familyOnagraceae
subfamilyOnagraceae subfam. Onagroideae
tribeOnagraceae tribe Onagreae
genusGayophytum
speciesGayophytum diffusum
subspeciesGayophytum diffusum subsp. parviflorum

Gayophytum diffusum subsp. parviflorum

H. Lewis & Szweykowski

Brittonia 16: 386, figs. 5B, 17B. 1964.

Harlan Lewis†, Warren L. Wagner
Synonyms: Gayophytum diffusum var. strictipes (Hooker) Dorn G. lasiospermum Greene G. lasiospermum var. hoffmannii Munz G. nuttallii var. abramsii Munz G. nuttallii var. intermedium (Rydberg) Munz G. ramosissimum var. strictipes Hooker
Treatment appears in FNA Volume 10.
Please click on the illustration for a higher resolution version.
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Flowers: sepals 0.9–2 mm; petals 1.2–3 mm; stigma subglobose, surrounded by anthers at anthesis. 2n = 28.


Phenology: Flowering Jun–Oct.
Habitat: Open pine forests, sagebrush slopes, dry margins of meadows.
Elevation: 800–3700 m.

Distribution

B.C., Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., S.Dak., Utah, Wash., Wyo., Mexico (Baja California)

Discussion

Subspecies parviflorum is extremely variable and may sometimes closely resemble diploid species Gayophytum decipiens, G. heterozygum, G. oligospermum, and G. ramosissimum, the first of which are hypothesized to have been involved in its origin and variation (H. Lewis and J. Szweykowski 1964).

Selected References

None.

