Caption:
Sabadilla, Schoenocaulon officinale. Native to Mexico, found by plant hunter Karl Theodor Hartweg. Spike-flowered asagraea, Asagraea officinalis. Handcoloured copperplate engraving by George Barclay after a botanical illustration by Sarah Drake from Edwards Botanical Register, edited by John Lindley, published by James Ridgway, London, 1839.