Centaurea
trinervia Steph.
Centaurea trinervia Steph. is a
Pontic xeric - mesoxeric steppe species which ranges from the
steppes north from the Caucasus up to the Prut river at the border
between Moldova and Romania. The Transylvanian populations are
totally isolated from the main range of the species and are the
single ones to be found on the territory of EU. Despite the facts
that they are only a few and quite small the species was not yet
included on any list of prioritary species, national or European.
Below there are the known populations of the
species from Transylvania. All are located in the so called
'Transsylvanian Plain' (actually a hilly area) on the sunny slopes
of the Transsylvanian forest-steppe zone.
However due to the actual situation of
the populations and the habit of the plant we do believe that
this species has populations which cannot be threatened by
over-collections so we will deliver here the real coordinates. Instead
all the populations are actually or potentially heavily threatened
by sheep overgrazing.
Western Transylvanian
Plain
Cluj-Napoca at Fanatele Clujului - 'Coparsae' (viable
and dense but however quite small populations almost all
inside a nature reservation)
Cluj-Napoca on 'Sfantu Gheorghe' Hill and
'Harom Domb' (viable and dense populations)
Viisoara - Hadareni on 'Grindeni' Cliff
(viable and dense populations which are the fragments from a much larger one)
Valea Florilor - Ploscos on 'Gorganu' Hill
(a group of 42 and one of 4 individuals)
Boj Catun - Cojocna on 'Straja Mare' Hill (a
small but very dense group of more than 100 individuals)
Crairat on 'Camarasu / Botorom' Hill (reminiscent
population - 4 individuals remained in very bad conditions)
Crairat on 'Halau' Hill (reminiscent
population - 4 individuals)
Bodrog on a slope above the village
Central Transylvanian
Plain
Balda at 'Capul Fanatelor'
Eastern Transylvanian
Plain
Satu Nou on Covata valley
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