Pictorial guide to the flora of the British Isles

Home ⟩ Pictorial Guide ⟩ Haloragaceae ⟩ Myriophyllum spicatum / spiked water-milfoil

Myriophyllum spicatum L.

spiked water-milfoil (Haloragaceae)

 SpreadBias within British IslesDirection of bias
Very widespreadNegligible tendencySE
Plant Atlas 2020
BSBI Distribution Map

Myriophyllum spicatum is a plant of slow-flowing rivers and streams, mostly calcium-roch, but also extending into slightly brackish waters.

Kennington (VC22: Berkshire); 2014-06-25

 spiked water-milfoil / Myriophyllum spicatum: _Myriophyllum spicatum_ is a plant of slow-flowing rivers and streams, mostly calcium-roch, but also extending into slightly brackish waters.

The leaves of Myriophyllum spicatum are in whorls of 4, and each leaf has 13–38 segments.

Kennington (VC22: Berkshire); 2014-06-25

 spiked water-milfoil / Myriophyllum spicatum: The leaves of _Myriophyllum spicatum_ are in whorls of 4, and each leaf has 13–38 segments.

The reddish flowers of Myriophyllum spicatum are raised above the water’s surface; they are also in whorls of 4.

Dowlaw (VC81: Berwickshire); 2015-08-12

 spiked water-milfoil / Myriophyllum spicatum: The reddish flowers of _Myriophyllum spicatum_ are raised above the water’s surface; they are also in whorls of 4.

All images copyright © Christopher J. Dixon unless otherwise indicated.

L-R: Bidens tripartita, Melilotus officinalis, Mimulus guttatus, Thalictrum flavum, Ranunculus peltatus, Anchusa arvensis, Malva alcea, Lolium perenne