Xylosma pachyphylla

{{Short description|Species of plant}}

{{Speciesbox

|image =

|status = CR

|status_system = IUCN2.3

|status_ref = {{cite iucn |author=World Conservation Monitoring Centre |date=1998 |title=Xylosma pachyphyllum |volume=1998 |page=e.T34032A9832790 |doi=10.2305/IUCN.UK.1998.RLTS.T34032A9832790.en |access-date=15 November 2021}}

|genus = Xylosma

|species = pachyphylla

|authority = (Krug & Urb.) Urb.

|synonyms = Myroxylon pachyphyllum Krug & Urban

|synonyms_ref = {{cite web |url=https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=505774 |title=Xylosma pachyphylla (Krug & Urban) Urban |work=ITIS Standard Reports |publisher=Integrated Taxonomic Information System |access-date=2010-03-04}}

}}

Xylosma pachyphylla, commonly known as spiny logwood, is a species of flowering plant in the family Salicaceae, that is endemic to Puerto Rico. It can be found in forests on the island's western mountains, where it grows in serpentine soils.{{cite book |url=https://books.google.com/books?id=ISlUCW8p5GcC |title=Flora of Puerto Rico and Adjacent Islands: a Systematic Synopsis |first=Alain H. |last=Liogier |author2=Luis F. Martorell |edition=2nd |publisher=La Editorial, UPR |isbn=978-0-8477-0369-2 |year=2000 |page=130}} It is threatened by habitat loss.