familyBrassicaceae
tribeBrassicaceae tribe Thelypodieae
genusThelypodium
speciesThelypodium howellii
subspeciesThelypodium howellii subsp. howellii

Thelypodium howellii subsp. howellii

Ihsan A. Al-Shehbaz
EndemicConservation concern
Synonyms: Streptanthus coombsiae Eastwood Thelypodium simplex Greene
Treatment appears in FNA Volume 7. Treatment on page 732.

Basal leaves: blade oblanceolate, margins usually lyrate, rarely dentate or entire. Flowers: petals usually linear to narrowly oblanceolate, rarely spatulate, 0.5–1.2 (–3) mm wide; median filaments connate most of their lengths. Fruits 1.5–4.5 (–7) cm. 2n = 26.


Phenology: Flowering May–Jul.
Habitat: Desert shrub communities, alkaline meadows and flats
Elevation: 100-1600 m

Distribution

V7 1276-distribution-map.gif

Calif., Oreg., Wash.

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.

"elongated" is not a number."thick" is not a number."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

... more about "Thelypodium howellii subsp. howellii"
RDF feed
2n chromosome quantity
26 +
Androecium position
hypogynous +
Anther architecture
coiled +
Anther arrangement or course or shape
linear +
Anther atypical some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
Anther dehiscence
dehiscing +
Anther position
slightly exserted +  and included +
Anther shape
usually linear +  and linear-oblong rarely oblong or ovate +
Anther some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Author
Ihsan A. Al-Shehbaz +
Authority
S. Watson +
Basal leaf architecture
petiolate +
Basal leaf arrangement
not +  and rosulate +
Base arrangement
opposite +
Base atypical some measurement
8mm (14.5mm) +
Base course
straight +
Base fragility or size
stout +
Base orientation
incurved +, divaricate-ascending +  and ascending +
Base presence
absent +
Base shape
not flattened +
Base some measurement
0.35 cm3.5 mm <br />0.0035 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Basionyms
Pachypodium +
Blade architecture
appendaged +  and unappendaged +
Blade atypical length
9.7 cm97 mm <br />0.097 m <br /> (14.5 cm145 mm <br />0.145 m <br />) +
Blade atypical width
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Blade base shape
not +  and auriculate +
Blade length
1 cm10 mm <br />0.01 m <br /> (9.7 cm97 mm <br />0.097 m <br />) +
Blade margin architecture or shape
entire +
Blade margin shape
laciniate +, lobed +, lyrate +  and dentate +
Blade shape
oblanceolate +
Blade size
much smaller +  and reduced +
Blade width
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Bract presence
absent +
Calyx shape
urceolate +, campanulate +  and tubular +
Caudex architecture
branched +  and simple +
Caudex texture
woody +
Cauline leaf architecture
sessile +
Claw development
well-developed +
Claw fusion
distinct +
Claw presence
absent +
Claw variability
differentiated +
Cotyledon architecture or shape
emarginate +  and entire +
Cotyledon arrangement
accumbent +  and incumbent +
Cotyledon orientation or shape
oblique +
Cotyledon shape
3[2]-fid +
Disc presence
absent +
Distribution
Calif. +, Oreg. +  and Wash. +
Elevation
100-1600 m +
Embryo course
straight +  and curved +
Endosperm orientation
absent +
Filament architecture
tetradynamous +
Filament atypical some measurement
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Filament fusion
connate +  and distinct +
Filament position
lateral +  and median +
Filament some measurement
0.45 cm4.5 mm <br />0.0045 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flower architecture
zygomorphic +  and actinomorphic +
Flower architecture or arrangement or growth form
solitary +
Flower atypical some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Flower coloration
purple;lavender;purple;lavender;white +
Flower reproduction
bisexual +
Flower shape
dilated +, spatulate +  and obovate or oblanceolate +
Flower some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Fruit architecture
stipitate +
Fruit architecture or pubescence or relief
smooth +
Fruit arrangement
divaricate +
Fruit arrangement or course or shape
linear +
Fruit atypical length
6.5 cm65 mm <br />0.065 m <br /> (8.2 cm82 mm <br />0.082 m <br />) +
Fruit atypical some measurement
4.5 cm45 mm <br />0.045 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Fruit atypical width
0.13 cm1.3 mm <br />0.0013 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Fruit course
straight +
Fruit dehiscence
dehiscent +
Fruit length
1.5 cm15 mm <br />0.015 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
Fruit orientation
incurved +, erect +  and ascending +
Fruit shape
terete +  and torulose +
Fruit some measurement
1.5 cm15 mm <br />0.015 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Fruit width
0.1 cm1 mm <br />0.001 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
Gynophore fusion
distinct +
Gynophore presence
absent +
Habitat
Desert shrub communities, alkaline meadows and flats +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Inflorescence arrangement
racemose +
Inflorescence position or structure subtype
terminal +
Juice odor or shape
pungent +
Juice pubescence or texture
watery +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
alternate +, not +  and rosulate +
Leaf position
cauline +  and basal +
Leaf presence
absent +
Leaf quantity
Not (?) +
Lobe arrangement
connivent +
Lobe fusion
connate +  and distinct +
Lobe length
Elongated (?) +
Lobe orientation
spreading +
Lobe shape
decurrent +
Margin architecture or shape
entire +  and dentate +
Margin shape
lyrate +
Median filament fusion
