Casuarinaceae

Gray sheoak

Casuarina glauca Spreng.

Family: Casuarinaceae
Genus: Casuarina

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Gray sheoak (Casuarina glauca) — FlowerPhoto: Peter de Lange, CC0, from iNaturalist

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Common names

By language (5)

Arabic: كزوارينة غلوكية
arz: كازارينا غلوكيه
Chinese: 粗枝木麻黄, 坚木麻黄, 蓝枝木麻黄, 银木麻黄, 长叶木麻黄
English: Gray sheoak, Grey oak, River oak, Swamp oak, Swamp she-oak
Persian: بلوط مرداب

Synonyms

Casuarina obtusa hort. ex Miq.
Casuarina torulosa Miq.

Flowers

In flower: July to October (from 16 flowering iNaturalist observations worldwide)
Flower colour: red (USDA PLANTS Database)

Characteristics

Growth habit: Tree
Lifespan: Perennial
In the US and Canada: Hawaii: introduced, Lower 48 states: introduced, Pacific Basin: introduced

Photos

FlowerPhoto: Peter de Lange, CC0, from iNaturalist
FlowerPhoto: Thomas Mesaglio, CC BY 4.0, from iNaturalist
FlowerPhoto: Jay Horn, CC BY 4.0, from iNaturalist
FlowerPhoto: Jono, CC BY 4.0, from iNaturalist
Photo: Forest & Kim Starr, CC BY 3.0, from Wikimedia Commons
Photo: Martin Rady, CC BY 4.0, from iNaturalist
Photo: John Tann from Sydney, Australia, CC BY 2.0, from Wikimedia Commons
Photo: Martin Rady, CC BY 4.0, from iNaturalist
Photo: John Tann from Sydney, Australia, CC BY 2.0, from Wikimedia Commons
Photo: Peter Crowcroft, CC BY 4.0, from iNaturalist
Photo: John Tann from Sydney, Australia, CC BY 2.0, from Wikimedia Commons
Photo: John Tann from Sydney, Australia, CC BY 2.0, from Wikimedia Commons

More in Casuarina

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.