Lower Taxa

None.
... more about "Gayophytum diffusum subsp. parviflorum"
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2n chromosome quantity
28 +
Androecium position
epigynous +
Anther fixation
basifixed +
Area coloration
greenish yellow +
Area quantity
1 +
Author
Harlan Lewis† +  and Warren L. Wagner +
Authority
H. Lewis & Szweykowski +
Basal leaf arrangement
alternate +
Berry architecture or shape
nutlike +
Berry dehiscence
indehiscent +  and loculicidal +
Between branches stem architecture
branched +  and unbranched +
Between branches stem orientation
erect +
Between locules pattern arrangement
alternating +
Between seeds constriction prominence
conspicuous +  and inconspicuous +
Blade margin architecture or shape
entire +
Blade margin shape
lobed +, toothed +  and entire +
Blade shape
lanceolate +
Bud orientation
erect +
Capsule architecture or shape
nutlike +
Capsule condition or texture
dry +
Capsule course
curved +  and straight +
Capsule dehiscence
dehiscent +
Capsule length
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Capsule orientation
ascending +  and reflexed +
Capsule shape
subterete +
Capsule size
constricted +
Capsule width
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Carpel quantity
Many (?) +
Cel reproduction
vegetative +
Distal node architecture
dichotomous +  and branching +
Distribution
B.C. +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, S.Dak. +, Utah +, Wash. +, Wyo. +  and Mexico (Baja California) +
Elevation
800–3700 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 relief
exfoliating +
Filament architecture
dithecal +
Filament fixation
basifixed +  and versatile +
Filament fusion
distinct +
Floral-tube duration
deciduous +
Floral-tube presence
absent +
Floral-tube prominence
inconspicuous +
Floral-tube quantity
, +
Flower architecture
actinomorphic +
Flower architecture or arrangement or growth form
solitary +
Flower orientation
arising +
Flower part duration
deciduous +
Flower part life cycle
anthesis +
Flower reproduction
bisexual +
Fruit course
curved +  and straight +
Fruit dehiscence
dehiscent +
Fruit shape
subterete +  and flattened +
Fruit size
constricted +
Habitat
Open pine forests, sagebrush slopes, dry margins of meadows. +
Herb architecture
caulescent +
Herb duration
annual +
Herb pubescence
villous +, usually glabrous +  and strigillose +
Illustration
Present +
Inflorescence life cycle
flowering +
Inflorescence orientation
erect +
Inflorescence position
axillary +
Lateral branch length
shortened +
Lateral branch some measurement
5 cm50 mm <br />0.05 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Leaf architecture
simple +
Leaf arrangement
subopposite +  and alternate +
Leaf duration
deciduous +
Leaf length
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Leaf position
cauline +
Leaf size
reduced +
Leaf width
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Lobe quantity
Many (?) +
Locule quantity
many +
Nectary position
basal +
Nectary presence
absent +
Node quantity
1 +  and 20 +
Number of lower taxa
0 +
Ovary architecture or structure in adjective form
2-locular +
Ovary position
inferior +
Ovule architecture
bitegmic +
Ovule arrangement or growth form
clustered +
Ovule orientation
anatropous +
Ovule quantity
numerous +  and 1 +
Panicle life cycle
flowering +
Panicle orientation
erect +
Pedicel atypical some measurement
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Pedicel height or length or size
usually shorter +
Pedicel some measurement
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Perianth position
epigynous +
Petal arrangement
imbricate +
Petal arrangement or shape
convolute +
Petal atypical some measurement
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Petal coloration
red +, fading pink +  and white +
Petal presence
absent +
Petal quantity
4 +
Petal shape
clawed +
Petal some measurement
0.12 cm1.2 mm <br />0.0012 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Petiole some measurement
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Phenology
Flowering Jun–Oct. +
Pollen-grain dehiscence or orientation
longitudinal +
Pollen arrangement
singly +
Pollen reproduction
fertile +
Polyad arrangement
singly +
Publication title
Brittonia +
Publication year
1964 +
Raceme life cycle
flowering +
Raceme orientation
erect +
Raphide quantity
abundant +
Reference
None +
Rosette position
basal +  and cauline +
Row architecture or course
irregular +
Row quantity
single +  and 2 +
Secretion condition
wet +
Secretion condition or texture
dry +
Secretion relief
papillate +
Secretion shape
clavate +  and globose +
Seed arrangement
spaced +, overlapping +, crowded +, parallel +  and arranged +
Seed atypical quantity
3 (6) +
Seed coloration
mottled with gray +  and brown +
Seed development
developing +
Seed length
0.1 cm1 mm <br />0.001 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
Seed pubescence
puberulent +  and glabrous +
Seed quantity
6 +  and 18 +
Seed relief
sculptured +  and smooth +
Seed shape
ovoid +
Seed width
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Sepal arrangement
in pairs +  and singly +
Sepal arrangement or dehiscence
valvate +
Sepal atypical some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Sepal coloration
purple +, pink +, red +  and green +
Sepal duration
deciduous +
Sepal orientation
reflexed +
Sepal quantity
4 +
Sepal some measurement
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Septum architecture
parenchymatous +
Septum arrangement
parietal +, axile +  and placentation +
Septum course
sinuous +  and straight +
Septum fixation
attached +
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 +
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 or quantity
2 times as many or as many as sepals +
Stem architecture
unbranched +  and branched +
Stem fragility
delicate +
Stem growth form or orientation
prostrate +  and decumbent +
Stem orientation
spreading +  and erect +
Stigma position relational
surrounded +
Stigma quantity
1 +
Stigma shape
subglobose +
Stipule architecture
petiolate +  and sessile +
Stipule duration
caducous +
Stipule position
intrapetiolar +
Stipule presence
absent +
Stipule size
small +
Style quantity
1 +
Subshrub architecture
unarmed +
Subshrub growth form
not clonal +
Subshrub habitat
aquatic +, amphibious +  and terrestrial +
Surface condition
wet +
Surface relief
non-papillate +
Synonyms
Gayophytum diffusum var. strictipes +, G. lasiospermum +, G. lasiospermum var. hoffmannii +, G. nuttallii var. abramsii +, G. nuttallii var. intermedium +  and G. ramosissimum var. strictipes +
Taproot architecture
branched +  and simple +
Taxon family
Onagraceae +
Taxon name
Gayophytum diffusum subsp. parviflorum +
Taxon parent
Gayophytum diffusum +
Taxon rank
subspecies +
Tetrad arrangement
singly +
Tetrad dehiscence
3(-5)-aperturate +
Valve architecture
pedicellate +
Valve fusion
free +
Valve margin shape
undulate +
Valve quantity
2 (?) +
Viscin thread dehiscence or orientation
longitudinal +
Viscin thread fusion
united +
Volume
Volume 10 +
Wing architecture
smooth +  and erose +
Wing condition or texture
dry +
Wing relief
papillate +
Wing width
thick +