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| jojoj17. 01. 2016 14:59:03 |
Scopoli's groundsel - Senecio scopolii Hoppe & Hornsch.
You can also encounter the Slovenian synonym: woolly-haired groundsel
In both cases it's definitely the same plant.
The reason why I joined commenting on the »hribi« portal is the incorrect naming of the plant in the picture: http://hr.hribi.net/slika.asp?rastlina=2645 on this portal as Scopoli's groundsel but in reality it's one of the ashy groundsels.
It would be nice if the moderator or the creator of the mentioned photograph corrects the caption from Scopoli's groundsel to ashy groundsel, to stop misleading floristic beginners with wrong identifications. Which of the ashy groundsels it is can't be discerned from the picture. About that later.
Namely, while browsing for data on the wider distribution of this species (Scopoli's groundsel) also outside Slovenia I stumbled on a photo of Scopoli's groundsel which it is not and realized it's published on the »hribi« portal. It doesn't grow in the Alps! That's why foreign northern or western literature doesn't cover it.
Namely Croatian Flora from 1993 doesn't cover it, but we come across the Albanian name Pulith i Skopolit, so it's in Albania. But the species is surely distributed only on the Western Balkans. In Slovenia only on the Karst, which extends also to the Italian side of the border, along Čičarija, on Postojna plateau and on Sabotin.
Short description of the most important characteristics for Scopoli's groundsel
The plant has only one (1) terminal capitulum with tubular disk and outer ligulate florets. Corolla of both is yellow.
Outer involucral bracts are equally long or longer than inner ones and appressed, and densely woolly hairy.
Leaves are entire, soft, ovate to lanceolate with sharpened or blunt tip, densely grey woolly hairy, minutely toothed on the margin. Stem leaves are sessile and with auricles clasping the stem. Basal ones gradually transition to a long petiole.
The whole plant is densely woolly hairy and appears greyish. Height 20-40 cm.
In habit it's somewhat similar only to alpine groundsel, which however is not so hairy and has terminal cymose »inflorescence« with more capitula: 3-5, more rarely up to 7 and very very rarely only with one capitulum. It grows in Julian Alps, Karawanks, Kamnik-Savinja Alps and in Primorska
More about ashy groundsels – genus Tephroseris
They differ from groundsels in that capitula lack outer involucre, and tips of involucral bracts are not blackish to black, but green to orange or violet.
In some (not all) older literature they were placed in genus Senecio
For species identification however the picture of »inflorescence« is not enough, except for orange ashy groundsel Tephroseris aurantiaca (Willd.) Griseb., which has corolla of both florets (ligulate and tubular) orange. But they must have that color in full bloom! Because there often appears incorrect naming as orange ashy groundsel for Obir ashy groundsel, which can sometimes have orange-colored ligulate florets before blooming, after blooming they are yellow. Obir ashy groundsel: Tephroseris longifolia (Jacq.) Griseb.& Schenk subsp. longifolia (accepted) with synonyms in older literature: Tephroseris ovirensis (W. D. J. Koch) B. Nord. and Senecio ovirensis (W. D. J. Koch) DC.
For identification of ashy groundsels however besides shape of inflorescence and capitulum it's necessary to know what basal leaves are like in shape, toothing and hairiness on upper and lower side, which can differ, as well as hairiness of the whole plant.
We certainly welcome argued debate like for example petra2. Unlike unargued »I think«, without any other argument.
jojoj
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