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Maryland Checklist - Genus: Potamogeton - all-time (Total: 19)
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Adventive
\n
Coastal Plain only
\n
Endangered (Federal)
\n
Endangered (MD)
\n
Excluded
\n
Exotic
\n
Extinct
\n
Extirpated
\n
Extralimital
\n
G1 (Highly globally rare)
\n
G1G2 (Highly globally rare)
\n
G2 (Globally rare)
\n
G2G3 (Globally rare)
\n
G3 (Globally rare/local)
\n
G3G4 (Globally vulnerable)
\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
Invasive
\n
Nativity Uncertain
\n
Non-native
\n
Reviewable (MD/DCRC)
\n
S1 (Highly state rare)
\n
S1B (Highly state rare breeder)
\n
S1M (State rare migrant)
\n
S1N (State rare non-breeder)
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S1S2 (Highly state rare)
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S1S2B (State rare breeder)
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S2 (State rare)
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S2B (State rare breeder)
\n
S2B (State rare breeder)
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S2S3 (State rare)
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S2S3B (State rare breeder)
\n
S3 (Watch list)
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S3B (State watchlist breeder)
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S3S4
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S3S4B (State watchlist breeder)
\n
S4SE
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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
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Vulnerable
\n
Waif
\n
Western MD only
\n
Worcester only
\n
Photos
Common Name
Genus
Species
Records
Category
Family
Order
Class
Kingdom
1
Vasey's Pondweed
Potamogeton
vaseyi
1
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
2
Large-leaved Pondweed
Potamogeton
amplifolius
11
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
3
Waterthread Pondweed
Potamogeton
diversifolius
51
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
4
Leafy Pondweed
Potamogeton
foliosus
22
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
5
Floating Pondweed
Potamogeton
natans
4
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
6
Claspingleaf Pondweed
Potamogeton
perfoliatus
60
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
7
Small Pondweed (pusillus)
Potamogeton
pusillus
ssp.
pusillus
7
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
8
Spiral Pondweed
Potamogeton
spirillus
12
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
9
Snailseed Pondweed
Potamogeton
bicupulatus
1
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
10
Curly Pondweed
Potamogeton
crispus
58
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
11
Small Pondweed (tenuissimus)
Potamogeton
pusillus
ssp.
tenuissimus
0
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
12
Ribbon-leaved Pondweed
Potamogeton
epihydrus
32
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
13
Small Pondweed
Potamogeton
pusillus
16
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
14
Illinois Pondweed
Potamogeton
illinoensis
15
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
15
Long-leaved Pondweed
Potamogeton
nodosus
33
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
16
Spotted Pondweed
Potamogeton
pulcher
9
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
17
Robbins's Pondweed
Potamogeton
robbinsii
4
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
18
Flatstem Pondweed
Potamogeton
zosteriformis
2
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
19
Variableleaf Pondweed
Potamogeton
gramineus
2
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
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