Cryptocoryne usteriana

{{Short description|Species of aquatic plant}}

{{Speciesbox

|name = Usteri's water trumpet

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|status = NT

|status_system = IUCN2.3

|genus = Cryptocoryne

|species = usteriana

|authority = Engl. (1905){{IPNI|id=86744-1|accessdate=31 August 2018}}

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Cryptocoryne usteriana is a species of aquatic herb in the family Araceae endemic to the Philippines.{{cite web|url=http://apps.kew.org/wcsp/namedetail.do?name_id=52063 |title=World Checklist of Selected Plant Families |publisher=Royal Botanic Gardens, Kew |accessdate=2018-08-31}} It was named after the German botanist Alfred Usteri{{cite web |title=Cryptocoryne usteriana, Engler (1905) |url=http://aquaflora.dk/plant-e/besk/cryp-ust.html |website=AquaFlora.dk – your guide to aquatic plants. |publisher=Sven Erik Riedel |accessdate=1 September 2018}} who discovered the plant in the island-province of Guimaras in 1902.{{cite web |title=Usteri, Alfred |url=http://www.nationaalherbarium.nl/FMCollectors/U/UsteriA.htm |website=Cyclopaedia of Malesian Collectors |publisher=P.C. van Welzen |accessdate=31 August 2018 |ref=peter.vanwelzen@naturalis.nl}} The species can also be found in the mainland Panay, in tributaries of lowland bedrock river with not too rapidly flowing water and seasonal flood pools. During the summer, its natural habitat dries up and plants undergo complete meltdown. The following monsoon rain and inundation triggers the remaining rootstock or rhizome to regrow quickly and send blooms underwater. Due to overcollection for the aquarium trade, the local government categorized it as threatened species.{{cite web |title=Updated national list of threatened Philippine plants and their categories |url=http://www.philippineplants.org/dao-2017-11.pdf |website=Co Digital Flora of the Philippines |publisher=Philippine Department of Environment and Natural Resources (DENR) |accessdate=1 September 2018 |archive-date=27 August 2018 |archive-url=https://web.archive.org/web/20180827170155/http://www.philippineplants.org/dao-2017-11.pdf |url-status=dead }}