gained the Royal Horticultural Society's Award of Garden Merit. References Further reading Hay, A., M. Gottschalk & A. Holguín (2012). Huanduj: Brugmansia English text, many diagrams and illustrations. Gottschalk, Monika (2000). Engelstrompeten (German with English translation booklet). BLV Verlagsgesellschaft mbH. Geit, Lars and Birgitta. Änglatrumpeter och spikklubbor Swedish text but photo rich. Small coffee-table book. External links Brugmansia discussion hobbyist group Detailed cultural information Langenbuscher Garten in Remscheid, Germany Brugmansia Vault – Erowid Solanaceae genera Entheogens Deliriants Herbal and fungal hallucinogens Ayahuasca Poisonous plants