Casuarina equisetifolia
Casuarina
Australian-pine, beach she-oak, casuarina, coast she-oak, common ironwood, horsetail casuarina
she-oak
pedunculate, pubescent at least when immature;
bracts thin in exposed portion, not vertically expanded;
bracteoles ± protruding from surface of infructescence, never greatly thickened, always lacking dorsal protuberance.
persistent branchlets distinguished from deciduous branchlets by shorter segments and differences in shape or size of leaves;
furrows deep and closed, concealing stomates.
pale yellow-brown or grayish, dull, glabrous.
= 9.
Casuarina equisetifolia
Casuarina
Subspecies 2 (1 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Species 17 (3 in the flora).
Hybrids are frequent in cultivation; in the flora, hybrids are known between all combinations of the three species.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Longitudinal ridges of branchlets flat or slightly rounded-convex; leaf teeth 12–17; teeth on young permanent shoots long-recurved. | C. glauca |
1. Longitudinal ridges of branchlets prominently angular; leaf teeth (6–)7–10; teeth on young permanent shoots erect to spreading. | → 2 |
2. Branchlets ± densely and obviously pubescent; teeth (6–)7–8, not marcescent; infructescence body 12–24 × 9–11 mm, bracteoles acute; samaras 6–8mm. | equisetifolia subsp. equisetifolia |
2. Branchlets sparsely and minutely pubescent; teeth 8–10, marcescent; infructescence body 7–14 × 4–6 mm, bracteoles broad-acute; samaras 3–4 mm. | cunninghamiana subsp. cunninghamiana |
WildflowerSearch
iNaturalist
USDA Plants Database
