Habitat: Ponds

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Showing 1-25 of 42 records

Marsh Bedstraw

Flower: Small, white flowers. Up to 4mm in diameter. Fruit: Small, globular fruit, slightly wrinkled. Leaves: Rough-margined leaves, in whorls of 4 to 6. Stems are without prickles. The similar-looking Fen Bedstraw (Galium oliginosum) does not have prickles on the stems. Perennial which sometimes grows in wat...

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Bogbean

Flower: The flowers of Bogbean are distinctive and star-shaped. They are held above the water inside dense, erect flower spikes. The flowers have white fringed petals and are covered in conspicuous white hair... Fruit: The fruit is a spherical, many-seeded capsule. Leaves: An aquatic perennial plant with leaves projecting to 30cm above the surface of the water in which it floats. Large trefoil leaves with broadly oval leaflets, similar in appearance to those of Broad Be...

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Brooklime

Flower: Small deep blue flowers emerging in pairs from leaf axils, 4 petals. Fruit: A nearly spherical brown capsule, splitting open when mature. Up to 4mm in diameter. Leaves: Shiny and leathery, succulent leaves that are round to oval and have bluntly toothed margins. Their stems are often tinted reddish-brown.

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Common Bulrush

Flower: Tiny and densely packed, forming a chocolate-coloured sausage-shaped spike. Fruit: Fruits are minute. They are produced from the female flowers and are covered in fluffy down. Leaves: Stalkless, long-sheathed, alternate leaves which are mainly produced at the bottom of the stem. Pale blue-green and linear.

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Unbranched Bur-reed

Flower: Similar to Branched Bur-reed (Sparganium erectum) but with far fewer flowerheads. However, the main difference is that the flowerheads are unbranched. Unbranched Bur-reed is also a shorter plant than ... Fruit: Spherical burr-like, spiky. The fruits are with slender beaks. Leaves: Floating stems (up to 2 metres long) often producing parallel lines in rivers and streams. Some leaves are erect, emerging out of the water. Perennial.

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Common Water Crowfoot

Flower: Solitary flower with 5 white petals, up to 2cm. Fruit: Roundish-oval seed head located in the centre of the flower. Leaves: Leaves are either floating, submerged, or both. The floating leaves are deep-lobed, kidney-shaped and 3-lobed with the side lobes being wider than the central lobe. The submerged leaves are thread-lik...

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Common Duckweed

Flower: Petalless and minute, rarely appearing. Fruit: Small and insignificant. Slightly winged and bladder-like in shape. Leaves: Pale, flat and oval leaves which float on the surface of still water. Each plant has 2 leaves and a single root. The leaves are called 'fronds'. Spreads very quickly, covering the whole surface of the...

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Least Duckweed

Flower: Insignificant. The flowers consist of 2 stamens and a style. Fruit: Insignificant and minute. Leaves: Duckweed is invasive and mat-forming. It carpets the surface of the water so thick that it can completely block out the light below. The leaves are elliptical, dull green and slightly ridged. The leav...

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Water Forget-me-not

Flower: Clustered, pink flower buds, later becoming sky blue. 5 petals with yellow and white centres. Fruit: Small, 4-parted, egg-shaped, shiny black nutlets. Up to 2mm long. Leaves: Alternate, toothless leaves with pointed tips. The lowest leaves are the broadest and the upper leaves are more linear. The leaves are covered in short appressed hairs.

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Frogbit

Flower: Each flower has 3 white petals with a yellow basal spot. The flowers are solitary and measure 2 or 3cm across. Fruit: The fruit is globular and berry-like. Leaves: A floating aquatic perennial believed by the ancient Greeks to have been eaten by frogs. The leaves are round or kidney-shaped, 3cm in diameter. Grows in still, fresh water.

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Rigid Hornwort

Flower: The minute, green flowers have 8 or more petals. It is a shy-flowerer. Male flowers are whitish and females are green. Pollinated by water. Fruit: Smooth and warty, beaked fruit. The fruit has 2 spines at the base. The similar looking Soft Hornwort (Ceratophyllum demersum) does not have these spines. Leaves: The feathery leaves are compact and thread-like, growing in whorls of 5 to 14. They fork off from the main stem 1 or 2 times. The jointed stems have a reddish tinge to them. Perennial.

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Water Horsetail

Flower: Flowerless. Horsetails reproduce by spores. Fruit: Ovoid cones sit on top of the fertile main stems. The cones are technically known as 'strobili' and reach a maximum of 1.5 cm in length. Leaves: The green furrowed stems have 10 to 30 very shallow grooves. Whorls of leaf-like branches appear along the erect single main stem.

