''Prunus costata'' is a species of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

in the family ''

Rosaceae Rosaceae (), the rose family, is a family of flowering plants that includes 4,828 known species in 91 genera. The name is derived from the type genus '' Rosa''. The family includes herbs, shrubs, and trees. Most species are deciduous, but som ...

''. It is native to

New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; , fossilized , also known as Papua or historically ) is the List of islands by area, world's second-largest island, with an area of . Located in Melanesia in the southwestern Pacific Ocean, the island is ...

. It is a tree reaching 25m, and is morphologically very similar to ''Prunus grisea'' var ''grisea'', aside from their seeds. It flowers are borne on a raceme and have white petals only 1-3 mm long, with 20 to 35 stamens each. The numerous stamens are typically 5.5 mm long, giving the flowers a bristly appearance. ''P. costata'' flowers 3 to 4 times per year, and successfully sets fruit after most flowerings. The type specimen was collected on Mt. Scratchley at .

References

costata Flora of New Guinea Plants described in 1965 Taxa named by William Hemsley (botanist) {{prunus-stub