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Automatische Übersetzung:
Blueblossom, blue blossom ceanothus or thyrse-bearing ceanothus, Ceanothus thyrsiflorus. Evergreen shrub native to Oregon and California, collected by Scottish botanist David Douglas. Flowered at the garden of the Horticultural Society. Handcoloured copperplate engraving by George Barclay printed in blue ink after a botanical illustration by Sarah Drake from Edwards Botanical Register, continued by John Lindley, published by James Ridgway, London, 1844.