Pterolobium

{{short description|Genus in Fabaceae 'redwing'}}

{{Automatic taxobox

|image = Pterolobium hexapetalum, Camp Siege in Talakona forest, AP W IMG 8365.jpg

|image_caption = The camp siege (P. hexapetalum) in India

|display_parents = 2

|taxon = Pterolobium

|authority = R.Br. ex Wight & Arn., (1834), nom. cons.

|type_species = Pterolobium stellatum

|type_species_authority = (Forssk.) Brenan

|synonyms =

• Cantuffa J.F.Gmel. (1791)
• Kantuffa {{small|Bruce (1790)}}
• Quartinia {{small|A.Rich. (1840)}}
• Reichardia Roth (1821), nom. illeg.

|synonyms_ref = [https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:331886-2 Pterolobium R.Br. ex Wight & Arn.] Plants of the World Online. Retrieved 17 September 2023.

|subdivision_ranks = Species

|subdivision = See text

}}

The genus, Pterolobium (from Gr. πτερόν pterón, meaning "wing", and λόβιον lóbion, meaning "pod" or "capsule", alluding to the winged fruit), consists of 10 species of perennial flowering plants in the family Fabaceae, subfamily Caesalpinioideae{{cite journal | author = The Legume Phylogeny Working Group (LPWG) | year = 2017 | title = A new subfamily classification of the Leguminosae based on a taxonomically comprehensive phylogeny | journal = Taxon | volume = 66 | issue = 1 | pages = 44–77 | doi = 10.12705/661.3| doi-access = free | hdl = 10568/90658 | hdl-access = free }} and tribe Caesalpinieae.{{cite journal | vauthors = Gagnon E, Bruneau A, Hughes CE, de Queiroz LP, Lewis GP | year = 2016 | title = A new generic system for the pantropical Caesalpinia group (Leguminosae) | journal = PhytoKeys | issue = 71 | pages = 1–160 | doi = 10.3897/phytokeys.71.9203 | pmid = 28814915 | pmc = 5558824 | doi-access = free }} They are sometimes called redwings{{citation needed|date=February 2018}} and are native to the tropical to subtropical climes of Africa and Asia, including Indonesia and the Philippines. They are large scrambling or climbing shrubs that grow in riverside thickets, on rocky slopes or at forest margins. They bear colourful samara fruit, and have pairs of thorns below the rachis of their bipinnate leaves.