Hypocalymma angustifolium, the white myrtle, is a species of shrub in the myrtle family Myrtaceae, endemic to the south west region of Western Australia. The Noongar peoples know the plant as koodgeed or kudjidi. It grows up to 1.5 metres in height and has arching stems with narrow leaves. White or white and deep pink flowers are produced between June and October (early winter to mid spring) in its native range.