Water Garden Plants

Question 1

Give the proper name for plants’ adaptations to watery conditions.

Answer 1

Hydrophytic adaptations.

Question 2

How do leaves adapt to cope with being submerged? (2 answers)

Answer 2

They adapt to photosynthesise in low light

They are finely divided to increase surface area

Question 3

How do floating leaves arrange their stomata

Answer 3

On the upper surface to avoid being drowned

Question 4

How could plants which can’t root adapt themselves?

Answer 4

Become a free floater - these don’t need to root.

Question 5

Seeds of water plants have what important characteristic for survival?

Answer 5

High reserves of energy so that emerging plants make it to the surface.

Question 6

What are the 3 main types of water plant?

Answer 6

Oxygenators, Deep Water Aquatics and Free Floaters.

Question 7

For which elements do oxygenators compete with algae?

Answer 7

Minerals and CO2

Question 8

Give 2 examples of oxygenating plants.

Answer 8

Ceratophyllum demersum (hornwort)

Myriophyllum spicatum (milfoil)

Question 9

Give 2 examples of the advantages and needs of deep water aquatics.

Answer 9

Depth of water 30-90 cm
Decorative
Give shade providing shelter for fish and frogs, reducing algae

Question 10

Give 2 examples of deep-water aquatics.

Answer 10

Nymphaea spp.

Nymphoides peltata (water fringe)

Question 11

Give 2 examples of free floaters.

Answer 11

Hydrocharis morsus ranea (frogbit)

Trapa natans (water chestnut)

Question 12

Which 2 types of plant could be considered shallow aquatics?

Answer 12

Marginals, bog plants

Question 13

Give 2 examples of marginal plants.

Answer 13

Caltha palustris (marsh marigold)

Iris laevigata (water iris)

Zantedeschia aethiopica (arum lily)

Question 14

Give 2 examples of bog plants.

Answer 14

Gunnera manicata

Ligularia dentata

Mimulus cupreus (monkey flower)