Casuarina cunninghamiana
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Casuarina cunninghamiana, commonly known as river oak, river sheoak or creek oak, is a species of flowering plant in the family Casuarinaceae and is native to Australia and New Guinea. It is a tree wi
Casuarina cunninghamiana tree
Male flowers of subsp. cunninghamiana
Immature female cones
Whorl (botany)
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In botany, a whorl or verticil is a whorled arrangement of leaves, sepals, petals, stamens, or carpels that radiate from a single point and surround or wrap around the stem or stalk. A leaf whorl cons
Casuarina cunninghamiana
…and is native to Australia and New Guinea. It is a tree with fissured and scaly bark, sometimes drooping branchlets, the leaves reduced to scales in whorls of 6 to 10, the fruit 7–14 mm (0.28–0.55 in) long containing winged seeds (samaras) 3–4 mm (0.12–0.16 in) long. Casuarina cunninghamiana is a dioecious…
Photograph and axial plane floral diagram of Friesodielsia desmoides, showing the whorled pattern of multiple concentric objects.
Leaf whorls on a herbaceous Lilium michiganense
Leaf whorls on a woody tree, Brabejum stellatifolium