Acer campestre L. (syn. Acer campestre subsp. leiocarpum (Opiz) Pax)

Posted byTrajche DimitrovskiPosted inUncategorized

Taxonomy: Fam. Sapindaceae// Genus: Acer// Species: Acer campestre  L. The taxonomic classification is given according to The Euro+Med PlantBase (Raab-Straube, 2018+).

Determined according to the botanical keys provided by Matevski in Micevski (2005) as Acer campestre subsp. leiocarpum (Opiz) Pax. In The Euro+Med PlantBase (Raab-Straube, 2018+) this taxon is not accepted at the subspecies rank – it is considered a synonym of A. campestre L.

Species variability: Two subspecies of A. campestre occur in the Osogovo region: Acer campestre L. subsp. campestre and A. campestre subsp. leiocarpum Pax.

Distinction between subspecies:

– A. campestre subsp. campestre: Leaves 5-lobed, fruits glabrous.

– A. campestre subsp. leiocarpum: Leaves 5-lobed, fruits distinctly hairy.

Lifeform:  Tree; phanerophyte (micro- or mesophanerophyte) according to the  Raunkiær system.

Distribution:  Native from Central Europe to Iran according to the distribution information provided by the Plants of the World Online portal (Royal Botanic Gardens, Kew).

Habitat:  Oak forests.

Flowering period: Spring: MAR, APR.

Acer campestre subsp. leiocarpum – habit. Osogovo – village of Shtalkovica, 13.04.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – branch with inflorescence. Osogovo – village of Shtalkovica, 13.04.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – inflorescence. Osogovo – village of Shtalkovica, 13.04.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – flowers. Osogovo – village of Shtalkovica, 13.04.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – flowers and developing fruits. Osogovo – village of Shtalkovica, 13.04.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – flowers and developing fruits. Osogovo – village of Shtalkovica, 13.04.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – flowers and developing fruits. Osogovo – village of Shtalkovica, 13.04.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – leaves. Osogovo – village of Shtalkovica, 13.04.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – leaves. Osogovo – village of Shtalkovica, 13.04.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – branch. Osogovo – village of Shtalkovica, 13.04.2024. Photo by Trajche Dimitrovski.

Acer campestre subsp. leiocarpum – habit. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – habit. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – branches. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – branches. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – branch with fruits. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – fruits. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – fruits. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – fruits. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – fruits. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – fruit (samaras). The fruits are distinctly hairy. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – fruits. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – fruits. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – twigs. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – leaves. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – leaves. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – leaves. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – leaves. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski..
Acer campestre subsp. leiocarpum – leaf. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – adaxial side of leaf. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – abaxial side of leaf. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – leaf petiole and stem of twig. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – branch. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.
Acer campestre subsp. leiocarpum – branch. Osogovo – village of Shtalkovica, 06.05.2024. Photo by Trajche Dimitrovski.

References:

Acer campestre. Raab-Straube, E. von (2018+): Sapindaceae. – In: Euro+Med Plantbase – the information resource for Euro-Mediterranean plant diversity. Published at https://europlusmed.org/cdm_dataportal/taxon/960ff0e5-e8f8-4b8b-952e-974bf6b48cc2 [Accessed 16.05.2024].

Acer campestre subsp. leiocarpum (Opiz) Pax. Plants of the World Online portal, Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77249142-1 [Accessed 16.05.2024].

Acer L. Matevski, V. in Micevski, K. (2005). The Flora of the Republic of Macedonia Vol. I, Book 6. Macedonian Academy of Sciences and Arts, pp. 1450 – 1462.