The Gentian Family
Gentian Family - Gentianaceae
Common Centaury Centaurium erythraeaNative throughout Europe to western and central Asia and north-west Africa. Very similar to Lesser Centaury and hard to tell from it. Best key characters include the presence of a basal rosette of leaves and a gap of 1mm or less between the base of the sepals and the topmost bracts.
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Lesser Centaury Centaurium puchellum
Native throughout much of the temperate and warm temperate Old World. Very similar to Common Centaury and hard to tell from it. Best key characters include the absence of a basal rosette of leaves and a gap of 1m-4mm between the base of the sepals and the topmost bracts.
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Slender Centaury Centaurium tenuiflorum
Native from South-west Europe and the Mediterranean Region eastwards to the Caucasus and Pakistan.
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Yellow Centaury Centaurium maritimum
Native to Macaronesia and the Mediterranean Region.
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Common Yellow-wort Blackstonia perfoliata
Native throughout western and central Europe to the Mediterranean Basin and Middle East. The brilliant yellow, eight-petalled flowers and glaucous, perfoliate leaves are distinctive.
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