familyOnagraceae
subfamilyOnagraceae subfam. Onagroideae
tribeOnagraceae tribe Onagreae
genusOenothera
sectionOenothera sect. Oenothera
subsectionOenothera subsect. Nutantigemma
speciesOenothera pubescens

Oenothera pubescens

Willdenow ex Sprengel

Syst. Veg. 2: 229. 1825.

Warren L. Wagner
Synonyms: Anogra amplexicaulis Wooton & Standley Oenothera amplexicaulis (Wooton & Standley) Tidestrom O. laciniata subsp. pubescens (Willdenow ex Sprengel) Munz Var. o. var. o. laciniatapubescens (Willdenow ex Sprengel) Munz O. nyctaginiifolia Small O. stuebelii Hieronymus Raimannia colimae Rose ex Sprague & L. Riley R. confusa Rose ex Sprague & L. Riley
Treatment appears in FNA Volume 10.
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Herbs annual or biennial, densely to sparsely strigil­lose, sometimes also villous and glandular puberulent distally; from a taproot. Stems unbranched or with branched central stem and ascending to decumbent lateral branches arising from rosette, 5–50 (–80) cm. Leaves in a basal rosette and cauline, basal 5–14 × 0.5–2.5 cm, cauline 2–8 × 0.5–2.5 cm; blade narrowly oblanceolate to narrowly elliptic or narrowly oblong, margins usually dentate to deeply lobed; bracts spreading, flat. Flowers usually 1 opening per day near sunset; buds with free tips erect, 0.1–1 mm; floral-tube erect, becoming recurved and nodding, then erect again just before anthesis, 15–50 mm; sepals 5–25 mm; petals yellow, fading reddish orange, broadly obovate to obcordate, 5–25 (–35) mm; filaments 6–18 mm, anthers (2–) 3–9 mm, pollen ca. 50% fertile; style 20–60 mm, stigma surrounded by or slightly exserted beyond anthers at anthesis. Capsules cylin­drical, sometimes slightly enlarged distally, 20–45 ×2–4 mm. Seeds brown, sometimes dark-flecked, 0.9–1.5 × 0.6–1 mm. 2n = 14.


Phenology: Flowering (Feb–)Apr–Sep(–Oct).
Habitat: Open sites in mon­tane habitats.
Elevation: (1300–)1500–2500(–3100) m.

Distribution

Ariz., N.Mex., Tex., Mexico, West Indies, Central America (Guatemala), South America (Colombia), South America (Ecuador), South America (Peru)

Discussion

Oenothera pubescens is a PTH species and forms a ring of 14 chromosomes in meiosis, and is self-compatible and autogamous (W. Dietrich and W. L. Wagner 1988).

Oenothera pubescens has been collected once in California in 1884 (Newberry Springs, San Bernardino County), where it was temporarily introduced or a natural occurrence that was extirpated. Collections from west Texas (Brewster, Jeff Davis, and Presidio counties) have been made since 1990 and a few others collected earlier were misidentified as O. laciniata.

Selected References

None.

