Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Acacia obtusifolia is a perennial in subfamily of . Acacia obtusifolia is an upright or spreading perennial tree which grows from 1.5m to 8m in height and it is native to . It is closely related to . Acacia obtusifolia can be distinguished by it having margins which are , it usually blooms later in the year and it has paler flowers than Acacia longifolia. It flowers usually from December through February. Some populations of Acacia obtusifolia can survive winters to -6C and possibly a light snow, however plants from populations in areas that are frost free such as the coastal ranges of Northern NSW are suscpetible to cold and will be killed by frosts lower than -3C. These populations avoid the valley floors and occur mainly on sandstone ridges well above the frost line.