Plants

Water Violet (Hottonia palustris)

waterviolet
An aquatic relative of the Primrose, grows in still or slow moving shallow water, spreads by stems rooting to form large patches. The Conduit is notable for its population of Water Violet.
Attribution: Olivier Pichard.

Great Hairy Willowherb (Epilobium hirsutum)

willowherb

Grows in dense patches on the Conduit’s banks, spreading by rhizomes but spreads further afield by wind-borne seeds.
Attribution: Jon Peli Oleaga Olabarria.

Purple Loosestrife (Lythrum salicaria)

purpleloosestrife
This grows on the banks of the Conduit. It produces large amounts of seed and spreads rapidly; it was introduced into N America where it has become an invasive weed.
Attribution: GartenAkademie.

Yellow Loosestrife (Lysimachia vulgaris)

yellowloosestrife
Another Primrose relative, its flowers produce oil rather than nectar.
Attribution: Wild Boar.

Pendulous Sedge (Carex pendula)

carexpendula
This forms dense tussocks on the bank; a plant of damp woodland it can cope with shade. The flowers are in separate male and female dangly spikes.
Attribution: Cillas.

Yellow Flag (Iris pseudacorus)

yellowflag
A yellow flowered bumble-bee pollinated wetland Iris. The leaves are toxic so live stock tend not to eat it.
Attribution: Jörg Hempel.

Common Reed (Phragmites australis)

phragmites
Common Reed grows both on the Conduit bank and in the water. This is the reed used in thatching.
Attribution: Jeff Delonge.

Water Starwort (Callitriche sp)

callitriche
Water Starwort roots in the mud of the Conduit, its shoots forming floating starry rosettes. There are a number of species which are difficult to tell apart.
Attribution: Jan Prančl.

Gypsywort (Lycopus europaeus)

gypsywort
Gypsywort grows by the conduit low down near the water.
Attribution: H Zell.

Bringing fresh water into the city of Cambridge since 1614