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Erigeron glabratus
Variable Fleabane
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Photographer: Dr. Amadej Trnkoczy
ID: 0000 0000 0820 0178 (2020-08-03)Copyright © 2020 Dr. Amadej Trnkoczy
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INFORMATION PROVIDED WITH THE PHOTO
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date of photo Aug 1, 2019
latitude 46.35758 longitude 13.70357
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location
Lower Trenta valley, between villages Soča and Trenta, right bank of river Soča; above Soča trail in Matevž's gorge, upstream of the farmhouse Matevž, Trenta 1; East Julian Alps (Posočje, Slovenia)notes Slo.: mnogolična suholetnica - syn.: Erigeron alpinus subsp. glabratus (Bluff & Fingerh.) Briq., Erigeron uniflorus subsp. glabratus (Bluff & Fingerh.) Ces., Erigeron alpinus subsp. polymorphus Wilczek & Schinz, Erigeron polymorphus subsp. graecus Vierh. - Habitat: moderately steep mountain slope, southeast aspect; above river bead; calcareous, colluvial, skeletal ground; semi dry, sunny, open place; high air humidity; elevation 540 m (1.770 feet); average precipitations ~ 3.000 mm/year, average temperature 6-8 deg C, alpine phytogeographical region. - Substratum: sandy soil. - Comment: Erigeron glabratus is a South European montane species growing in (almost) the whole Alps, Pyreneans, Apennines and Carpathians. It is usually found at subalpine and alpine elevations. This find at 540 m elevation is unusually low. The species is a very variable plant. Its Latin synonym name Erigeron polymorphus, as well as Slovenian, German and English vernacular names confirm this fact. Sometimes it is not easy to separate it from quite similar Erigeron uniflorus and Erigeron alpinus. The plants found and shown here have (alas not all of them) more than one flower head on each stalk (hence not 'uniflorus') and lack two different types of tubular florets in the heads (the most characteristic trait of Erigeron alpinus). However, ligule (flattened part of the ray corolla) are white. This happens only seldom (Ref.: 1). Usually they are light purple-pink, light wine-red or light violet. - Ref.: (1) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora für Österreich, Liechtenstein und Südtirol, LO Landesmuseen, Linz, Austria (2005), p 881. (2) A. Martinči et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnična Založba Slovenije (2007), p 647. (3) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 2., Haupt (2004), p 440.camera Nikon D700 / Nikkor Micro 105mm/f2.8
contributor's ID # Bot_1236/2019_DSC09601 photo category: Plant - annual/perennial
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MORE INFORMATION ABOUT THIS PLANT
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Variable Fleabane (photographer)
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For other uses, or if you have questions, contact Dr. Amadej Trnkoczy amadej.trnkoczy[AT]siol.net. (Replace the [AT] with the @ symbol before sending an email.) |
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