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Rorippa palustris (L.) Besser
Marsh Watercress; Yellow Cress; Yellow Marsh-cress; Marsh Yellow-cress; Marsh Cress; Sisymbrium amphibium var palustre L; Sisymbrium palustre L Leyss; Nasturtium palustre L Dc; Nasturtium terrestre With Aiton; Sisymbrium terrestre With; Nasturtium semipinnatifidum Hook; Nasturtium terrestre var semipinnatifidum Hook Hookf; Cardamine palustris f barbareaefolia Delile Kuntze; Sisymbrium barbareaefolium Delile; Nasturtium palustre; Rorippa islandica

Life   Plantae   Dicotyledoneae   Brassicaceae   Rorippa

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Rorippa palustris
© Copyright Mel Harte 2010 · 3
Rorippa palustris
Rorippa palustris
© Copyright Mel Harte 2010 · 3
Rorippa palustris

Rorippa palustris
© Copyright Mel Harte 2010 · 3
Rorippa palustris
Rorippa palustris
© Copyright Mel Harte 2010 · 3
Rorippa palustris

Rorippa palustris
© Les Mehrhoff, 2008-2010 · 3
Rorippa palustris
Rorippa palustris
© Copyright Malcolm Storey 2011-2118 · 3
Rorippa palustris

Rorippa palustris
© Copyright Malcolm Storey 2011-2118 · 3
Rorippa palustris
Rorippa palustris
© Copyright Malcolm Storey 2011-2118 · 3
Rorippa palustris

Rorippa palustris
© Copyright Malcolm Storey 2011-2118 · 3
Rorippa palustris
Rorippa palustris
© Copyright Malcolm Storey 2011-2118 · 3
Rorippa palustris

Rorippa palustris
© Copyright Malcolm Storey 2011-2118 · 3
Rorippa palustris
Rorippa palustris
© Copyright Malcolm Storey 2011-2118 · 3
Rorippa palustris

Rorippa palustris
© Copyright Malcolm Storey 2011-2118 · 3
Rorippa palustris
Rorippa palustris
© Copyright Malcolm Storey 2011-2118 · 3
Rorippa palustris

Associates · map
FamilyScientific name @ source (records)
Albuginaceae  Albugo candida @ BPI (2)
Aphididae  Lipaphis erysimi @ AMNH_PBI (1)
Mycosphaerellaceae  Cercospora nasturtii @ BPI (1)
Peronosporaceae  Peronospora parasitica @ BPI (1)

Peronospora roripae-islandicae @ BPI (1)

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Following modified from Delaware Wildflowers
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Delaware Wildflowers  •  Scientific names

Rorippa palustris (L.) Bess. var. palustris ( Rorippa islandica var. microcarpa ) Bog Yellowcress
Brassicaceae — Mustard family
Rorippa palustris var. palustris
Cedar Swamp Wildlife Area
June 2002

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Photos copyright David G. Smith

Delaware Wildflowers main page

Following modified from Taiwan Biodiversity National Information Network
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Kingdom Plantae  
 Phylum Tracheophyta  
 Class Magnoliopsida  
 Order Brassicales  
 Family Brassicaceae  
 Genus Rorippa  
  Rorippa palustris    (L.) Besser 
Provider: Ching-I Peng 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Nasturtium densiflorum Nasturtium homalospermum Nasturtium semipinnatifidum Rorippa nasturtioides Sisymbrium hybridum   details
Citation: Flora of Taiwan 2nd ed. 6: 58, 2003; Wu, S. H., C. F. Hsieh, and Marcel Rejmanek. 2004. Catalogue of the Naturalized Flora of Taiwan. Taiwania
Name Code: 202656
Suggested Link    Discover Life    Flora of Taiwan 2nd eBooks (National Taiwan University)    Nature Campus  
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http://plants.usda.gov/java/profile?symbol=ROPA2 ---> https://plants.usda.gov/java/profile?symbol=ROPA2
https://plants.usda.gov/java/profile?symbol=ROPA2 ---> http://plants.usda.gov/core/profile?symbol=ROPA2
http://plants.usda.gov/core/profile?symbol=ROPA2 ---> https://plants.usda.gov/core/profile?symbol=ROPA2
Link: Skip repetitive navigation links
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Rorippa palustris (L.) Besser
bog yellowcress

General Information
Symbol: ROPA2
Group: Dicot
Family: Brassicaceae
Duration: Annual
Growth Habit : Forb/herb
Native Status : AK   N
L48   N
PR   I
Data Source and Documentation
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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   





