Alisma plantago-aquatica
Rosettes of greyish green leaves on long stalks. Large wide panicles of white to pink flowers.
Aponogeton distachyos
Aquatic perennial with lance-shaped, green floating leaves, attractive scented white flowers with purplish anthers, above the water.
Azolla filiculoides
A floating aquatic perennial with delicate lacy, light green fronds.
Butomus umbellatus
Rush-like, marginal aquatic perennial with rich green leaves, bronze-purple then dark green as they extend. Umbels of many cup-shaped, fragrant rose-pink flowers held well above the water.
Calla palustris
Aquatic perennial with attractive heart-shaped, glossy, dark green leaves. White spathes surround insignificant flower clusters. Dull red berries follow in autumn.
Caltha palustris
Marginal aquatic perennial with kidney-shaped dark green leaves. Bears waxy, buttercup-like yellow flowers.
Caltha palustris var. alba
Marginal aquatic perennial with kidney-shaped, glossy, dark green leaves. Bears waxy, buttercup-like white flowers.
Caltha palustris var. palustris
Marginal aquatic perennial with rounded, heart-shaped dark green leaves. Bears waxy, buttercup-like yellow flowers.
Caltha palustris var. radicans ‘Flore Pleno’
Marginal aquatic perennial with kidney-shaped dark green leaves. Attractive waxy, double yellow flowers.
Cyperus eragrostis
A loosely tufted perennial with grass-like bright green leaves. Clusters of pale green spikelets.
Cyperus longus
A loosely tufted perennial with grass-like bright green leaves. Clusters of red-brown spikelets, above leafy bracts.
Eriophorum angustifolium
A marginal aquatic with narrow grassy leaves, tufted downy spikelets produced in summer.