Photos / Sounds

What

Water Lettuce (Pistia stratiotes)

Observer

erinw03

Date

September 18, 2022 07:01 PM EDT

Photos / Sounds

Observer

anaarenaria

Date

September 13, 2022 07:22 PM CEST

Photos / Sounds

What

Watermilfoil Leafcutter Moth (Parapoynx allionealis)

Observer

lgardella

Date

July 28, 2020 04:06 PM EDT

Photos / Sounds

What

Fennel-leaf Pondweed (Stuckenia pectinata)

Observer

cladonia_chris

Date

July 2022

Place

Ohio, US (Google, OSM)

Photos / Sounds

What

Eurasian Water-Milfoil (Myriophyllum spicatum)

Observer

srmyers

Date

June 18, 2022 09:37 AM EDT

Photos / Sounds

What

Curly-leaf Pondweed (Potamogeton crispus)

Observer

grazing

Date

May 13, 2021 10:00 AM EDT

Description

Completely submerged in water. Was in a flowing stream. About a foot wide stream. Couldn’t tell if the stream was a annual or perennial stream

Photos / Sounds

What

Fennel-leaf Pondweed (Stuckenia pectinata)

Observer

rachelnypaver

Date

July 9, 2019 11:05 AM EDT

Photos / Sounds

What

Fennel-leaf Pondweed (Stuckenia pectinata)

Observer

asmedley

Date

August 24, 2020 10:52 AM EDT

Photos / Sounds

What

Hydrilla (Hydrilla verticillata)

Observer

tomkennedy

Date

December 23, 2010 02:45 PM MST

Photos / Sounds

What

European Frog-Bit (Hydrocharis morsus-ranae)

Observer

vladimirtravkin

Date

August 28, 2021 06:31 AM +04

Description

Водоём недалеко от пересечения Самарского шоссе и Тихой улицы.
Together with Stratiotes aloides.

Photos / Sounds

What

Brazilian Waterweed (Egeria densa)

Observer

cyst007

Date

September 28, 2007 02:14 PM UTC

Photos / Sounds

What

Hydrilla (Hydrilla verticillata)

Observer

cesarcastillo

Date

April 4, 2019 04:21 PM EDT

Photos / Sounds

What

Hydrilla (Hydrilla verticillata)

Observer

rotala

Date

August 28, 2021 08:52 AM EDT

Description

Confirmed ID by looking at leaf node morphology. This is an invasive plant in Florida.

Photos / Sounds

What

Brazilian Waterweed (Egeria densa)

Observer

heikindai_87

Date

June 19, 2015 05:56 PM JST

Photos / Sounds

What

Flowering-Rush (Butomus umbellatus)

Observer

andreakingsley

Date

June 24, 2021 04:09 PM EDT

Photos / Sounds

What

Eurasian Water-Milfoil (Myriophyllum spicatum)

Observer

malisaspring

Date

June 5, 2021 01:26 PM EDT

Photos / Sounds

What

Curly-leaf Pondweed (Potamogeton crispus)

Observer

tanner111

Date

October 16, 2021 04:24 PM PDT

Photos / Sounds

What

Horned Bladderwort (Utricularia cornuta)

Observer

wetlandfan

Date

June 2021

Place

Ohio, US (Google, OSM)

Photos / Sounds

What

Plateau Catchfly (Silene petersonii)

Observer

mjwarman

Date

October 2021

Photos / Sounds

What

Purple Loosestrife (Lythrum salicaria)

Observer

kingmush

Date

August 8, 2021 06:29 AM EDT

Photos / Sounds

What

Hydrilla (Hydrilla verticillata)

Observer

smalltown_huang

Date

September 20, 2021 09:43 AM CST

Photos / Sounds

What

Hydrilla (Hydrilla verticillata)

Observer

smalltown_huang

Date

September 21, 2021 09:32 AM CST

Photos / Sounds

What

Milfoils (Genus Myriophyllum)

Observer

malisaspring

Date

August 2021

Place

Ohio, US (Google, OSM)

Description

???

Photos / Sounds

What

Broadleaf Water-Milfoil (Myriophyllum heterophyllum)

Observer

malisaspring

Date

August 2021

Place

Ohio, US (Google, OSM)

Photos / Sounds

What

Water Fringe (Nymphoides peltata)

Observer

nathanharms

Date

August 9, 2021 08:55 AM UTC

Photos / Sounds

What

Hydrilla (Hydrilla verticillata)

Observer

treadwal

Date

August 4, 2021 06:51 PM EDT

Description

Monoecious bio type

Photos / Sounds

What

Hydrilla (Hydrilla verticillata)

Observer

treadwal

Date

August 4, 2021 06:51 PM EDT

Description

Dioecious bio type

Photos / Sounds

What

Fries' Pondweed (Potamogeton friesii)

Observer

sandeno

Date

July 27, 2021 08:09 AM UTC

Photos / Sounds

What

Red Duckweed (Lemna turionifera)

Observer

rroutledge

Date

June 19, 2021 10:32 AM EDT

Description

dorsal mid-line row of papules

Photos / Sounds

What

Brittle Naiad (Najas minor)

Date

October 8, 2020 11:38 AM CDT

Photos / Sounds

What

Robbins' Pondweed (Potamogeton robbinsii)

Observer

stacie3

Date

June 17, 2021 03:58 PM EDT

Photos / Sounds

What

Didymo (Didymosphenia geminata)

Observer

rogue_biologist

Date

March 26, 2021 03:18 PM EDT

Description

Maybe?

