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Flora
Europaea
perennial, H
mesic calciphyle, upper nemoral
belt
disjunct endemic
(central-southern Apuseni
Mountains / Carpathians south of Iron Gates
area).
The populations concentrate at the
very border between the shaded rock wall vegetation
(Asperulo capitatae-Seslerietum rigidae) and the
beech forests on limestone rocks (Phyllitidi-Fagetum)
from the plateaus of the calcareous 'island' (klippa)
mountains of the central-southern Apuseni (Valcan, Strutu,
Stramba) so being an ecotone species. In some places like
Plotunu massif which is a calcareous 'island' mountain
situated between Stramba and Strutu mountains (which shelter
populations of this species) H. umbellatum is missing
and the places which should be populated by it is inhabited by
H.
hirsutum with which probably H.
umbellatum is syntopic (has a similar ecological niche
and replace one another through competition)
the limit between R4116/R3401 habitats
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A species with a curious range disjunction
which reminds that of Pedicularis limnogena (but which has
a very different habitat - peat bogs) and one of the rarest and most
characteristic plants of the calcareous 'klippa' massifs from the
Apuseni Mountains.
Valcan massif, near Blajeni-Vulcan,
Hunedoara county, July 2005
dr. Alexandru Badarau, alexandru@transsilvanica.com
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