Lower Taxa

None.
... more about "Oenothera pubescens"
RDF feed
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
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Anther fixation
versatile +
Anther some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Author
Warren L. Wagner +
Authority
Willdenow ex Sprengel +
Basal leaf arrangement
alternate +
Basal leaf position
cauline +
Basal leaf presence
absent +
Basal stem length
5 cm50 mm <br />0.05 m <br /> (14 cm140 mm <br />0.14 m <br />) +
Basal stem width
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Base coloration
pale green +  and yellow usually fading orange purple pale-yellow reddish or whitish +
Base shape
pedicel-like +
Berry architecture or shape
nutlike +
Berry dehiscence
indehiscent +  and loculicidal +
Blade margin architecture or shape
serrate +
Blade margin shape
subentire +, dentate +, lobed to sinuate-dentate +  and lobed +
Blade shape
narrowly oblanceolate +  and narrowly elliptic or narrowly oblong +
Bract orientation
spreading +
Bract prominence or shape
flat +
Bud orientation
nodding +
Bud shape
quadrangular +  and terete +
Bud some measurement
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Capsule architecture
sessile +
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 course or shape
sigmoid +
Capsule dehiscence
indehiscent +  and dehiscent +
Capsule diameter
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Capsule length
2 cm20 mm <br />0.02 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Capsule shape
subterete +  and cylindrical +
Capsule size
enlarged +
Capsule texture
woody +
Capsule width
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Carpel quantity
Many (?) +
Cauline stem length
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Cauline stem width
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Cel reproduction
vegetative +
Central stem architecture
branched +
Distribution
Ariz. +, N.Mex. +, Tex. +, Mexico +, West Indies +, Central America (Guatemala) +, South America (Colombia) +, South America (Ecuador) +  and South America (Peru) +
Elevation
(1300–)1500–2500(–3100) 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 +
Exserted position
exserted +
Filament architecture
dithecal +
Filament fixation
basifixed +  and versatile +
Filament fusion
distinct +
Filament some measurement
0.6 cm6 mm <br />0.006 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Floral-tube atypical some measurement
16.5 cm165 mm <br />0.165 m <br /> (19 cm190 mm <br />0.19 m <br />) +
Floral-tube duration
deciduous +
Floral-tube orientation
erect +, nodding +  and recurved +
Floral-tube presence
absent +
Floral-tube pubescence
hispid +, lanate +  and glabrous +
Floral-tube quantity
, +
Floral-tube some measurement
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 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 +
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 sites in montane habitats. +
Hair height or length or size
short +
Hair position relational
interlocking +
Herb architecture
caulescent +
Herb architecture or function or pubescence
glandular +
Herb duration
biennial +  and annual +
Herb growth form
suffrutescent +
Herb pubescence
puberulent +  and villous +
Illustration
Present +
Indusium architecture
peltate +
Indusium prominence
conspicuous +
Inflorescence position
axillary +
Lateral branch atypical some measurement
50 cm500 mm <br />0.5 m <br /> (80 cm800 mm <br />0.8 m <br />) +
Lateral branch orientation
arising +  and ascending to decumbent +
Lateral branch some measurement
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Lateral root orientation
spreading +
Leaf-axil orientation
nodding +  and erect +
Leaf architecture
simple +
Leaf arrangement
alternate +
Leaf atypical some measurement
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Leaf condition
later +
Leaf duration
deciduous +
Leaf position
cauline +
Leaf presence
absent +
Leaf some measurement
3 cm30 mm <br />0.03 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Lobe arrangement or course or shape
linear +
Lobe quantity
4 (?) +
Locule arrangement or growth form
clustered +
Locule quantity
many +
Margin shape
usually dentate +  and deeply 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 +
Perianth position
epigynous +
Petal arrangement
imbricate +
Petal arrangement or shape
convolute +
Petal atypical some measurement
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Petal coloration
orange +, fading reddish +  and yellow +
Petal presence
absent +
Petal quantity
4 +
Petal shape
broadly obovate +  and obcordate +
Petal some measurement
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Phenology
Flowering (Feb–)Apr–Sep(–Oct). +
Pollen-grain dehiscence or orientation
longitudinal +
Pollen arrangement
singly +
Pollen reproduction
fertile +
Polyad arrangement
singly +
Proximal part reproduction
sterile +
Publication title
Syst. Veg. +
Publication year
1825 +
Raphide quantity
abundant +
Reference
None +
Rosette position
basal +  and cauline +
Row atypical quantity
2 (4) +
Row quantity
2 +
Secretion condition
wet +
Secretion condition or texture
dry +
Secretion relief
papillate +
Secretion shape
clavate +  and globose +
Seed atypical quantity
1 (160) +
Seed coloration
dark-flecked +  and brown +
Seed length
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Seed quantity
numerous +
Seed relief
sculptured +  and smooth +
Seed shape
ellipsoid +  and subglobose +
Seed size
reduced +
Seed width
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Sepal architecture or dehiscence
splitting +
Sepal arrangement
separate +  and separating +
Sepal arrangement or dehiscence
valvate +
Sepal coloration
purple +, pink +, red +  and green +
Sepal duration
deciduous +
Sepal orientation
reflexed +
Sepal quantity
4 +
Sepal some measurement
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 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 development
developing +
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 +
Spike architecture or arrangement
lax +
Spike density
dense +
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
with branched central stem +  and unbranched +
Stem growth form or orientation
decumbent +
Stem orientation
erect +  and ascending +
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
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 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 coloration or relief
reticulate +
Surface architecture or shape
entire +
Surface condition
wet +
Surface duration
persisting +
Surface life cycle
anthesis +
Surface prominence
obscured +
Surface prominence or shape
flat +
Surface quantity
7 (?) +
Surface relief
pitted +
Surface shape
beaded +
Suture quantity
1 +
Synonyms
Anogra amplexicaulis +, Oenothera amplexicaulis +, O. laciniata subsp. pubescens +, Var. o. var. o. +, O. nyctaginiifolia +, O. stuebelii +, Raimannia colimae +  and R. confusa +
Taxon family
Onagraceae +
Taxon name
Oenothera pubescens +
Taxon parent
Oenothera subsect. Nutantigemma +
Taxon rank
species +
Tetrad arrangement
singly +
Tetrad dehiscence
3(-5)-aperturate +
Tip fusion
free +
Tip orientation
erect +
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 +