familyOnagraceae
subfamilyOnagraceae subfam. Onagroideae
tribeOnagraceae tribe Onagreae
genusChylismia
sectionChylismia sect. Chylismia
speciesChylismia claviformis
subspeciesChylismia claviformis subsp. peirsonii

Chylismia claviformis subsp. peirsonii

(Munz) W. L. Wagner & Hoch

Syst. Bot. Monogr. 83: 207. 2007.

Warren L. Wagner
Basionym: Oenothera claviformis var. peirsonii Munz Amer. J. Bot. 15: 238. 1928
Synonyms: Camissonia claviformis subsp. peirsonii (Munz) P. H. Raven Chylismia peirsonii (Munz) D. A. Johansen O. claviformis subsp. peirsonii (Munz) P. H. Raven
Treatment appears in FNA Volume 10.

Herbs villous, at least proximally, rarely strigillose or glandular puberulent. Stems 5–60 cm. Leaves: blade lateral lobes usually well developed, terminal lobe narrowly ovate, to 9 × 3.5 cm, margins irregularly sinuate-dentate. Flowers opening at sunset; buds with conspicuous, subapical free tips; floral-tube orangebrown inside, 2.5–4.5 mm; petals usually yellow, rarely white, not changing color in fading, 4.5–7 mm. 2n = 14.


Phenology: Flowering Feb–Apr.
Habitat: Sandy flats or washes, with Ambrosia dumosa, Fouquieria splendens, and Larrea.
Elevation: -70–400 m.

Distribution

Calif., Mexico (Baja California)

Discussion

Subspecies peirsonii is known from east of the Salton Sea and Imperial Valley in Imperial and San Diego counties, California, and in northeastern Baja California to the Gulf of California. It intergrades with subsp. aurantiaca.

Selected References

None.

Lower Taxa

None.

"elongating" is not a number.

