closeup view of casuarina equisetifolia, commonly known as coastal she-oak, horsetail she-oak, ironwood, beach sheoak, beach

casuarina equisetifolia coastal sheoak ironwood horsetail beach whistling tree monoecious australian pine background nature leaf forest garden green plant park environment natural outdoor indonesia closeup tropical evergreen oak branch beefwood sea foliage coniferous needle leaves spruce cone seed conifer ornamental textile dye samara spike spine