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Descurainia pinnata (Walter) Britton
TANSY-MUSTARD
Western tansymustard

Life   Plantae   Dicotyledoneae   Brassicaceae   Descurainia

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Descurainia pinnata
© Copyright Bobby Hattaway 2011 · 5
Descurainia pinnata
Descurainia pinnata
© Copyright Bobby Hattaway 2011 · 5
Descurainia pinnata

Descurainia pinnata
© Copyright Bobby Hattaway 2011 · 5
Descurainia pinnata
Descurainia pinnata
© Copyright Bobby Hattaway 2011 · 5
Descurainia pinnata

Descurainia pinnata
© Copyright Bobby Hattaway 2011 · 5
Descurainia pinnata
Descurainia pinnata
© Copyright Jennifer Larson 2012 · 2
Descurainia pinnata

Descurainia pinnata
© Copyright Jennifer Larson 2012 · 2
Descurainia pinnata
Descurainia pinnata, leaf and flower and fruit
© Kay Yatskievych, 2003 · 1
Descurainia pinnata, leaf and flower and fruit

Descurainia pinnata, seed
© Copyright Seeds USID 2015 · 1
Descurainia pinnata, seed
Descurainia pinnata, seed
© Copyright Seeds USID 2015 · 1
Descurainia pinnata, seed

Descurainia pinnata, seed
© Copyright Seeds USID 2015 · 1
Descurainia pinnata, seed

Associates · map
FamilyScientific name @ source (records)
Albuginaceae  Albugo candida @ BPI (7)
Andrenidae  Andrena candida @ BBSL (6)

Andrena capricornis @ BBSL (1)

Andrena illinoiensis @ BBSL (4)

Andrena livida @ BBSL (4)

Andrena melanochroa @ BBSL (2)

Andrena piperi @ BBSL (1)

Andrena prunorum @ BBSL (1)

Andrena scurra @ BBSL (3)
Colletidae  Colletes phaceliae @ BBSL (1)

Hylaeus wootoni @ UCRC_ENT (1)
Halictidae  Halictus ligatus @ AMNH_BEE (1)

Halictus parallelus @ AMNH_BEE (1)

Lasioglossum incompletum @ BBSL (1)

Lasioglossum pruinosum @ BBSL (1)

Lasioglossum pulveris @ BBSL (2)

Lasioglossum sedi @ BBSL (1)

Lasioglossum sisymbrii @ BBSL (3)
Miridae  Orthotylus whiteheadi @ AMNH_IZC (4)
Peronosporaceae  Peronospora parasitica @ BPI (14)

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&pull 20q v5.145 20180528: Error 500 Can't connect to pick18.pick.uga.edu:80 http://pick18.pick.uga.edu/mp/20p?see=I_USID275&res=320

Following modified from MissouriPlants.com
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Descurainia pinnata (Walt.) Britt.

Tansy Mustard

Descurainia pinnata plant

Family - Brassicaceae

Stems - To +70cm tall, herbaceous, erect, typically multiple from stout taproot, branching above, dense glandular pubescent.

Descurainia pinnata stem

Leaves - Alternate, sessile, to +15cm long, 6-7cm broad, reduced upward, pinnate to deeply pinnatifid, pubescence simple, forked, or branching, also glandular. Leaflets typically pinnatifid. Leaf rachis channeled above.

Descurainia pinnata leaf

Inflorescence - Terminal raceme, very compact in flower, much elongating in fruit, to + 25cm long (tall). Flowers on short pedicels to 4mm long, typically glabrous. Pedicels elongating in fruit.

Descurainia pinnata inflorescence Inflorescence.

Flowers - Petals 4, yellow, -2mm long, 1mm broad, glabrous, spreading to recurving slightly at apex, obtuse at apex. Stamens 6. Filaments to 1.5mm long, yellow, glabrous. Anthers yellow, .2mm long. Ovary terete, subcylindric, 1mm long. Siliques to +/-1cm long, 2mm in diameter, subterete to 4-angled, many seeded. Seeds brown, 1mm in diameter. Fruiting pedicel to 1.5cm long.

Flowering - March - June.

