RMDGXA4W–Yellow-wort, Blackstonia perfoliata in flower on coastal chalk downland, Lulworth, Dorset.
RFM22550–yellow-wort (Blackstonia perfoliata) with blurred green background
RM2RH968A–Yellow Wort; Blackstonia perfoliata; Flower; UK
RM2A7C1FH–Centaury, Centaurium erythraea, yellow-wort, Blackstonia perfoliata, and autumnal gentian, Gentiana amarella. Handcoloured botanical copperplate engraving by an unknown artist from 'Culpeper's English Family Physician; or Medical Herbal Enlarged, with Several Hundred Additional Plants, Principally from Sir John Hill,' by Joshua Hamilton, London, W. Locke, 1792.
RF2C5ACYB–Yellow-wort'Blackstonia perfoliata', blue grey, hairless annualbright yellow flowers, chalk and limestone grassland and coastal dunes,South west Engla
RF2T0WJE9–The yellow-wort plant (Blackstonia perfoliata) with its yellow flowers.
RMAGDPEN–Yellow-wort Blackstonia perfoliata Whole plants Surrey England July
RM2A7XG6F–Yellow-wort, Blackstonia perfoliata (Yellow centaury, Chlora perfoliata). Handcoloured copperplate engraving after an illustration by Richard Duppa from his The Classes and Orders of the Linnaean System of Botany, Longman, Hurst, London, 1816.
RMTD4183–Perfoliate Yellow Wort (Blackstonia perfoliata), vintage illustration from 1874
RMADWWX4–Yellow Wort Blackstonia perfoliata
RM2A7P2C8–Yellow centaury or yellow-wort, Blackstonia perfoliata. Handcoloured copperplate engraving from a drawing by James Sowerby for Smith's 'English Botany,' London, 1791. Sowerby was a tireless illustrator of natural history books and illustrated books on botany, mycology, conchology and geology.
RMTRAGAX–Yellow wort (Blackstonia perfoliata) Green Down, near Charlton Mackrell Somerset
RMBE9MMT–herfstbitterling; yellow wort
RF2K38HHH–A closeup of Blackstonia perfoliata or yellow-wort.
RMG56YFH–Yellow-wort (Blackstonia perfoliata) unfolding perfoliate leaves, England, May
RFJJ26DA–Blackstonia perfoliata
RMP5RAG7–N/A. English: John Curtis British Entomology (1824-1840) Folio 153 Diptera: Dasypogon brevirostris = Leptarthrus brevirostris (Slender-legged Robber-fly). The plant is Blackstonia perfoliata (Perforated Yellow-wort) . 1836. John Curtis 238 Britishentomologyvolume8Plate153
RF2DHAC3R–Yellow flowers of Blackstonia perfoliata in dry stone terraced meadow.
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