Evidences Cirsium acaule

Relationships with other species

On the flower 'Cirsium acaule' we could document so far among other things:

Colias crocea
Evidence: C358341

Melanargia galathea
Evidence: F171792

Thymelicus sylvestris
Evidence: F253157

The flower Cirsium acaule we could document in the following habitats, among others:

Alpine pasture (edge of a mountain path)
Region: Valais Alps, Switzerland
Height: 1780m ASL
All photos

Alpine pasture with forest edge
Region: Emmental, Switzerland
Height: 1290 - 1330m ASL
All photos

So far, we have been able to observe and document photographically the species Cirsium acaule at altitudes of 1310m to 1780m above sea level.

We have so far been able to observe and document photographically the species Cirsium acaule between 23. July and 18. October.

So far we have been able to add 5 observations of this species to the database.


Climate	Temperature number T	2.5ii	Lower subalpine and upper montane, large Variation.
	Continentality K	3i	Suboceanic to subcontinental, small variation.
	Light number L	4i	Well lit places, small variation.
Soil	Moisture number F	2i	Moderately dry, small variation.
	Moisture variability W	2	Moisture moderately varying.
	Reaction number R	4i	Neutral to alkaline, small variation.
	Nutrients number N	3i	Medium infertile to medium fertile, small variation.
	Humus number H	3i	Moderate humus content, small variation.
	Aeration D	3i	Moderate aeration, small variation.

Legend:
The exact description of the factors and values can be found in the book «Flora indicativa».

Source: Book «Flora indicativa»

The threat to the species Cirsium acaule is LC: Not endangered.

Source: Red List of Vascular plants, Switzerland , Edition 2016