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  • Surface-floating, freshwater perennial that often forms a carpet over the surface of suitable ponds, lakes and canals by late summer, by vegetative division. FLOWERS are minute and seldom present. FRUITS are seldom seen. LEAVES are 5mm across, round and flat with a single dangling root.
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  • Grass Snake Natrix natrix Length 60-90cm Large non-venomous snake. Hibernates October-April. Hunts on land but also active in water, feeding on frogs and fish. Female lays eggs, often in composting piles of vegetation. Adult has slender body, thickest towards middle evenly tapering towards tail. Ground colour on upperparts is olive-green; has occasional dark vertical stripes on flanks and double row of indistinct dark spots down back. Neck has black and yellow crescent-shaped markings on sides, forming incomplete collar. Scales on under surface are whitish with dark chequering. Has backward-curved teeth that retain struggling prey. Eye has round pupil. Juvenile resembles tiny adult with relatively larger head. Hisses if distressed. Locally common in grassland and heathland, usually in vicinity of water.
    107263.jpg
  • Grass Snake Natrix natrix Length 60-90cm Large non-venomous snake. Hibernates October-April. Hunts on land but also active in water, feeding on frogs and fish. Female lays eggs, often in composting piles of vegetation. Adult has slender body, thickest towards middle evenly tapering towards tail. Ground colour on upperparts is olive-green; has occasional dark vertical stripes on flanks and double row of indistinct dark spots down back. Neck has black and yellow crescent-shaped markings on sides, forming incomplete collar. Scales on under surface are whitish with dark chequering. Has backward-curved teeth that retain struggling prey. Eye has round pupil. Juvenile resembles tiny adult with relatively larger head. Hisses if distressed. Locally common in grassland and heathland, usually in vicinity of water.
    144188.jpg
  • Common Frog Rana temporaria Length 6-10cm Widespread amphibian. Adult male has smooth, moist skin. Usually olive-yellow or greyish brown with variable dark blotching and spots. Darker red animals occur in uplands. Eye has yellow iris with dark, oval pupil. Dark mask runs from eye to eardrum. Underparts are greyish white with faint darker marbling. Hind feet have five webbed toes. In breeding season, acquires bluish throat and swollen nuptial pads on innermost digit of front feet, used for gripping female when mating. Adult female is similar but larger with white granulations on the flanks. Juvenile, when newly metamorphosed resembles miniature adult but with large head. Male utters low-pitched croaking calls when courting. Found in a wide range of habitats if still water is present for breeding. Easy to see in early spring when courting.
    144137.jpg
  • Grass Snake Natrix natrix Length 60-90cm Large non-venomous snake. Hibernates October-April. Hunts on land but also active in water, feeding on frogs and fish. Female lays eggs, often in composting piles of vegetation. Adult has slender body, thickest towards middle evenly tapering towards tail. Ground colour on upperparts is olive-green; has occasional dark vertical stripes on flanks and double row of indistinct dark spots down back. Neck has black and yellow crescent-shaped markings on sides, forming incomplete collar. Scales on under surface are whitish with dark chequering. Has backward-curved teeth that retain struggling prey. Eye has round pupil. Juvenile resembles tiny adult with relatively larger head. Hisses if distressed. Locally common in grassland and heathland, usually in vicinity of water.
    144187.jpg
  • GREATER DUCKWEED Spirodella polyrhiza (Lemnaceae) Aquatic. Surface-floating, freshwater perennial that grows in still or slow-flowing waters of canals, ditches and ponds. FLOWERS are minute and seldom seen. FRUITS are seldom seen. LEAVES are up to 10mm across, flat and rounded or ovate with several dangling roots. STATUS-Locally common, mainly in the S.
    131509.jpg
  • GREATER DUCKWEED Spirodella polyrhiza (Lemnaceae) Aquatic. Surface-floating, freshwater perennial that grows in still or slow-flowing waters of canals, ditches and ponds. FLOWERS are minute and seldom seen. FRUITS are seldom seen. LEAVES are up to 10mm across, flat and rounded or ovate with several dangling roots. STATUS-Locally common, mainly in the S.
    131564.jpg
  • FAT DUCKWEED Lemna gibba (Lemnaceae). Aquatic. Floating, freshwater perennial of ponds and ditches. Flowers minute and seldom seen. Fruits seldom seen. Leaves swollen and spongy, 5-6mm across and 5-6mm deep. Status local.
    131531.jpg
  • Least Duckweed Lemna minuta Leaf diameter 1-2mm. Surface-floating, freshwater perennial that often forms a carpet over the surface of suitable ponds, lakes and canals by late summer, by vegetative division. FLOWERS are minute and seldom present. FRUITS are seldom seen.
    144696.jpg
  • Common Duckweed Lemna minor Leaf diameter 2-3mm. Surface-floating, freshwater perennial that often forms a carpet over the surface of suitable ponds, lakes and canals by late summer, by vegetative division. FLOWERS are minute and seldom present. FRUITS are seldom seen.
    144697.jpg
  • IVY-LEAVED DUCKWEED Lemna trisulca (Lemnaceae) Aquatic<br />
Freshwater perennial that floats just below the water’s surface of ponds and slow-flowing streams. FLOWERS are minute and seldom seen. FRUITS are seldom seen. LEAVES are 10-15mm long, translucent and narrowly ovate; linked in chain-like fashion, the terminal leaves in a trio, like miniature ivy leaves. STATUS-Widespread but local.
    130547.jpg
  • FAT DUCKWEED Lemna gibba (Lemnaceae). Aquatic. Floating, freshwater perennial of ponds and ditches. Flowers minute and seldom seen. Fruits seldom seen. Leaves swollen and spongy, 5-6mm across and 5-6mm deep. Status local.
    131510.jpg