Armoracia rusticana P. Gaertn., B. Mey. &. Scherb.
Armoracia lapathifolia Gilib nom inval; Cochlearia armoracia L; Horseradish
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Armoracia rusticana
© Copyright Malcolm Storey 2011-2118 · 3
Armoracia rusticana

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Associates · map
FamilyScientific name @ source (records)
Albuginaceae  Albugo candida @ BPI (28)
Aphididae  Aphis ( @ CSUC_TCN (2)
Cercopidae  Philaenus spumarius @ AMNH_IZC (1)
Erysiphaceae  Oidium fusisporioides @ BPI (1)
Mycosphaerellaceae  Cercospora armoraciae @ BPI (11)

Mycosphaerella armoraciae @ BPI (2)

Ramularia armoraciae @ BPI (22)
Pentatomidae  Murgantia histrionica @ UDCC_TCN (5)
Pleosporaceae  Alternaria armoraciae @ BPI (1)

Alternaria brassicae @ BPI (9)

Alternaria herculea @ BPI (3)

Alternaria @ BPI (1)

Macrosporium herculeum @ BPI (8)
_  Ascochyta armoraciae @ BPI (4)

Ascochyta rusticana @ BPI (2)

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Armoracia rusticana G. Gaertn., B. Mey. & Scherb.

Image of Armoracia rusticana

General Information
Symbol: ARRU4
Group: Dicot
Family: Brassicaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : CAN   I
L48   I
Data Source and Documentation
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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 thumbnail to view an image, or see all the Armoracia thumbnails at the Plants Gallery

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 2: 163. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .



Symbol Scientific Name
ARAR16 Armoracia armoracia (L.) Britton, nom. inval.
ARLA23 Armoracia lapathifolia Gilib.
COAR10 Cochlearia armoracia L.
NAAR4 Nasturtium armoracia (L.) Fr.
RAAR5 Radicula armoracia (L.) B.L. Rob.
ROAR4 Rorippa armoracia (L.) Hitchc.


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 Armoracia G. Gaertn., B. Mey. & Scherb. – armoracia
Species Armoracia rusticana G. Gaertn., B. Mey. & Scherb. – horseradish

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (ARRU4)
CalPhotos (ARRU4)
Integrated Taxonomic Information System (ARAR16)
Integrated Taxonomic Information System (ARLA23)
Integrated Taxonomic Information System (ARRU4)
Integrated Taxonomic Information System (COAR10)
Integrated Taxonomic Information System (NAAR4)
Integrated Taxonomic Information System (RAAR5)
Integrated Taxonomic Information System (ROAR4)
Jepson Interchange (University of California - Berkeley) (ARRU4)
Kemper Center for Home Gardening (ARRU4)
Native American Ethnobotany (University of Michigan - Dearborn) (ARRU4)
University of Tennessee Herbarium (Distribution) (ARRU4)
University of Wisconsin - Stevens Point Freckmann Herbarium (ARRU4)



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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FNA Vol. 7 Page 457 , 459 , 460, 555 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 7 | Brassicaceae | Armoracia

1. Armoracia rusticana P. Gaertner, B. Meyer & Scherbius, Oekon. Fl. Wetterau. 2: 426. 1800.

Cochlearia armoracia Linnaeus; Rorippa armoracia (Linnaeus) A. S. Hitchcock

Roots fusiform or cylindrical, fleshy or woody. Stems 5-12 (-20) dm. Basal leaves: petiole to 60 cm (broadly expanded basally); blade broadly oblong, oblong-lanceolate, or ovate, (10-)20-45(-60) cm × (30-)50-120(-170) mm, margins usually coarsely crenate, rarely pinnatifid. Cauline leaves: proximal shortly petiolate, blade oblong to linear-oblong (lobed), smaller than basal, margins pinnatifid or pinnatisect; distal sessile or shortly petiolate, blade linear to linear-lanceolate, base cuneate or attenuate, margins usually serrate or crenate, rarely entire. Racemes to 40 cm. Fruiting pedicels ascending, 8-20 mm. Flowers: sepals 2-4 mm; petals obovate or oblanceolate, 5-7 (-8) mm, claw to 1.5 mm; filaments 1-2.5 mm; anthers 0.5-0.8 mm. Fruits (rarely produced), 4-6 mm; style obsolete or to 0.5 mm; stigma well-developed. Seeds compressed (often not produced, rarely to 4 per locule). 2 n = 32.

Flowering Mar-Jul. Fields, moist stream banks, roadsides, ditches, disturbed sites, open woods, along railroads, shallow ponds, marshes, waste places; 0-1100 m; introduced; B.C., Man., N.B., N.S., Ont., P.E.I., Que., Sask.; Calif., Colo., Conn., Idaho, Ill., Ind., Iowa, Maine, Mass., Mich., Minn., Mo., Mont., Nebr., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Oreg., Pa., R.I., S.Dak., Tenn., Utah, Vt., Va., Wash., W.Va., Wis., Wyo.; Europe; Asia; introduced also nearly worldwide.

Armoracia rusticana has been widely cultivated for about 2000 years for its fleshy roots that are grated to produce the pungent horseradish sauce. The plant is also a noxious weed that is very difficult to eradicate, even tiny root fragments are capable of regenerating new plants.

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Number of matches : 6
Query: SELECT * FROM img WHERE ready=1 and taxon like "Armoracia rusticana%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Armoracia rusticana
Armoracia rusticana
ID: 0000 0000 0801 0883 [detail]
© 1999 Dean Wm. Taylor

Armoracia rusticana
Armoracia rusticana
ID: 0000 0000 0311 0698 [detail]
© 2011 Louis-M. Landry

Armoracia rusticana
Armoracia rusticana
ID: 0000 0000 0311 0699 [detail]
© 2011 Louis-M. Landry

Armoracia rusticana
Armoracia rusticana
ID: 0000 0000 0910 0001 [detail]
© 2010 Cristian Singer

Armoracia rusticana
Armoracia rusticana
ID: 0000 0000 0910 0003 [detail]
© 2010 Cristian Singer

Armoracia rusticana
Armoracia rusticana
ID: 0000 0000 0910 0002 [detail]
© 2010 Cristian Singer

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