Tanaecium

{{Short description|Genus of flowering plants}}

{{For|the butterfly genus|Tanaecia}}

{{Automatic taxobox

|image = Paragonia pyramidata (18030425993).jpg

|image_caption = Tanaecium pyramidatum

|taxon = Tanaecium

|authority = Sw.

|subdivision_ranks = Species

|subdivision_ref = {{citation|url=http://www.theplantlist.org/1.1/browse/A/Bignoniaceae/Tanaecium/|title=Tanaecium - Theplantlist|accessdate=29 March 2019}}

|subdivision = See text

|synonyms =

• Ceratophytum Pittier
• Hilariophyton Pichon
• Paragonia Bureau
• Periarrabidaea A.Samp.
• Pseudocatalpa A.H.Gentry
• Sanhilaria Baill.
• Spathicalyx J.C.Gomes

|synonyms_ref = {{citation |url=http://apps.kew.org/wcsp/synonomy.do?name_id=318508 |title=World Checklist of Selected Plant Families |accessdate=15 November 2016}}

}}

Tanaecium is a genus of flowering plants in the family Bignoniaceae, native to south and Central America.{{citation |url=http://www.mobot.org/MOBOT/research/ven-guayana/bignoniaceae/tanaeciu.html |title=Flora of the Venezuelan Guayana |accessdate=15 November 2016}}