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Pulmonaria officinalis L. - Boraginaceae - lungwort, Jerusalem sage, Echtes Lungenkraut
Perennial herb, up to 30cm high, native to Europe; leaves ovate-cordate, hispid, mostly white-spotted, long petioled; flowers changing color from red to blue as they mature.
„It is intresting to note that the herb was used against lung diseases in former times, because the spotted leaves resemble diseased lungs („doctrine of signatures“)… It has been suggested that Pulmonaria, like other Boraginaceae (See Borago, Symphytum), may contain potetnially toxic pyrrolizidine alkaloids. In care “ The leaves (Pulmonariae herba) were mainly used in folk medicine as expectorant, sometimes in cases of ailments of the gastrointestinal and urinary tract.
[Medicinal Plants of the World. Ben-Erik Van Wyk and Michael Wink, Pretoria 2004, 261]
Auerswald, B.A., Roßmäßler, E.A., Botanische Unterhaltungen zum Verständniß der heimathlichen Flora, p.38, t.6 (1858)
http://plantgenera.org/species.php?id_species=854403