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Maryland Checklist - Order: Hydrocharitales - all-time (Total: 10)
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Adventive
\n
Coastal Plain only
\n
Endangered (Federal)
\n
Endangered (MD)
\n
Excluded
\n
Exotic
\n
Extinct
\n
Extirpated
\n
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\n
G1 (Highly globally rare)
\n
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\n
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\n
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\n
G3 (Globally rare/local)
\n
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\n
G4
\n
G4G5
\n
G5
\n
Garrett only
\n
GH (No known extant occurrences)
\n
GU (Global status uncertain)
\n
Hybrid
\n
In need of conservation
\n
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\n
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\n
Non-native
\n
Reviewable (MD/DCRC)
\n
S1 (Highly state rare)
\n
S1B (Highly state rare breeder)
\n
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\n
S1N (State rare non-breeder)
\n
S1S2 (Highly state rare)
\n
S1S2B (State rare breeder)
\n
S2 (State rare)
\n
S2B (State rare breeder)
\n
S2B (State rare breeder)
\n
S2S3 (State rare)
\n
S2S3B (State rare breeder)
\n
S3 (Watch list)
\n
S3B (State watchlist breeder)
\n
S3S4
\n
S3S4B (State watchlist breeder)
\n
S4SE
\n
SH (Historical)
\n
SHB (State historical breeder)
\n
SR (State rare)
\n
Status Uncertain
\n
SUB (Status uncertain breeder)
\n
SXB (State extirpated breeder)
\n
SXM (State extirpated migrant)
\n
Threatened (Federal)
\n
Threatened (MD)
\n
Undescribed
\n
Vulnerable
\n
Waif
\n
Western MD only
\n
Worcester only
\n
Photos
Common Name
Genus
Species
Records
Category
Family
Order
Class
Kingdom
1
Nodding Waternymph
Najas
flexilis
9
Tape-grass Family
Hydrocharitaceae
Hydrocharitales
Magnoliopsida
Plantae
2
Southern Waternymph
Najas
guadalupensis
ssp.
guadalupensis
18
Tape-grass Family
Hydrocharitaceae
Hydrocharitales
Magnoliopsida
Plantae
3
Canadian Waterweed
Elodea
canadensis
24
Tape-grass Family
Hydrocharitaceae
Hydrocharitales
Magnoliopsida
Plantae
4
Hydrilla
Hydrilla
verticillata
80
Tape-grass Family
Hydrocharitaceae
Hydrocharitales
Magnoliopsida
Plantae
5
American Eelgrass
Vallisneria
americana
40
Tape-grass Family
Hydrocharitaceae
Hydrocharitales
Magnoliopsida
Plantae
6
Slender Waternymph
Najas
gracillima
7
Tape-grass Family
Hydrocharitaceae
Hydrocharitales
Magnoliopsida
Plantae
7
Brazilian Waterweed
Egeria
densa
6
Tape-grass Family
Hydrocharitaceae
Hydrocharitales
Magnoliopsida
Plantae
8
Western Waterweed
Elodea
nuttallii
22
Tape-grass Family
Hydrocharitaceae
Hydrocharitales
Magnoliopsida
Plantae
9
American Frog's-bit
Limnobium
spongia
34
Tape-grass Family
Hydrocharitaceae
Hydrocharitales
Magnoliopsida
Plantae
10
Brittle Waternymph
Najas
minor
31
Tape-grass Family
Hydrocharitaceae
Hydrocharitales
Magnoliopsida
Plantae