Photos / Sounds

What

Freeman's Maple (Acer × freemanii)

Observer

mjwarman

Date

May 3, 2021 02:26 PM EDT

Photos / Sounds

What

European Frog-Bit (Hydrocharis morsus-ranae)

Observer

imbeaul

Date

August 7, 2020 10:13 PM EDT

Photos / Sounds

Observer

malisaspring

Date

March 2021

Place

Ohio, US (Google, OSM)

Photos / Sounds

What

Seedbox (Ludwigia alternifolia)

Observer

martycalabrese

Date

November 7, 2020 11:49 AM EST

Photos / Sounds

What

Water Fringe (Nymphoides peltata)

Observer

ana31

Date

August 12, 2016 06:05 PM EDT

Photos / Sounds

What

Dotted Watermeal (Wolffia borealis)

Observer

malisaspring

Date

September 7, 2020 03:52 PM EDT

Photos / Sounds

What

Water Fringe (Nymphoides peltata)

Observer

mmnat

Date

August 30, 2020 04:38 PM EDT

Photos / Sounds

What

Flowering-Rush (Butomus umbellatus)

Observer

katulka

Date

August 27, 2020 02:26 PM EDT

Photos / Sounds

What

Hydrilla (Hydrilla verticillata)

Observer

rogue_biologist

Date

August 10, 2020 04:08 PM EDT

Description

I think?

Photos / Sounds

What

Purple Loosestrife (Lythrum salicaria)

Observer

helado

Date

August 9, 2020 07:37 AM EDT

Photos / Sounds

What

Spiral Pondweed (Potamogeton spirillus)

Observer

dperleberg

Date

August 6, 2020 02:47 PM CDT

Photos / Sounds

What

Water Fringe (Nymphoides peltata)

Observer

nathanharms

Date

August 19, 2019 10:29 AM UTC

Photos / Sounds

What

Reed Canary Grass (Phalaris arundinacea)

Observer

rcurtis

Date

June 15, 2020 06:02 PM EDT

Photos / Sounds

What

European Frog-Bit (Hydrocharis morsus-ranae)

Observer

lukearmstrong

Date

August 16, 2014 04:06 PM EDT

Photos / Sounds

What

Yellow Iris (Iris pseudacorus)

Observer

jennifty

Date

May 28, 2020 09:24 AM EDT

Photos / Sounds

What

Common Reed (Phragmites australis)

Observer

cladonia_chris

Date

April 2020

Place

Ohio, US (Google, OSM)

Description

P. australis dominated wetland caught fire on 4/11/20. Roughly 5.4 acre area burnt.

Photos / Sounds

What

Brazilian Waterweed (Egeria densa)

Observer

jacob216

Date

September 12, 2018 01:42 PM EDT

Photos / Sounds

What

Water Fringe (Nymphoides peltata)

Observer

keesling3

Date

August 24, 2019 10:15 AM EDT

Photos / Sounds

What

Water Starworts (Genus Callitriche)

Observer

rachelnypaver

Date

July 8, 2019 11:19 AM EDT

Photos / Sounds

What

American Eelgrass (Vallisneria americana)

Observer

rachelnypaver

Date

August 7, 2019 09:28 AM EDT

Photos / Sounds

What

Diverse-leaved Pondweed (Potamogeton diversifolius)

Observer

rachelnypaver

Date

August 8, 2019 08:54 AM EDT

Description

Stipules adnate to leaf 30-50% of length. Floating LF 20mm wide w/ 7 veins. Largest submersed leaves 0.9-1mm wide. Lacunar band present. Fruits not fully mature but show flattened beak and dorsal keel with points. This species was found regularly dispersed throughout the shallow margins of the lake.

Photos / Sounds

What

Helicopter Ferns (Genus Marsilea)

Observer

clynbrown1

Date

June 3, 2016 02:07 PM EDT

Photos / Sounds

What

White-stemmed Pondweed (Potamogeton praelongus)

Observer

silkeoldorff

Date

July 17, 2014 01:16 PM CEST

Photos / Sounds

What

Lion's-mane Mushroom (Hericium erinaceus)

Observer

rford1213

Date

November 29, 2018 12:54 PM EST

Photos / Sounds

What

Eastern Cauliflower Mushroom (Sparassis spathulata)

Observer

j_philipps

Date

August 8, 2018 07:46 AM EDT

Description

On Acer saccharinum

Photos / Sounds

What

Water Net (Hydrodictyon reticulatum)

Observer

martycalabrese

Date

July 7, 2016 03:52 PM EDT

Description

River water shallow and hot (up to 27 C in full sun)...
Large, thick, soft-appearing bright green mats...
Lack of consistent rain over several preceding weeks...