This section is from the book "The Wild Garden", by W. Robinson. Also available from Amazon: William Robinson: The Wild Gardener.
This is an elegant genus, of which few species are known, five being European - found in Italy, Carinthia, Greece, and the centre of Europe - others from Northern Asia. They are among the few umbellates with attractive and distinct flowers, and yet they are rarely seen in gardens. In the wild garden they are quite at home among the Grass and medium-sized herbaceous plants, and partial shade prolongs their quaint beauty. In fact they are far more at home in the thin wood or copse than in the open exposed mixed border.
 
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