familyOnagraceae
subfamilyOnagraceae subfam. Onagroideae
tribeOnagraceae tribe Onagreae
genusOenothera
sectionOenothera sect. Anogra
speciesOenothera deltoides
subspeciesOenothera deltoides subsp. ambigua

Oenothera deltoides subsp. ambigua

(Munz) W. M. Klein

Aliso 5: 179. 1962.

Warren L. Wagner
Basionym: Oenothera deltoides var. ambigua Munz Amer. J. Bot. 18: 315. 1931
Synonyms: Anogra simplex Small O. albicaulis var. decumbens S. Watson O. deltoides var. decumbens (S. Watson) Munz O. simplex (Small) Tidestrom
Treatment appears in FNA Volume 10.
Revision as of 21:01, 7 June 2022 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Herbs annual, strigillose, especially distally; from a taproot. Stems: central stem often thickened near base, branched from base, branches ascending to decumbent, not encircling stems in older plants, 5–25 cm. Leaves basal and cauline; blade rhombic-obovate to lanceolate, becoming oblanceolate to lanceolate distally, margins subentire, sometimes coarsely sinuate-dentate distally. Flowers: buds quadrangular in distal 1/2, with free tips 1–3 mm; sepals 20–30 mm; petals 18–35 mm. Capsules 40–70 × 1.5–5 mm. 2n = 14.


Phenology: Flowering (Mar–)Jun–Jul(–Sep).
Habitat: Sandy soil in Mojave Desert with Ambrosia, Cylindropuntia, or Larrea.
Elevation: 200–1300 m.

Distribution

Ariz., Nev., Utah.

Discussion

Subspecies ambigua is restricted to a relatively small area of Mojave Desert in southeastern Nevada and adjacent areas in southwestern Utah and Arizona. W. M. Klein (1964) determined subsp. ambigua to be self-incompatible.

Selected References

None.

