New community of sycamore maple in northwestern Slovenia (Aconito paniculati-Aceretum pseudoplatanii ass. nov.)

Igor Dakskobler

doi:10.3986/hacq-2025-0027

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New community of sycamore maple in northwestern Slovenia (Aconito paniculati-Aceretum pseudoplatanii ass. nov.)

Hacquetia

Volume 25 (2026): Issue 1 (June 2026)

By: Igor Dakskobler

Open Access

|Jun 2026

Abstract

We compared and analyzed a large number of relevés of montane-subalpine maple forests in northwestern and western Slovenia, and classified most of them into the association Lamio orvalae-Aceretum pseudoplatani. Several relevés from the Julian Alps, which we made on debris slopes (talus) and rockfall at elevations between 940 m and 1540 m, stood out and we classified them into the new association Aconito paniculati-Aceretum pseudoplatani (suballiance Lamio orvalae-Acerenion pseudoplatani, alliance Tilio-Acerion). In terms of species composition (but not in terms of its sites), its stands highly resemble the stands of the upper montane-subalpine beech-maple association Aconito paniculati-Fagetum sylvaticae (suballiance Saxifrago rotundifolii-Fagenion sylvaticae, alliance Aremonio-Fagion). The stands of both plant communities may be syndynamically connected. The article also discusses pioneer sycamore maple stands on former fields, pastures or hay meadows in the foothills of the southern Julian Alps and the Trnovo Forest Plateau, which are classified into the (for the time being) provisionally described new association Senecio fuchsii-Aceretum pseudoplatani nom. prov.

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