connate +
Median gland presence
absent +
Mericarp architecture
1-seeded +
Midvein prominence
prominent +
Nectar gland arrangement
confluent +
Nectar gland position
lateral +
Nectar gland quantity
4 +  and 2 +
Nectar gland variability
variable +
Number of lower taxa
0 +
Ovary architecture
eseptate +
Ovary architecture or structure in adjective form
1-locular +  and 2-locular +
Ovary placentation
parietal +
Ovary position
apical +
Ovule architecture
tenuinucellate +, crassinucellate +  and bitegmic +
Ovule orientation
campylotropous +  and anatropous +
Ovule quantity
22;40 +
Pair arrangement
decussate +
Pair quantity
2 (?) +
Pedicel presence
absent +
Perianth position
hypogynous +
Petal arrangement
alternate +
Petal atypical length
1.65 cm16.5 mm <br />0.0165 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
Petal atypical width
0.27 cm2.7 mm <br />0.0027 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Petal coloration
lavender +  and purple +
Petal length
9mm;16.5mm +
Petal presence
absent +
Petal prominence
rudimentary +
Petal quantity
4 +
Petal shape
spatulate +, usually linear +  and narrowly oblanceolate +
Petal width
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Petiole architecture or pubescence or shape
ciliate +
Petiole some measurement
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Phenology
Flowering May–Jul. +
Pistil architecture
2-carpellate +
Pistil quantity
1 +
Placenta quantity
2 +
Pollen-grain architecture
trinucleate +  and 3(-11)-colpate +
Pollen architecture
3-colpate +
Publication title
Proc. Amer. Acad. Arts +
Publication year
1886 +
Raceme architecture
ebracteate +
Raceme architecture or arrangement
lax +
Raceme arrangement
divaricate +
Raceme orientation
reflexed +, erect +  and ascending +
Raceme size
stout +  and slender +
Radicle architecture
coiled +
Radicle arrangement
accumbent +
Radicle arrangement or vernation
conduplicate +
Radicle orientation
incumbent +
Radicle size
tiny +
Reference
None +
Replum prominence
indistinct +
Replum shape
rounded +
Rhizome size
slender +
Rorippa quantity
4 +
Seed-coat coating
mucilaginous +
Seed architecture
not winged +
Seed architecture or arrangement
uniseriate +
Seed arrangement
aseriate +, uniseriate +  and biseriate +
Seed atypical length
0.17 cm1.7 mm <br />0.0017 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Seed coating
not +  and mucilaginous +
Seed coloration
white +, black +, brown +  and yellow +
Seed length
0.12 cm1.2 mm <br />0.0012 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
Seed shape
ovate +, oblong +  and flattened +
Seed size
plump +
Seed width
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Sepal architecture or shape
not basally +  and saccate +
Sepal atypical length
0.85 cm8.5 mm <br />0.0085 m <br /> (1.15 cm11.5 mm <br />0.0115 m <br />) +
Sepal atypical width
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Sepal duration
persistent +  and caducous +
Sepal fusion
distinct +
Sepal length
? (?) +
Sepal orientation
erect +
Sepal position
lateral +
Sepal quantity
4 +
Sepal shape
lanceolate +  and linear +
Sepal width
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Septum architecture
complete +
Septum presence
absent +
Septum size
reduced +
Silicle architecture
latiseptate +, schizocarpic +, samaroid +  and lomentaceous +
Silicle architecture or pubescence or relief
smooth +
Silicle dehiscence
indehiscent +  and dehiscent +
Silicle l w ratio
0-3 +
Silicle shape
angustiseptate +, flat +, angled +, terete +, torulose +, not +, segmented +  and nutletlike +
Slit dehiscence or orientation
longitudinal +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V7/V7 1276.xml +
Special status
Endemic +  and Conservation concern +
Stamen architecture
tetradynamous +
Stamen atypical quantity
8 (24) +
Stamen length
equal +
Stamen quantity
6 +
Stamen size
subequal +
Stem architecture
branched +
Stem growth form
procumbent +  and decumbent +
Stem growth form or orientation
decumbent +
Stem orientation
erect +
Stigma architecture or shape
entire +  and capitate +
Stigma shape
2-lobed +  and entire +
Stipule architecture
subsessile +, sessile +  and petiolate +
Stipule presence
absent +
Style atypical some measurement
0.27 cm2.7 mm <br />0.0027 m <br /> (0.43 cm4.3 mm <br />0.0043 m <br />) +
Style duration
persistent +
Style fusion
distinct +
Style presence
absent +
Style prominence
obsolete +
Style quantity
1 +
Style shape
subclavate +  and cylindrical +
Style some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
Synonyms
Streptanthus coombsiae +  and Thelypodium simplex +
Taxon family
Brassicaceae +
Taxon name
Thelypodium howellii subsp. howellii +
Taxon parent
Thelypodium howellii +
Taxon rank
subspecies +
Trichome architecture
dendritic +  and simple +
Trichome arrangement or shape
stellate +
Trichome presence
absent +
Trichome shape
forked +
Valve architecture
coiled +, 1-7-veined +  and veined +
Valve dehiscence
dehiscing +
Valve pubescence
glabrous +
Vein architecture
anastomosing +
Volume
Volume 7 +
Whole-organism architecture
not scapose +
Whole-organism duration
perennial +  and biennial +
Whole-organism pubescence
glaucous +  and glabrous +
Whole organism architecture
eglandular +
Whole organism duration
perennial +, biennial +  and annual +
Whole organism growth form
subshrub +  and shrub +
Whole organism growth form or habitat
aquatics +  and terrestrial +
Whole organism location
submerged +
Whole organism pubescence
glabrous +  and pubescent +
Whorl quantity
2 +
X chromosome quantity
13 +