2018 Zoya Akulova 2015 Zoya Akulova 2017 MCOSD EDRR 2023 MCOSD EDRR 2023 MCOSD EDRR 2020 Jean Pawek 2025 SFV - California State University, Northridge 2025 RSA - California Botanic Garden Herbarium
Casuarina equisetifolia is a tree that is not native to California.
There is a high risk of this plant becoming invasive in California according to Cal-IPC.
[Wikipedia] Native range: Casuarina equisetifolia, common names Coastal She-oak or Horsetail She-oak[1] (sometimes referred to as the Australian pine tree or whistling pine tree outside Australia), is a she-oak species of the genus Casuarina. The native range extends throughout Southeast Asia, Northern Australia and the Pacific Islands; including Thailand, Myanmar, Vietnam, Malaysia, Singapore, Brunei, Indonesia, East Timor, and the Philippines (where it is known as agoho pine),[2] east to Papua New Guinea, French Polynesia, New Caledonia, and Vanuatu, and south to Australia (north of Northern Territory, north and east Queensland, and north-eastern New South Wales).[3] Populations are also found in Madagascar, but it is doubtful if this is within the native range of the species (link added by Mary Ann Machi)
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Suggested Citation
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 07/09/2025).