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Hydrocharis morsus-ranae L.
FROGBIT
European Frog-Bit; Common frogbit

Life   Plantae   Monocotyledoneae   Hydrocharitaceae   Hydrocharis

Hydrocharis morsus-ranae
© Les Mehrhoff, 2008-2010 · 3
Hydrocharis morsus-ranae

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Hydrocharis morsus-ranae
© Les Mehrhoff, 2008-2010 · 3
Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae

Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae

Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae

Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae

Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae

Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae

Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
© Copyright Malcolm Storey 2011-2118 · 3
Hydrocharis morsus-ranae

Associates · map
FamilyScientific name @ source (records)
Doassansiaceae  Tracya hydrocharidis @ BPI (17)

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Following modified from University of Florida, Center for Aquatic and Invasive Plants
   
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&pull 20q v5.145 20180528: Error 301 Moved Permanently http://plants.ifas.ufl.edu/node/186

Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=HYMO6 ---> https://plants.usda.gov/java/profile?symbol=HYMO6
https://plants.usda.gov/java/profile?symbol=HYMO6 ---> http://plants.usda.gov/core/profile?symbol=HYMO6
http://plants.usda.gov/core/profile?symbol=HYMO6 ---> https://plants.usda.gov/core/profile?symbol=HYMO6
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You are here: Home / Plant Profile

Hydrocharis morsus-ranae L.
common frogbit


General Information
Symbol: HYMO6
Group: Monocot
Family: Hydrocharitaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : CAN   I
L48   I
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   

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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 Liliopsida – Monocotyledons
Subclass Alismatidae
Order Hydrocharitales
Family Hydrocharitaceae – Tape-grass family
Genus Hydrocharis L. – hydrocharis
Species Hydrocharis morsus-ranae L. – common frogbit

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 .
California frogbit A list (noxious weeds)
Maine frogbit Invasive aquatic plant
Vermont frogbit Class B noxious weed
Washington European frog-bit Wetland and aquatic weed quarantine
U.S. Weed Information
Hydrocharis morsus-ranae frogbit 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.
STATE Assorted authors. State noxious weed lists for 46 states . State agriculture or natural resource departments.

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain OBL
Eastern Mountains and Piedmont OBL
Midwest OBL
Northcentral & Northeast OBL
Western Mountains, Valleys, and Coast OBL

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (HYMO6)
Flora of North America (HYMO6)
Integrated Taxonomic Information System (HYMO6)
Related Websites
Canada-Environment Canada (HYMO6)
Canada-Invasive Exotic Plant Fact Sheets (HYMO6)
Environment Canada, Canadian Wildlife Service: abstract & illustration (HYMO6)
FL-Center for Aquatic and Invasive Plants (HYMO6)
Global Invasive Species Database (HYMO6)
Invasive Exotic Plants of Canada: abstract & illustrations (HYMO6)

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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FNA | Family List | FNA Vol. 22 | Hydrocharitaceae | Hydrocharis

1. Hydrocharis morsus-ranae Linnaeus, Sp. Pl. 2: 1036. 1753.

European frog-bit

Herbs, to 20 cm. Rhizomes absent; stStolon buds with 1 root. Leaves floating or, in dense vegetation, emergent; blade 1.2--6 ´ 1.3--6.3 cm; primary veins forming 75--90° angle with midvein, broadly curving, aerenchyma confined to midvein region (not margin to margin as in Limnobium), individual aerenchyma space (located ca. 1 mm from either side of midvein) 0.1--0.5 mm across its longest axis, 0.1--0.5 mm wide, 1 mm from midvein. Flowers: staminate flowers 1--5 in each spathe; pedicel to 4 cm; stamens 9--12 in 4 whorls; filaments basally not obviously connate; pistillate flowers solitary; pedicels to 9 cm; styles 2-fid for less than ½ length. Seeds 1--1.3 mm. 2n = 28 (Netherlands).

Flowering spring--fall. Ponds, bays of rivers; 10--50 m; introduced; Ont., Que.; N.Y.; Eurasia.

Hydrocharis morsus-ranae was planted in ponds beside Dow's Lake in the Central Experimental Farm Arboretum at Ottawa in 1932 (P. M. Catling and W. G. Dore 1982). It apparently escaped from these ponds; by 1939 it was found in the Rideau Canal and by 1967 in the St. Lawrence River from Montreal as far as Lake St. Peter. It had spread into Lake Ontario, Lake Erie, and a couple of localities in New York (Catling and Dore 1982).

SELECTED REFERENCES

Gadella, T. W. J. and E. Kliphuis. 1973. Chromosome numbers of flowering plants in The Netherlands. VI. Proc. K. Ned. Acad. Wet., Ser. C, 76: 303---311.

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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Hydrocharis+morsus-ranae&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Hydrocharis+morsus-ranae&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 2
Query: SELECT * FROM img WHERE ready=1 and taxon like "Hydrocharis morsus-ranae%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
ID: 0000 0000 0306 1677 [detail]
© 2006 Louis-M. Landry

Hydrocharis morsus-ranae
Hydrocharis morsus-ranae
(shown with Lemna minor )
ID: 0000 0000 0408 1881 [detail]
© 2008 Louis-M. Landry

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