Lower Taxa

None.
... more about "Oenothera deltoides subsp. ambigua"
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 fixation
versatile +
Anther some measurement
0.5 cm5 mm <br />0.005 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Apex width
1.5mm +  and 5mm +
Author
Warren L. Wagner +
Authority
(Munz) W. M. Klein +
Basal leaf arrangement
alternate +
Basal leaf position
cauline +
Basal leaf presence
absent +
Basal rosette length
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Basal rosette prominence
conspicuous +
Basal rosette width
1 cm10 mm <br />0.01 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
Oenothera deltoides var. ambigua +
Berry architecture or shape
nutlike +
Berry dehiscence
indehiscent +  and loculicidal +
Blade margin shape
sinuate-dentate +  and pinnatifid denticulate subentire or entire +
Blade shape
oblanceolate +  and lanceolate +
Branch atypical some measurement
40 cm400 mm <br />0.4 m <br /> (100 cm1,000 mm <br />1 m <br />) +
Branch orientation
ascending +  and decumbent +
Branch quantity
few +  and several +
Branch size
slender +
Branch some measurement
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Bud orientation
nodding +
Bud shape
quadrangular +
Capsule architecture
sessile +
Capsule architecture or shape
nutlike +
Capsule architecture or structure in adjective form
4-locular +
Capsule arrangement or shape
contorted +
Capsule atypical length
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Capsule condition or texture
dry +
Capsule course
straight +  and curved +
Capsule dehiscence
dehiscent +
Capsule length
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Capsule orientation
spreading +
Capsule quantity
1/2 +
Capsule shape
tapering +, cylindrical +  and slightly 4-angled +
Capsule texture
woody +
Capsule width
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Carpel quantity
Many (?) +
Cauline rosette atypical length
12 cm120 mm <br />0.12 m <br /> (18 cm180 mm <br />0.18 m <br />) +
Cauline rosette length
4 cm40 mm <br />0.04 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Cauline rosette width
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Cel reproduction
vegetative +
Central stem architecture
branched +
Central stem orientation
erect +
Central stem size or width
thickened +
Central stem texture
spongy +
Distribution
Ariz. +, Nev. +  and Utah. +
Elevation
200–1300 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
pink +  and white +
Epidermis relief
exfoliating +
Filament architecture
dithecal +
Filament fixation
basifixed +  and versatile +
Filament fusion
distinct +
Filament some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Floral-tube atypical some measurement
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Floral-tube duration
deciduous +
Floral-tube orientation
recurved +
Floral-tube presence
absent +
Floral-tube pubescence
hispid +, lanate +  and glabrous +
Floral-tube quantity
, +
Floral-tube some measurement
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 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 several +
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
Sandy soil in Mojave Desert with Ambrosia, Cylindropuntia, or Larrea. +
Hair height or length or size
short +
Hair position relational
interlocking +
Hair shape
curly +
Herb architecture
caulescent +
Herb architecture or function or pubescence
glandular +
Herb duration
annual +
Herb growth form
suffrutescent +
Herb pubescence
strigillose +
Indusium architecture
peltate +
Indusium prominence
conspicuous +
Inflorescence position
axillary +
Lateral branch height or length or size
short +
Lateral root orientation
spreading +
Leaf-axil orientation
nodding +  and erect +
Leaf architecture
simple +
Leaf arrangement
alternate +
Leaf atypical some measurement
13 cm130 mm <br />0.13 m <br /> (26 cm260 mm <br />0.26 m <br />) +
Leaf condition
later +
Leaf development
developed +
Leaf duration
deciduous +
Leaf position
cauline +  and basal +
Leaf presence
absent +
Leaf some measurement
1 cm10 mm <br />0.01 m <br /> (13 cm130 mm <br />0.13 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 +
Margin shape
subentire +
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 coloration
fading pink +  and deep pink +
Petal presence
absent +
Petal quantity
4 +
Petal shape
obcordate +
Petal some measurement
1.8 cm18 mm <br />0.018 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Petiole some measurement
1.5 cm15 mm <br />0.015 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Phenology
Flowering (Mar–)Jun–Jul(–Sep). +
Plant life cycle
older +
Pollen-grain dehiscence or orientation
longitudinal +
Pollen arrangement
singly +
Polyad arrangement
singly +
Proximal part reproduction
sterile +
Publication title
Aliso +
Publication year
1962 +
Raphide quantity
abundant +
Reference
None +
Root position
lateral +
Rosette development
developed +
Rosette position
basal +  and cauline +
Row atypical quantity
2 (4) +
Row quantity
1 +
Secretion condition
wet +
Secretion condition or texture
dry +
Secretion relief
papillate +
Secretion shape
clavate +  and globose +
Seed atypical quantity
1 (160) +
Seed coloration
buff +
Seed quantity
numerous +
Seed relief
sculptured +  and smooth +
Seed shape
obovoid +
Seed size
reduced +
Sepal arrangement or dehiscence
valvate +
Sepal atypical some measurement
1.3 cm13 mm <br />0.013 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Sepal coloration
not spotted +
Sepal duration
deciduous +
Sepal orientation
reflexed +
Sepal quantity
4 +
Sepal some measurement
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 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
with short , lateral branches +  and unbranched +
Stem growth form or orientation
decumbent +
Stem orientation
decumbent +  and ascending or erect +
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
3.5 cm35 mm <br />0.035 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 pubescence or relief
smooth +
Surface architecture or shape
entire +
Surface condition
wet +
Surface duration
persisting +
Surface life cycle
anthesis +
Surface prominence
obscured +
Surface quantity
7 (?) +
Surface relief
alveolate +
Surface shape
beaded +
Synonyms
Anogra simplex +, O. albicaulis var. decumbens +, O. deltoides var. decumbens +  and O. simplex +
Taxon family
Onagraceae +
Taxon name
Oenothera deltoides subsp. ambigua +
Taxon parent
Oenothera deltoides +
Taxon rank
subspecies +
Tetrad arrangement
singly +
Tetrad dehiscence
3(-5)-aperturate +
Tip fusion
free +
Tip height or length or size
short +
Tip some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
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 +