... more about "Chylismia claviformis subsp. peirsonii"
RDF feed
2n chromosome quantity
14 +
Androecium position
epigynous +
Anther architecture or pubescence or shape
ciliate +
Anther fixation
versatile +
Anther some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Author
Warren L. Wagner +
Authority
(Munz) W. L. Wagner & Hoch +
Basal leaf arrangement
alternate +
Basal rosette development
well-developed +
Base coloration
darker flecks +
Basionyms
Oenothera claviformis var. peirsonii +
Berry architecture or shape
nutlike +
Berry dehiscence
indehiscent +  and loculicidal +
Blade margin shape
lobed +, toothed +  and entire +
Blade presence
absent +
Blade shape
lobed +
Blade size
reduced +
Bud orientation
reflexed +  and erect +
Capsule architecture
pedicellate +
Capsule architecture or shape
nutlike +
Capsule condition or texture
dry +
Capsule course
curved +  and straight +
Capsule dehiscence
loculicidal +
Capsule orientation
ascending +  and spreading +
Capsule shape
clavate +
Capsule some measurement
0.8 cm8 mm <br />0.008 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Carpel quantity
Many (?) +
Cel reproduction
vegetative +
Distribution
Calif. +  and Mexico (Baja California) +
Elevation
-70–400 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 +
Filament architecture
dithecal +
Filament fixation
basifixed +  and versatile +
Filament fusion
distinct +
Filament some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
Floral-tube coloration
orangebrown +
Floral-tube duration
deciduous +
Floral-tube presence
absent +
Floral-tube pubescence
villous +
Floral-tube quantity
, +
Floral-tube some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Flower architecture
actinomorphic +
Flower architecture or arrangement or growth form
solitary +
Flower part duration
deciduous +
Flower part life cycle
anthesis +
Flower reproduction
bisexual +
Fruit architecture
pedicellate +
Fruit course
curved +  and straight +
Fruit dehiscence
loculicidal +
Fruit shape
oblong-cylindrical +, clavate +  and subterete +
Habitat
Sandy flats or washes, with Ambrosia dumosa, Fouquieria splendens, and Larrea. +
Herb architecture
caulescent +
Herb architecture or function or pubescence
glandular +
Herb duration
annual +
Herb pubescence
puberulent +, glandular +, strigillose +  and villous +
Inflorescence position
axillary +
Inflorescences raceme orientation
nodding +  and erect +
Lateral lobe development
developed +
Lateral lobe shape
unlobed +  and lobed +
Leaf architecture
simple +
Leaf arrangement
alternate +
Leaf duration
deciduous +
Leaf length
1.5 cm15 mm <br />0.015 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Leaf position
cauline +
Leaf presence
absent +
Leaf size
reduced +
Leaf width
0.3 cm3 mm <br />0.003 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Lobe architecture or course
irregular +
Lobe arrangement
scattered +
Lobe development
developed +
Lobe position
lateral +
Lobe presence
absent +
Lobe quantity
Many (?) +
Lobe size
reduced +
Locule quantity
many +
Margin architecture or shape
sinuate-dentate +
Margin prominence
pronounced +
Margin texture
membranous +
Nectary presence
absent +
Number of lower taxa
0 +
Oil cell coloration
brown +
Oil cell prominence
conspicuous +
Ovary architecture or structure in adjective form
4-locular +
Ovary position
inferior +
Ovule architecture
bitegmic +
Ovule arrangement or growth form
clustered +
Ovule orientation
anatropous +
Ovule quantity
numerous +  and 1 +
Pedicel some measurement
0.4 cm4 mm <br />0.004 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Perianth position
epigynous +
Petal arrangement
imbricate +
Petal arrangement or shape
convolute +
Petal character
not color +
Petal coloration
white +  and yellow +
Petal presence
absent +
Petal quantity
4 +
Petal shape
clawed +
Petal some measurement
0.45 cm4.5 mm <br />0.0045 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Petiole some measurement
0.7 cm7 mm <br />0.007 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Phenology
Flowering Feb–Apr. +
Pollen-grain dehiscence or orientation
longitudinal +
Pollen arrangement
singly +
Polyad arrangement
singly +
Publication title
Syst. Bot. Monogr. +
Publication year
2007 +
Raceme orientation
nodding +
Raphide quantity
abundant +
Reference
None +
Rosette development
well-developed +
Rosette position
basal +  and cauline +
Row quantity
2 +
Secretion condition
wet +
Secretion condition or texture
dry +
Secretion relief
papillate +
Secretion shape
clavate +  and globose +
Seed quantity
7 +  and numerous +
Seed relief
pitted +
Seed shape
lenticular +  and narrowly ovoid +
Seed some measurement
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Sepal arrangement
singly +
Sepal arrangement or dehiscence
valvate +
Sepal coloration
purple +, pink +, red +  and green +
Sepal duration
deciduous +
Sepal orientation
reflexed +
Sepal quantity
4 +
Sepal some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Septum architecture
parenchymatous +
Septum arrangement
parietal +, axile +  and placentation +
Septum presence
absent +
Septum width
thin +
Series length or size
longer +
Series quantity
1 +, 4 +  and 2 +
Series size
subequal +
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
subequal +
Stamen size or quantity
2 times as many or as many as sepals +
Stem architecture
branched +
Stem growth form or orientation
prostrate +  and decumbent +
Stem orientation
erect +
Stem some measurement
5 cm50 mm <br />0.05 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Stigma architecture
conical-peltate +
Stigma architecture or shape
capitate +  and entire +
Stigma quantity
1 +
Stigma shape
4-lobed +
Stipule architecture
long-petiolate +
Stipule duration
caducous +
Stipule position
intrapetiolar +
Stipule presence
absent +
Stipule size
small +
Style quantity
1 +
Style some measurement
0.5 cm5 mm <br />0.005 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Subapical tip fusion
free +
Subapical tip prominence
conspicuous +
Subshrub architecture
unarmed +
Subshrub growth form
not clonal +
Subshrub habitat
aquatic +, amphibious +  and terrestrial +
Surface condition
wet +
Surface relief
non-papillate +
Synonyms
Camissonia claviformis subsp. peirsonii +, Chylismia peirsonii +  and O. claviformis subsp. peirsonii +
Taxon family
Onagraceae +
Taxon name
Chylismia claviformis subsp. peirsonii +
Taxon parent
Chylismia claviformis +
Taxon rank
subspecies +
Terminal lobe length
0 cm0 mm <br />0 m <br /> (9 cm90 mm <br />0.09 m <br />) +
Terminal lobe shape
ovate +
Terminal lobe width
0 cm0 mm <br />0 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Tetrad arrangement
singly +
Tetrad dehiscence
3(-5)-aperturate +
Tip fusion
free +
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 +