Habitat - Waste ground, disturbed sites, open woods, prairies, glades, roadsides, railroads.

Origin - Native to U.S.

Other info. - This species is common in Missouri and can be found throughout the state. Another species, D. sophia (L.) Webb , which is introduced from Europe, is becoming common. The two can be distinguished by fruit size and leaf character.
I didn't get pics of the flowers of D. pinnata , but they are very close to those of D. sophia , so check out that page to see the flowers.

Photographs taken at Eagle Bluffs Conservation Area, Boone County, MO., 4-11-04.


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You are here: Home / Plant Profile

Descurainia pinnata (Walter) Britton
western tansymustard

Image of Descurainia pinnata

General Information
Symbol: DEPI
Group: Dicot
Family: Brassicaceae
Duration: Annual
Biennial
Perennial
Growth Habit : Forb/herb
Native Status : CAN   N
L48   N
Data Source and Documentation
About our new maps
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   

Images

click on a thumbnail to view an image, or see all the Descurainia thumbnails at the Plants Gallery

©Al Schneider. Southwest Colorado Wildflowers . United States, CO, NM, AZ, UT, Four Corners vicinity, within 150 miles of the corners. Usage Requirements .

©Al Schneider. Southwest Colorado Wildflowers . United States, CO, NM, AZ, UT, Four Corners vicinity, within 150 miles of the corners. Usage Requirements .

©Al Schneider. Southwest Colorado Wildflowers . United States, CO, NM, AZ, UT, Four Corners vicinity, within 150 miles of the corners. Usage Requirements .

©Gary A. Monroe. United States, NV, Churchill Co., Hot Springs Mountains. May 16, 2005. Usage Requirements .

©Gary A. Monroe. United States, NV, Churchill Co., Hot Springs Mountains. May 16, 2005. Usage Requirements .

Patrick J. Alexander. Usage Requirements .

Patrick J. Alexander. Usage Requirements .

Patrick J. Alexander. Usage Requirements .

slideshow

Synonyms

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Dilleniidae
Order Capparales
Family Brassicaceae ⁄ Cruciferae – Mustard family
Genus Descurainia Webb & Bethel. – tansymustard
Species Descurainia pinnata (Walter) Britton – western tansymustard

Subordinate Taxa

The Plants Database includes the following 10 subspecies of Descurainia pinnata . Click below on a thumbnail map or name for subspecies profiles. Plant is native (blue) Native Plant is introduced Introduced Plant is introduced Native and Introduced Related taxa legend Distribution of <i>
Descurainia pinnata</i>
(Walter) Britton ssp. <i>
brachycarpa</i>
(Richardson) Detling
Descurainia pinnata ssp. brachycarpa
western tansymustard Distribution of <i>
Descurainia pinnata</i>
(Walter) Britton ssp. <i>
filipes</i>
(A. Gray) Detling
Descurainia pinnata ssp. filipes
western tansymustard Distribution of <i>
Descurainia pinnata</i>
(Walter) Britton ssp. <i>
glabra</i>
(Wooton & Standl.) Detling
Descurainia pinnata ssp. glabra
western tansymustard Distribution of <i>
Descurainia pinnata</i>
(Walter) Britton ssp. <i>
halictorum</i>
(Cockerell) Detling
Descurainia pinnata ssp. halictorum
western tansymustard Distribution of <i>
Descurainia pinnata</i>
(Walter) Britton ssp. <i>
intermedia</i>
(Rydb.) Detling
Descurainia pinnata ssp. intermedia
western tansymustard Distribution of <i>
Descurainia pinnata</i>
(Walter) Britton ssp. <i>
menziesii</i>
(DC.) Detling
Descurainia pinnata ssp. menziesii
Menzies' tansymustard Distribution of <i>
Descurainia pinnata</i>
(Walter) Britton ssp. <i>
nelsonii</i>
(Rydb.) Detling
Descurainia pinnata ssp. nelsonii
Nelson's tansymustard Distribution of <i>
Descurainia pinnata</i>
(Walter) Britton ssp. <i>
ochroleuca</i>
(Wooton) Detling
Descurainia pinnata ssp. ochroleuca
western tansymustard Distribution of <i>
Descurainia pinnata</i>
(Walter) Britton ssp. <i>
paysonii</i>
Detling
Descurainia pinnata ssp. paysonii
Payson's tansymustard Distribution of <i>
Descurainia pinnata</i>
(Walter) Britton ssp. <i>
pinnata </i>
Descurainia pinnata ssp. pinnata
western tansymustard

