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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)
\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
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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
Curly Pondweed
Potamogeton
crispus
60
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
2
Small Pondweed (tenuissimus)
Potamogeton
pusillus
ssp.
tenuissimus
0
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
3
Ribbon-leaved Pondweed
Potamogeton
epihydrus
34
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
4
Small Pondweed
Potamogeton
pusillus
16
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
5
Illinois Pondweed
Potamogeton
illinoensis
15
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
6
Long-leaved Pondweed
Potamogeton
nodosus
33
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
7
Spotted Pondweed
Potamogeton
pulcher
9
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
8
Robbins's Pondweed
Potamogeton
robbinsii
4
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
9
Flatstem Pondweed
Potamogeton
zosteriformis
2
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
10
Variableleaf Pondweed
Potamogeton
gramineus
2
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
11
Vasey's Pondweed
Potamogeton
vaseyi
1
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
12
Large-leaved Pondweed
Potamogeton
amplifolius
12
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
13
Waterthread Pondweed
Potamogeton
diversifolius
54
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
14
Leafy Pondweed
Potamogeton
foliosus
22
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
15
Floating Pondweed
Potamogeton
natans
4
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
16
Claspingleaf Pondweed
Potamogeton
perfoliatus
60
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
17
Small Pondweed (pusillus)
Potamogeton
pusillus
ssp.
pusillus
7
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
18
Spiral Pondweed
Potamogeton
spirillus
12
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
19
Snailseed Pondweed
Potamogeton
bicupulatus
1
Pondweed Family
Potamogetonaceae
Najadales
Magnoliopsida
Plantae
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