ALPINE BISTORT

Persicaria vivipara

Dock & Knotweed Family [Polygonaceae]

month8jun month8june month8jul month8july month8aug

status
statusZnative
flower
flower8white
morph
morph8hemizygo
petals
petalsZ5
type
typeZspiked
stem
stem8round

25th July 2015, a coniferous forest, Aviemore, Scotland Photo: © Tony Drake
Flower spike slender and reminiscent of those of Ladies Tresses. Grows up to 30cm on damp grass and on mountain ledges; lower down and nearer the sea in the far north of Scotland. Stem leaves dark-green and linear-lanceolate, tapering at both ends and usually with in-rolled margins. Has loose papery sheaths around any junctions. Lower flowers become purplish bulbils (fruit) first.


25th July 2015, a coniferous forest, Aviemore, Scotland Photo: © Tony Drake
Has 5-petalled flowers seemingly not fully opening and slightly hooded at the top.


25th July 2015, a coniferous forest, Aviemore, Scotland Photo: © Tony Drake
Stamens protrude from the flower opening, anthers covered in purplish pollen.


25th July 2015, a coniferous forest, Aviemore, Scotland Photo: © Tony Drake
Five stamens protrude from the hemi-zygomorphic flowers which bend over slightly. Anthers without pollen seem to be pale blue.


25th July 2015, a coniferous forest, Aviemore, Scotland Photo: © Tony Drake
Fruits slightly reminiscent of those of Common Gromwell but they lack the papery covering.


25th July 2015, a coniferous forest, Aviemore, Scotland Photo: © Tony Drake
The fruit have a thin onion-skin like papery covering. Fawn-coloured papery sheaths loosely surround the flower stalks. Flower anthers purplish.


Not to be semantically confused with : Alpine Bartsia (Bartsia alpina) [a plant with similar name]

It is native in the UK and being an alpine plant occurs on mountains in damp grassland or ledges; but further north in Scotland lower down the slopes nearer the sea.


  Persicaria vivipara  ⇐ Global Aspect ⇒ Polygonaceae  

Distribution
 family8Dock & Knotweed family8Polygonaceae

 BSBI maps
genus8Persicaria
Persicaria
(Bistorts)

ALPINE BISTORT

Persicaria vivipara

Dock & Knotweed Family [Polygonaceae]