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Silky Oaks - Grevillia


Scarlet Silky Oak - Grevillia banksii
Scarlet Silky Oak - Photo: NBI Collection Habit: A tall tree up to 8m
Fire survival: Killed, only seeds survive
Sexual system: Both sexes in each flower
Flowers: All year
Pollinator: Birds
Fruit: Released a few months after flowering
Seed dispersal: Released after a few months ripening.
Seed storage: Dropped onto the soil
Rarity status: Alien Invader
Habitat:  Red sandy soils.  Common in gardens.
Distribution:  An invader in southern KwaZulu-Natal, originally from Australia

Silky Oak - Grevillia robusta
Silky Oak - Photo: Nigel Forshaw Habit: A tall tree up to 35m
Fire survival: Killed, only seeds survive
Sexual system: Both sexes in each flower
Flowers: All year
Pollinator: Birds
Fruit: Released a few months after flowering
Seed dispersal: Released after a few months ripening
Seed storage: Dropped onto the soil
Rarity status: Alien invader
Habitat: Invasive in wooded grasslands and forests, planted as hedgerows, specimen trees and wind breaks
Distribution:
Naturalised in southern Kwa-Zulu Natal and Mpumalanga

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