Preview (15 questions)
1 Question
il y a 30 secondes
Q.


Coontail

Water poppies 

Moneywort

Blue Flag

2 Question
il y a 30 secondes
Q.


Lotus

Hydrocleys nymphoides

Waterthymes 

Elodea

3 Question
il y a 30 secondes
Q.


Salvinia

Coontail

Fanwort

Pondweed 

4 Question
il y a 30 secondes
Q.


Water hyacinth 

Water lettuce

Cattail

Egeria

5 Question
il y a 30 secondes
Q.


Elodea

Amazon frogbit

Nelumbo lutea 

Corkscrew rush

6 Question
il y a 30 secondes
Q.


Mosaic Flower 

Myriophyllum spicatum

Japanese water iris

Pondweed

7 Question
il y a 30 secondes
Q.


Elodea

Salvinia

Moneywort

Cattail 

8 Question
il y a 30 secondes
Q.


Duckweed

Vallisneria americana 

Water poppies

Blue Flag

9 Question
il y a 30 secondes
Q.


Water lettuce

Nelumbo lutea

Water chestnut 

Egeria

10 Question
il y a 30 secondes
Q.


Corkscrew rush 

Cattail

Salvinia

Mosaic Flower

11 Question
il y a 30 secondes
Q.


Elodea

Blue Flag 

Pondweed

Egeria

12 Question
il y a 30 secondes
Q.


Waterlilies

Duckweed

Amazon Frogbit

Coontail 

13 Question
il y a 30 secondes
Q.


Lotus

Moneywort 

Water chestnut

Waterthymes

14 Question
il y a 30 secondes
Q.


Coontail

Pondweed

Salvinia 

Fanwort

15 Question
il y a 30 secondes
Q.


Japanese water iris 

Blue flag

Mosaic Flower

Lotus