshrub architecture
unarmed +
Subshrub growth form
not clonal +
Subshrub habitat
aquatic +, amphibious +  and terrestrial +
Surface architecture
smooth +, reticulate +  and furrowed +
Surface architecture or pubescence or relief
smooth +
Surface architecture or shape
entire +
Surface atypical quantity
4 (8) +
Surface condition
wet +
Surface duration
persisting +
Surface life cycle
anthesis +
Surface prominence
obscured +
Surface quantity
1 (4) +
Surface relief
rugose +, papillose +  and non-papillate +
Surface shape
oblanceoloid +  and ovoid +
Synonyms
G. hexandra var. triangulata +  and G. tripetala var. triangulata +
Taxon family
Onagraceae +
Taxon name
Oenothera triangulata +
Taxon parent
Oenothera subsect. Gaura +
Taxon rank
species +
Tetrad arrangement
singly +
Tetrad dehiscence
3(-5)-aperturate +
Tip fusion
free +
Viscin thread dehiscence or orientation
longitudinal +
Viscin thread fusion
united +
Volume
Volume 10 +
Wall texture
woody +  and hard +
Wing architecture
smooth +  and erose +
Wing condition or texture
dry +
Wing relief
papillate +
Wing width
thick +
Within position or shape
distal +
Within quantity
1/2 +