View source for Casuarina

{{Treatment/ID
|accepted_name=Casuarina
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Amoen. Acad.
|place=4: 143. 1759
|year=1759
}}
|common_names=She-oak
|basionyms=
|synonyms=
|hierarchy=Casuarinaceae;Casuarina
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Casuarinaceae]]</div><div class="higher-taxon"><small>genus</small>[[Casuarina]]</div></div>
|etymology=Neo-Latin casuarius, cassowary, from resemblance of drooping branchlets to feathers of the cassowary
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Young </b>persistent branchlets distinguished from deciduous branchlets by shorter segments and differences in shape or size of leaves; furrows deep and closed, concealing stomates. <b>Infructescences</b> 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. <b>Samaras</b> pale yellow-brown or grayish, dull, glabrous. <b>x</b> = 9.</span><!--

-->{{Treatment/Body
|distribution=Almost throughout range of family.
|discussion=<p>Species 17 (3 in the flora).</p><!--
--><p>Hybrids are frequent in cultivation; in the flora, hybrids are known between all combinations of the three species.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Longitudinal ridges of branchlets flat or slightly rounded-convex; leaf teeth 12–17; teeth on young permanent shoots long-recurved.
|[[Casuarina glauca|Casuarina glauca]]
|-id=key-0-1
|1
|Longitudinal ridges of branchlets prominently angular; leaf teeth (6–)7–10; teeth on young permanent shoots erect to spreading.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Branchlets ± densely and obviously pubescent; teeth (6–)7–8, not marcescent; infructescence body 12–24 × 9–11 mm, bracteoles acute; samaras 6–8mm.
|[[Casuarina equisetifolia subsp. equisetifolia|Casuarina equisetifolia subsp. equisetifolia]]
|-id=key-0-2
|2
|Branchlets sparsely and minutely pubescent; teeth 8–10, marcescent; infructescence body 7–14 × 4–6 mm, bracteoles broad-acute; samaras 3–4 mm.
|[[Casuarina cunninghamiana subsp. cunninghamiana|Casuarina cunninghamiana subsp. cunninghamiana]]
|}
</div></div><!--

-->{{#Taxon:
name=Casuarina
|author=
|authority=Linnaeus
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Casuarinaceae
|distribution=Almost throughout range of family.
|reference=None
|publication title=Amoen. Acad.
|publication year=1759
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V3/V3_858.xml
|genus=Casuarina
}}<!--

-->[[Category:Treatment]][[Category:Casuarinaceae]]