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 Rorippa Scop. – yellowcress
Species Rorippa palustris (L.) Besser – bog yellowcress

Subordinate Taxa

The Plants Database includes the following 4 subspecies of Rorippa palustris . 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>
Rorippa palustris</i>
(L.) Besser ssp. <i>
(Butters & Abbe) Jonsell
Rorippa palustris ssp. fernaldiana
Fernald's yellowcress Distribution of <i>
Rorippa palustris</i>
(L.) Besser ssp. <i>
(Desv.) Jonsell
Rorippa palustris ssp. hispida
hispid yellowcress Distribution of <i>
Rorippa palustris</i>
(L.) Besser ssp. <i>
(S. Watson) Abrams
Rorippa palustris ssp. occidentalis
western bog yellowcress Distribution of <i>
Rorippa palustris</i>
(L.) Besser ssp. <i>
palustris </i>
Rorippa palustris ssp. palustris
bog yellowcress

Legal Status

U.S. Weed Information
Rorippa palustris bog marshcress bog yellowcress common yellowcress marsh yellowcress marshcress yellow watercress 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.
N'EAST Uva, R.H., J.C. Neal,and J.M. DiTomaso. 1997. Weeds of the Northeast . Cornell University Press. Ithaca, New York.
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.

Wetland Status

Interpreting Wetland Status

Top Level Regions
Caribbean FACW
North America
Alaska FAC
Arid West OBL
Atlantic and Gulf Coastal Plain OBL
Eastern Mountains and Piedmont OBL
Great Plains OBL
Midwest OBL
Northcentral & Northeast OBL
Western Mountains, Valleys, and Coast OBL

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (ROPA2)
Integrated Taxonomic Information System (ROPA2)
Jepson Interchange (University of California - Berkeley) (ROPA2)
Lady Bird Johnson Wildflower Center Native Plant Information Network (ROPA2)
University of Wisconsin - Stevens Point Freckmann Herbarium (ROPA2)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food 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 | Family List | FNA Vol. 7 | Brassicaceae | Rorippa

14. Rorippa palustris (Linnaeus) Besser, Enum. Pl. 27. 1821. (as Roripa).

Sisymbrium amphibium Linnaeus var. palustre Linnaeus, Sp. Pl. 2: 657. 1753; Brachiolobos palustris (Linnaeus) Clairville; Cardamine palustris (Linnaeus) Kuntze; Caroli-Gmelina palustris (Linnaeus) P. Gaertner, B. Meyer & Scherbius; Myagrum palustre (Linnaeus) Lamarck; Nasturtium palustre (Linnaeus) de Candolle; Radicula palustris (Linnaeus) Moench

Annuals or, rarely, perennials; (short-lived, terrestrial or of wet habitat, not submerged); usually glabrous, rarely hirsute, (trichomes cylindrical). Stems (often simple from base), erect, branched distally, (0.5-)1-10 (-14) dm, (sometimes hirsute proximally). Basal leaves rosulate; blade [(4-)6-20(-30) cm × 10-50(-80) mm] margins lyrate-pinnatisect, (abaxial surface sometimes hirsute). Cauline leaves petiolate or subsessile; blade lyrate-pinnatisect, (lateral lobes oblong or ovate when present), (1.5-)2.5-10(-18) cm × (5-)8-25(-30) mm, (lateral lobes smaller than terminal), base auriculate or amplexicaul, margins subentire or irregularly dentate, sinuate, serrate, or crenate, (abaxial surface sometimes hirsute). Racemes often considerably elongated. Fruiting pedicels divaricate or slightly to strongly reflexed, straight or curved, (2.5-)3-10(-14) mm. Flowers: sepals erect, oblong, 1.5-2.4(-2.6) × 0.5-1 mm; petals yellow or pale yellow, spatulate, (1.5-)1.8-2.5(-3) × 0.5-1.5(-2) mm; median filaments 1-2.5 mm; anthers ovate, 0.3-0.5 mm. Fruits usually silicles, rarely siliques, often slightly curved, oblong, ellipsoid, or oblong-ovoid, (2.5-)4-10 × (1.5-)1.7-3(-3.5) mm; ovules 20-90 per ovary; style 0.2-1(-1.2) mm. Seeds biseriate, brown to yellowish brown, ovoid or subglobose, 0.5-0.7(-0.9) mm (0.4- 0.6(-0.7) mm diam.), colliculate.

Subspecies 2 (2 in the flora): North America, Europe, Asia; introduced in n Mexico, South America, Australia.

Updated: 2020-05-29 20:43:47 gmt
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