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Yellow Flag Iris

Flower: Large, showy and eye-catching. Bright yellow with 3 spreading outer petals and 3 inner petals twisting inwards, up to 10cm. Fruit: A 3-angled capsule, or seed pod, packed tight with numerous seeds, splitting open later in the year. Up to 8cm long. Leaves: Long, linear, sword-like leaves which emerge out from the ground. Grows in water or on wet ground in compact clumps.

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Arum Lily

Flower: Large and showy. White funnel-shaped tubular flower with a slit down one side. Yellow or orange spike called a spadix sits in the centre of the outer white sheath. Fruit: An oval, orange berry-like fruit, up to 1cm across. Leaves: Large, green, broadly oval, glossy leaves.

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Purple Loosestrife

Flower: Bright purple flower spikes in whorls up the stem, 6 petals. Fruit: The fruit capsules are enclosed within the sepals and consist of many reddish tiny seeds. Leaves: The leaves can be either opposite or in whorls of 3, and are sometimes slightly hairy. They are stalkless, long and slender, and are either heart-shaped or rounded at the base of their leaves.

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Common Marestail

Flower: The inconspicuous flowers of Marestail are minute and petalless. They are pink and form at the bases of the leaves. Fruit: A tiny, ovoid, green nut. Each nut contains 1 seed. Leaves: An unbranched, erect perennial waterweed which grows in still or slow flowing water. Most of the plant is submerged beneath the water. The strap-shaped leaves are in whorls of 6 to 12. Marestail has b...

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Lesser Marshwort

Flower: Minute white flowers which appear above the water in small, tight but few-flowered clusters (umbels). Flowers have no lower bracts. Fruit: The fruit is a well-ridged, elliptic to oval capsule, up to 3mm in length. Leaves: A perennial sprawling or creeping plant with submerged, thread-like leaves divided into segments (2-pinnate) and upper leaves with narrow leaflets (1-pinnate). The upper leaves have broader segments t...

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Water Mint

Flower: Lilac with hairy sepals and stalks. Flowers in a round head at the top of the stem, often with extra flowers in whorls at the bases of the upper leaves. Fruit: A 4-parted, yellowish-brown seed (schizocarp). Leaves: The stalked leaves are in opposite pairs. The leaf veins are prominent and the margins are toothed. This plant is said to repel flies.

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Floating Pennywort

Flower: Tiny, pale green-white, 5 petals, in umbels. Not often seen in flower. Fruit: Elliptical or round fruit, up to 3mm long. Flattened and lightly ribbed, divided into two halves. Leaves: Rounded kidney-shaped leaves, growing compactly together and densely covering the water upon which it floats. Leaf margins are smooth or scalloped with 3 to 7 lobes.

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New Zealand Pigmyweed

Flower: Small, white-to-pinkish, 4 petals that are longer than the sepals. Flowers are absent on submerged plants. Flowers have stalks arising from the base of the leaves. Fruit: 2 to 5 elliptical, glabrous seeds (follicles). Up to 5mm in length. Leaves: The succulent leaves are arranged in opposite pairs along the stem. They are linear, stalkless and reach a maximum length of 2.5cm.

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Broad-leaved Pondweed

Flower: Green flower spikes on long stalks. Fruit: A spathe, up to 8cm long. The spathe is densely packed with the fruit. Leaves: The broad, oval, opaque and leathery floating leaves are variably green in colour. They have pale veins which run parallel to the midrib from their bases to the leaf tips. The leaves have stipules and...

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Fennel Pondweed

Flower: Compact flower spikes, usually submerged although occasionally are aerial. Water pollinated, inconspicuous flowers. Fruit: Yellowish-brown fruit. About 3 to 5mm long and 2 to 4mm wide. The seeds float on the surface of the water. Leaves: A fully submerged aquatic plant with rounded, leathery, bootlace-type leaves. Up to 4mm in diameter. Dark green, pointed, linear leaves with white-edged stipules. Perennial.

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Common Reed

Flower: Purple spikelets composed of 1-6 flowers each. Fruit: Numerous light brown seeds are produced in compact clusters on the flowering plumes. Leaves: Very long leaves for a grass. The leaf blades can be up to 3cm wide.

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Compact Rush

Flower: Tight clusters of tiny dark brown flowers, one cluster per stem near to the top. Fruit: A capsule which contains at least 3 seeds. Leaves: Tussock-forming and overwintering. Very linear, wire-like leaves. Hollow, green, erect leaves, all of which are borne at ground level.

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Hard Rush

Flower: Tight clusters of tiny brown flowers, one cluster per stem near to the top. Fruit: A capsule, containing at least 3 seeds. Leaves: Flat, long and wiry, tubular leaves. The leaves are thinner and tougher than the other rush species. The leaves are also more bluish-grey.

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