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Najas minor All.
BRITTLE WATERNYMPH
Brittle naiad; Eutrophic water-nymph

Life   Plantae   Monocotyledoneae   Najadaceae   Najas

Najas minor
© Les Mehrhoff, 2008-2010 · 1
Najas minor

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Najas minor
© Les Mehrhoff, 2008-2010 · 1
Najas minor
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Following modified from Flora of Taiwan, National Taiwan University
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&pull 20q v5.145 20180528: Error 301 Moved Permanently http://tai2.ntu.edu.tw/udth/bin/fot1.exe/browse?bid=5&page=33

Following modified from Taiwan Biodiversity National Information Network
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Kingdom Plantae  
 Phylum Tracheophyta  
 Class Magnoliopsida  
 Order Alismatales  
 Family Hydrocharitaceae  
 Genus Najas  
  Najas minor    Allioni, 1785 
Provider: Ching-I Peng 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Caulinia fragilis Caulinia minor Fluvialis minor Ittnera minor Najas dichotoma Najas fragilis Najas minor intermedia Najas minor longifolia Najas minor spinosa Najas moshanensis Najas subulata details
Citation: Flora of Taiwan 2nd ed. 5: 33, 2000
Name Code: 201877
  IUCN Red List:LC      
Suggested Link    Discover Life    Flora of Taiwan 2nd eBooks (National Taiwan University)  
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https://plants.usda.gov/java/profile?symbol=NAMI ---> http://plants.usda.gov/core/profile?symbol=NAMI
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Najas minor All.
brittle waternymph

Image of Najas minor

General Information
Symbol: NAMI
Group: Monocot
Family: Najadaceae
Duration: Annual
Growth Habit : Forb/herb
Native Status : CAN   I
L48   I
Characteristics
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 Najas thumbnails at the Plants Gallery

Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species . Northeast National Technical Center, Chester. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements .

USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. Provided by NRCS National Wetland Team . Usage Requirements .

slideshow

Synonyms

Symbol Scientific Name
CAMI28 Caulinia minor (All.) Coss. & Germ.

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 Najadales
Family Najadaceae – Water-nymph family
Genus Najas L. – waternymph
Species Najas minor All. – brittle waternymph

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 .
Alabama spinyleaf naiad Class C noxious weed
Connecticut brittle water-nymph Potentially invasive, banned
Maine European naiad Invasive aquatic plant
Massachusetts brittle water-nymph, lesser naiad Prohibited
South Carolina slender niad Invasive aquatic plant brittleleaf naiad Plant pest
Washington slender-leaved naiad, brittle naiad Wetland and aquatic weed quarantine
U.S. Weed Information
Najas minor brittle waternymph 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.
SEEPPC Southeast Exotic Pest Plant Council. 1996. Invasive exotic pest plants in Tennessee (19 October 1999). Research Committee of the Tennessee Exotic Pest Plant Council. Tennessee.

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain OBL
Eastern Mountains and Piedmont OBL
Great Plains OBL
Midwest OBL
Northcentral & Northeast OBL

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (NAMI)
Flora of North America (NAMI)
Integrated Taxonomic Information System (CAMI28)
Integrated Taxonomic Information System (NAMI)
USF Atlas of Florida Vascular Plants (NAMI)
University of Tennessee Herbarium (Distribution) (NAMI)
Related Websites
Invasive Plant Atlas of New England (NAMI)

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 | Family List | FNA Vol. 22 | Najadaceae | Najas

7. Najas minor Allioni, Flora Pedemontana. 2: 221. 1785.

Stems profusely branched near apex distally, 11--120 cm ´ 0.2--1 mm; internodes 0.5--5.8 cm, without prickles abaxially. Leaves usually recurved with age, 0.5--3.4 cm, stiff in age; sheath 1--3 mm wide, apex truncate to auriculate; blade 0.1--1.2 mm wide, margins conspicuously serrulate, teeth 7--15 per side, apex acute, with 1--2 teeth, teeth multicellular; midvein without prickles abaxially. Flowers 1--2 per axil, staminate and pistillate on same plant. Staminate flowers in distal axils, 1.9--2.2 mm; involucre 2-lobed, beaks 0.4--2.1 mm; anther 1-loculed, 0.3 mm.

Flowering summer--fall. Ponds, lakes, and slow- moving streams; 0--500 m; introduced; Ala., Del., Fla., Ga., Ill., Ind., Ky., La., Mass., Mich., Miss., Mo., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Vt., Va., W.Va.; Eurasia; Africa.

Pistillate flowers in distal to proximal axils, 2.2 mm; styles 1--1.2 mm; stigmas 2-lobed. Seeds slightly recurved, purplish, fusiform, 1.5--3 ´ 0.5--0.7 mm, apex with style situated at center; testa dull, 3 cell layers thick, pitted; aeroleareoles regularly arranged in ca. 15 longitudinal rows, ladderlike, 4-angled, broader than long, end walls not raised. 2n = 24.

Najas minor, with its mature leaves recurved and with its aeroleareoles broader than long and arranged in longitudinal rows like the rungs of a ladder, is one of the more distinctive species of Najas. Young sterile individuals resemble N. gracillima, however.

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Najas+minor&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=Najas+minor&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 "Najas minor%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Najas minor
Najas minor
ID: 0000 0000 0113 2165 [detail]
© 2013 Jake Ruygt

Najas minor
Najas minor
ID: 0000 0000 0113 2166 [detail]
© 2013 Jake Ruygt

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


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