Pictorial guide to the flora of the British Isles

Home ⟩ Pictorial Guide ⟩ Rosaceae ⟩ Rosa squarrosa / glandular dog-rose

Rosa squarrosa (A. Rau) Boreau

glandular dog-rose (Rosaceae)

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Plant Atlas 2020
BSBI Distribution Map

Rosa squarrosa is a species of dog rose that is probably found across the British Isles, although its distribution is not yet fully established.

Bibury (VC33: East Gloucestershire); 2020-05-02

 glandular dog-rose / Rosa squarrosa: _Rosa squarrosa_ is a species of dog rose that is probably found across the British Isles, although its distribution is not yet fully established.

Rosa squarrosa differs from Rosa canina s.s. in that its leaves are biserrate or multiserrate, with glands on the tips of the teeth.

Barrington (VC33: East Gloucestershire); 2020-06-23

 glandular dog-rose / Rosa squarrosa: _Rosa squarrosa_ differs from _Rosa canina_ s.s. in that its leaves are biserrate or multiserrate, with glands on the tips of the teeth.

As in Rosa canina s.s., the sepals are pinnately lobed, soon becoming reflexed, and generally falling off by the time the fruit is ripe.

Barrington (VC33: East Gloucestershire); 2020-06-23

 glandular dog-rose / Rosa squarrosa: As in _Rosa canina_ s.s., the sepals are pinnately lobed, soon becoming reflexed, and generally falling off by the time the fruit is ripe.

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