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Ohio tansy-mustard Threatened
U.S. Weed Information
Descurainia pinnata green tansymustard tansymustard This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.
NE&GP Stubbendieck, J., G.Y. Friisoe,and M.R. Bolick. 1994. Weeds of Nebraska and the Great Plains . Nebraska Department of Agriculture, Bureau of Plant Industry. Lincoln, Nebraska.
SWSS Southern Weed Science Society. 1998. Weeds of the United States and Canada. CD-ROM . Southern Weed Science Society. Champaign, Illinois.

Wetland Status

Interpreting Wetland Status

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (DEPI)
CalPhotos (DEPI)
Integrated Taxonomic Information System (DEPI)
Jepson Interchange (University of California - Berkeley) (DEPI)
Lady Bird Johnson Wildflower Center Native Plant Information Network (DEPI)
Native American Ethnobotany (University of Michigan - Dearborn) (DEPI)
USDA Forest Service Fire Effects Information System (DEPI)
USF Atlas of Florida Vascular Plants (DEPI)
Related Websites
Arizona: abstract & image of tansymustard (Descurainia pinnata) (DEPI)
Atlas of Florida Vascular Plants: dicot pick list (DEPI)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds
Everitt Low Minor

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds
Everitt

Sources

Everitt, J.H., D.L. Drawe, and R.I. Lonard. 1999. Field guide to the broad leaved herbaceous plants of South Texas used by livestock and wildlife . Texas Tech University Press. Lubbock.

Description of Values

Value Class Food Cover
High Average 25-50% of diet Regular source of cover
Low 5-10% of diet Infrequently used as cover
Minor 2-5% of diet Sparsely used as cover
Moderate Average 10-25% of diet Occasional source of cover


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Following modified from Flora of North America
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Link to Flora of North America home
 
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FNA Vol. 7 Page 519, 520, 521, 523, 525, 526 , 527 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Brassicaceae | Descurainia

11. Descurainia pinnata (Walter) Britton, Mem. Torrey Bot. Club. 5: 173. 1894.

Erysimum pinnatum Walter, Fl. Carol. 174. 1788; Sophia pinnata (Walter) Howell

Annuals; glandular or egland-ular; sparsely to densely pubescent, sometimes glabrous distally, canescent or not, trichomes dendritic. Stems erect, unbranched or branched basally and/or distally, (0.8-)1.3-5.7(-9.2) dm. Basal leaves: petiole 0.5-3.6 cm; blade 1- or 2-pinnate, ovate or oblong to oblanceolate in outline, 1-15 cm, lateral lobes (4-9 pairs), linear or oblanceolate to ovate, margins entire or dentate. Cauline leaves sessile or shortly petiolate; blade smaller distally, distal lobes often narrower, surfaces densely pubescent. Racemes considerably elongated in fruit. Fruiting pedicels usually ascending to divaricate or horizontal, rarely descending (at 20-110º angle), straight or slightly recurved, 4-18 (-23) mm. Flowers: sepals spreading to ascending, yellow, purple, or rose, oblong, 0.8-2.6 mm, pubescent; petals (whitish or yellow), narrowly oblanceolate, 1-3 × 0.3-1 mm; median filaments 1-2.8 mm; anthers 0.2-0.4 mm. Fruits erect to ascending, usually clavate, rarely broadly linear (wider distally), not torulose, 4-13(-17) × 1.2-2.2 mm; valves each with distinct midvein; septum not veined; ovules 16-40 per ovary; style obsolete, 0.02-0.2 mm, glabrous. Seeds biseriate, reddish brown, oblong, 0.6-0.9 × 0.4-0.5 mm.

Subspecies 4 (4 in the flora): North America, n Mexico.

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