|Burwell||Electronics & DIY||Family History||Hi-Fi History||Misc||Natural History||Wild Food||Walks|
|Aquatic life||Various Botanical photos||Various Fungus photos||Ponds and water life|
Click on a picture for the full sized version
|Nymphoides peltata||Nymphoides peltata||Hydrocharis morsus-ranae|
|Moat at Oxborough Hall||Moat at Oxborough Hall||Royal Military Canal|
|2004 Aug 27||2004 Aug 27||2004 Aug 21|
Pictures 1 and 2 show the moat at Oxborough Hall in Norfolk almost completely covered by Nymphoides peltata - Fringed Water-lily. Picture 2 is a close-up showing the leaves several layers thick and the flowers.
Picture 3 is on the Royal Military Canal near Appledore, in Kent. (Royal Military Canal www site) On first look, you can see the yellow flowers of Nymphoides peltata - Fringed Water-lily but look more carefully and a few white flowers can also be made out: these are Hydrocharis morsus-ranae - Frog Bit and this patch actually contains rather more frog-bit that fringed lily! Both species do so well in the canal that in certain places there are piles of them, mixed with fringed lily and other water plants, where the canal has been cleared.
Nymphoides peltata is a British native and grown in ponds and slow rivers in east and central England, from Sussex and Kent, through Berkshire, E. Gloucester, Shropshire, S York and the Cambridge fens (I quote from Clapham, Tutin and Warburg). It is an excellent pond plant and is suitable for small ponds as it has leaves smaller than any true water-lily. It is also very suitable for (cold water) aquaria, but (like most cold-water plants) needs quite a strong light for good growth.
Hydrocharis morsus-ranae is a British native and grown in ponds and ditches, usually in hard water. It's scattered throughout England from Devon and Kent to S. Lancashire and Durham, parts of Wales Generally local and probably diminishing (say Clapham, Tutin and Warburg in 1952). It is now on the red-list of nationally endangered plants, so should be encouraged in garden ponds.
So it is not a common plant. It is said to be a plant of the Norfolk Broads: indeed in April 2006 I did see one newly risen plans in Cockshoot Dyke - which feeds Cockshoot broad, one of the Broads which is now restricted to boats and which is being cleaned up as a wildlife habit.
Frog Bit over-winters by means of turions, or winter buds, which fall to the bottom to over-winter. The plant starts producing these in late August or early September. When water temperatures start to rise in late April or early May, light penetrating to the bottom starts growth and the young plant rises to the surface. It follows from this that the plant needs clean water) or not enough light will penetrate to start re-growth) and also that it does best in relatively shallow water: the earliest spring plants to appear to be those that are in the shallowest water! The plant is. it seems. only on the surface for 4 to 5 months of the year!
You can also see a tadpole or two, and (top left) some ivy-leaf duckweed. At bottom is a frond of spiked water-milfoil.
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