Montanoa hibiscifolia, the tree daisy or Anzac-flower, is a species of flowering plant in the family Asteraceae.[2] It is native to Central America and southern Mexico, and it has been introduced to other locations including South Africa and Australia.[1] An erect tree-like perennial reaching 6m (20ft), it is invasive, capable of forming dense stands.[2][3]
It is an erect, tree-like, perennial shrub that is 2 to 7m (7 to 23ft) tall.[2][3]Leaf arrangement is simple and their form is opposite. They are pinnatifid when young, and palmately lobed during maturity. The leaves are up to 25cm (10in) in length and width, dark green above and paler below, and smoothly hairy on both surfaces, with a pair of lobes at the base of the leaf blade.[4]
Inflorescences
Daisy-like flowers, which appear from late autumn to winter, are approximately 4cm (2in) across. The ray petals or florets are white in color with a yellow disc. The flowers appear abundantly in terminal branched inflorescences. The disc florets are green but turn yellow. Reddish-brown dry fruits appear like old chartaceous flower heads, one-seeded, which do not open to release the seed.[4][5]
Distribution
It is native to Central America (Costa Rica, El Salvador, Guatemala, Honduras and Nicaragua) and southern Mexico, and it has been introduced to other locations including South Africa and Australia.[1]
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Close-up of flower
Infestation in Hawaii
Stem
Gone to seed
Leaf closeup
In a gorge in Hawaii
Flowering profusely in India
