aquatic plants Jonathan Graham Emergent amp aquatic plants Groups of water plants Floating plants typically floating leaves only Submerged plants with simple leaves Submerged plants with divided leaves ID: 628922
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Slide1
Introduction to fenland aquatic plants
Jonathan GrahamSlide2
Emergent & aquatic plantsSlide3
Groups of water plantsFloating plants (typically floating leaves only)
Submerged plants with simple leavesSubmerged plants with divided leavesPondweeds
Arrowhead and similar plantsAquatic bryophytes and algaeSlide4
Groups of water plantsSlide5
Floating plants (typically floating leaves only)Slide6
DuckweedsSlide7
Large Duckweed and Least DuckweedSlide8
Fat Duckweed
Ivy-leaved duckweedSlide9
Yellow Water-lily
White Water-lilySlide10
Fringed Water-lily
Frog-bitSlide11
Water Fern (Azolla)Slide12
Floating Crystalwort
Fringed HeartwortSlide13
Submerged plants with simple leavesSlide14
Elodea species
Canadian pondweed
(first UK record 1836)
Nuttall’s waterweed
(first UK record 1966)Slide15
Water-starworts (Callitriche species
)
Floating rosettes
Single stemsSlide16
Mares-tailSlide17
Submerged plants with divided leavesSlide18
Water-crowfoots (aquatic Ranunculus species
)
White Flowers
Single stemsSlide19
Water-milfoils
Spiked Water-milfoil
Whorled Water-milfoilSlide20
Water-violet
Typical submerged form
Terrestrial FormSlide21
HornwortsSlide22
BladderwortsSlide23
PondweedsPotamogeton
species (broadleaved & grass-leaved pondweeds)
Opposite-leaved pondweedHorned PondweedSlide24
Broad-leaved Pondweeds
Broad-leaved Pondweed
Shining
Pondweed Slide25
Grass-leaved Pondweeds
Hair-like Pondweed
Grass-wrack Pondweed Slide26
Lesser PondweedSlide27
Hair-like PondweedSlide28
Opposite-leaved Pondweed
Single stem
Typical
habitatSlide29
Horned PondweedSlide30
Arrowhead and similar speciesSlide31
Unbranched bur-reed
ArrowheadSlide32
Unbranched bur-reed and Arrowhead Slide33
Water-plantains
Lesser Water-plantainSlide34
Submerged bryophytes and algaeSlide35
Filamentous algaeSlide36
Charophytes (Stoneworts)
Chara vulgaris
Tolypella glomerataSlide37
Greater Water-mossSlide38
Other useful featuresSlide39
TurionsSlide40
Terrestrial formsSlide41
Petal nectar-pits (Water-crowfoots)Slide42
Aquatic plants are useful indicators of the conservation value of drains
Bed geology
Clear water
Not heavily shaded (reed or bushes)Maintained summer water level (crop irrigation)Some regular management (dredging and weed cutting)
Important factors affecting drains of conservation value for plants