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Rorippa amphibia (L. ) Besser
GREAT YELLOW-CRESS
Sisymbrium amphibium L; Great yellowcress

Life   Plantae   Dicotyledoneae   Brassicaceae   Rorippa

Rorippa amphibia
© Les Mehrhoff, 2008-2010 · 8
Rorippa amphibia

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

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

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

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

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

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

Rorippa amphibia
© Les Mehrhoff, 2008-2010 · 2
Rorippa amphibia
Rorippa amphibia
© Les Mehrhoff, 2008-2010 · 1
Rorippa amphibia

Associates · map
FamilyScientific name @ source (records)
Albuginaceae  Albugo candida @ BPI (1)
Mycosphaerellaceae  Cercospora armoraciae @ BPI (1)
_  Urophlyctis magnusiana @ BPI (1)

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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=ROAM ---> https://plants.usda.gov/java/profile?symbol=ROAM
https://plants.usda.gov/java/profile?symbol=ROAM ---> http://plants.usda.gov/core/profile?symbol=ROAM
http://plants.usda.gov/core/profile?symbol=ROAM ---> https://plants.usda.gov/core/profile?symbol=ROAM
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Rorippa amphibia (L.) Besser
great yellowcress


General Information
Symbol: ROAM
Group: Dicot
Family: Brassicaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : CAN   I
L48   I
Data Source and Documentation
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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   

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Synonyms

Symbol Scientific Name
NAAM2 Nasturtium amphibium (L.) W.T. Aiton
SIAM5 Sisymbrium amphibium L.

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 Rorippa Scop. – yellowcress
Species Rorippa amphibia (L.) Besser – great yellowcress

Subordinate Taxa

This plant has no children

Legal Status

Noxious Weed 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 noxious weed list for that location, or click here for a composite list of all Federal and State Noxious Weeds .
Massachusetts water yellowcress, great yellowcress Prohibited

Wetland Status

Interpreting Wetland Status

North America
Northcentral & Northeast FACW

Related Links

More Accounts and Images
Integrated Taxonomic Information System (NAAM2)
Integrated Taxonomic Information System (ROAM)
Integrated Taxonomic Information System (SIAM5)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

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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FNA Vol. 7 Page 494, 495, 497 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Brassicaceae | Rorippa

2. Rorippa amphibia (Linnaeus) Besser, Enum. Pl. 27. 1821. (as Roripa).

Sisymbrium amphibium Linnaeus, Sp. Pl. 2: 657. 1753; Armoracia amphibia (Linnaeus) Petermann; Brachiolobos amphibius (Linnaeus) Allioni; Cochlearia amphibia (Linnaeus) Ledebour; Myagrum amphibium (Linnaeus) Loiseleur; Nasturtium amphibium (Linnaeus) W. T. Aiton; Radicula amphibia (Linnaeus) Druce

Perennials; (submerged aquatic, rooting from proximal nodes, forming clumps); glabrous or pubescent proximally on young leaves. Stems prostrate basally (hollow), branched, (2-)4-12(-13) dm. Basal leaves not rosulate; blade margins pinnatifid. Cauline leaves (proximal) petiolate, (distal) sessile; blade pectinate or pinnatisect to pinnatifid (especially when submerged), oblanceolate to elliptic, 4-12 cm × 5-30 mm, base auriculate or not, margins entire or denticulate to serrate (emergent ones usually undivided, rarely lobed). Racemes considerably elongated. Fruiting pedicels horizontal to reflexed, straight or recurved, (5-)7-15 (-18) mm. Flowers: sepals erect, oblong, 2.5-3.5 × 1-1.7 mm; petals yellow, obovate, (3.3-)3.8-5.5 (-6.2) × 1.5-2.5 mm; median filaments 3-4 mm; anthers ovate, 0.7-1 mm. Fruits silicles, straight, ovoid-oblong, (2.5-)3-5.5(-7) × 1.7-2.7(-3) mm; valves glabrous; ovules 36-62 per ovary; style (0.5-)1-2.2(-2.5) mm. Seeds biseriate, reddish brown, ovoid, 0.7-1 mm (0.5-0.6 mm diam.), colliculate. 2 n = 16, 32.

Flowering Jun-Aug. Lakeshores, marshes, ponds, streams; introduced; Que.; Maine, N.Y.; Europe; Asia.

Updated: 2018-06-19 11:45:02 gmt
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