KOCH'S GENTIAN

Gentiana acaulis

Gentian Family [Gentianaceae]

month8apr month8april month8may month8jun month8june

status
statusZnative
flower
flower8blue
inner
inner8white
inner
inner8green
morph
morph8actino
petals
petalsZ5
type
typeZtrumpet
stem
stem8round
rarity
rarityZrare

20th April 2013, Buckland Hills, Surrey. Photo: © Dawn Nelson
Up to 6cm tall with most of the height being taken up by a trumpet-shaped and upwardly-directly extremely long florescense.


20th April 2013, Buckland Hills, Surrey. Photo: © Dawn Nelson
Flower is deep-blue with five petals. The tips are unusually white here probably due to frost damage. The inside of the tube of the flower has five broad greenish-grey stripes.


20th April 2013, Buckland Hills, Surrey. Photo: © Dawn Nelson
From the outside the petals have fine darker veins and greenish-white markings where the stripes are inside.


20th April 2013, Buckland Hills, Surrey. Photo: © Dawn Nelson
Within the flower the green-grey stripes are covered in un-usual small raised pimples.


20th April 2013, Buckland Hills, Surrey. Photo: © Dawn Nelson
The lower half of the long linearly-tapered flower has darker spots visble from outside (probably due to more 'pimples' inside). The sepal tube is light-green.


20th April 2013, Buckland Hills, Surrey. Photo: © Dawn Nelson
Leaves short and alternate, lanceolate to oblanceolate, clasping the stem.


Uniquely identifiable characteristics

Distinguishing Feature : The extreme length of the single trumpet shaped flower rising almost directly from ground level to about 6cm, a unique feature.

Not to be semantically confused with :  Koch Snowflake [a geometric structure with similar name].

So rare it is omitted from most UK wild flower books. Originally known from the Alps where it avoided growing on chalk soils (a calcifuge - a chalk hater) it was planted in parts of Surrey in 1960 and now grows wild on chalk grassland as a calciphyte (chalk lover)! Only found in one single hectad. So it looks like it has the genes to enable it to swap allegiances between liking or dis-liking soil alkalinity, an adaption which enables it to grow on both types of soil given enough time to 'acclimatise' itself.


  Gentiana acaulis  ⇐ Global Aspect ⇒ Gentianaceae  

Distribution
 family8Gentian family8Gentianaceae

 BSBI maps
genus8Gentiana
Gentiana
(Gentians)

KOCH'S GENTIAN

Gentiana acaulis

Gentian Family [Gentianaceae]