About Xanthorrhoea macronema F.Muell. ex Benth.
Xanthorrhoea macronema, commonly called the bottlebrush grass tree, is a forest species in the Xanthorrhoea genus. It grows in coastal areas of eastern Australia, ranging from north of Sydney, New South Wales to Fraser Island, Queensland. This grass tree has an underground trunk. It produces yellow flowers that resemble flowers of Banksia or bottlebrush; the flower cluster measures around 10 cm long. The flowering stem itself can reach up to two metres in length, with an average width of 10 mm. Flowering occurs between July and August, and this timing depends on fire events. Its glossy leaves are 2 to 4 mm wide, triangular in cross-section, and have grooves and ribs. The leaf margins are rough to the touch, similar to sandpaper. The specific epithet macronema comes from Latin words meaning "long thread", chosen in reference to the plant's long flowering stem.