Handroanthus incanus

References

1. [1]IUCN Red List of Threatened Species — http://www.iucnredlist.org/ ↩︎A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
2. [2]Bignoniaceae: Part II (Tribe Tecomeae) — Gentry A.H. · The New York Botanical Garden, New York · 1992 · ISBN 0-89327-368-6 ↩︎
3. [3]Encyclopaedia of Herbs and their Uses. — Bown. D. · Dorling Kindersley, London. · 1995 · ISBN 0-7513-020-31 ↩︎A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
4. [4]The Encyclopedia of Medicinal Plants — Chevallier. A. · Dorling Kindersley. London · 1996 · ISBN 9-780751-303148 ↩︎An excellent guide to over 500 of the more well known medicinal herbs from around the world.
5. [5]Tropix 7 — CIRAD · http://tropix.cirad.fr/en ↩︎An on-line guide to the timbers of 245 species of trees.