Editing Ammophila (plant) (section)

== Species ==
Only two species seem incontrovertible: ''A.&nbsp;arenaria'' and ''A.&nbsp;breviligulata''. Two other species have been proposed, and are discussed below.
* '''''[[Ammophila arenaria|A. arenaria]]''''' - '''European marram grass''' or '''European beachgrass'''. Native to coasts of [[Europe]] (north to [[Iceland]]) and northwest [[Africa]]. Inflorescence to 25&nbsp;cm long; broad.
* '''''A. baltica''''' - '''Purple marram'''. ''A. baltica'' has now been identified as a [[Hybrid (biology)|hybrid]] between ''A. arenaria'' and ''[[Calamagrostis epigejos]]''. The hybrid occurs in parts of northern Europe, mainly from the [[Baltic Sea]] west to eastern England, and is known as ''× Ammocalamagrostis baltica'' or ''× Calammophila baltica''.<ref>{{cite web |title=Calamagrostis epigejos x Ammophila arenaria = X Calammophila baltica (Flüggé ex Schrad.) Brand |url=https://data.nbn.org.uk/Taxa/NHMSYS0001754369 |publisher=National Biodiversity Network (UK)}}</ref>
* '''''[[Ammophila breviligulata|A. breviligulata]]''''' - '''American marram grass''' or '''American beachgrass'''. Native to coasts of eastern [[North America]], including the shores of the [[Great Lakes]]. Inflorescence to 30&nbsp;cm long; narrower than ''A. arenaria''.
* '''''A. champlainensis''''' or '''''A.&nbsp;breviligulata''''' '''ssp.''' '''''champlainensis''''' - '''Champlain beachgrass'''. Native to the shores of [[Lake Ontario]] and [[Lake Champlain]]. Inflorescence to 22&nbsp;cm long; very similar to ''A. breviligulata'', and no longer considered a distinct species by several authorities.<ref>{{ITIS |id=185263 |taxon=''Ammophila champlainensis'' |access-date=6 September 2008 }}</ref><ref>The identification of Champlain beachgrass as a species that is distinct from ''A. breviligulata'' is still under investigation, and some authors consider Champlain beachgrass to be a subspecies ''A. breviligulata'' ssp. ''champlainensis'' (Seymour) P.J. Walker, C.A. Paris & Barrington ex Barkworth. Recent work on morphological differences between varying populations assigned to ''A. breviligulata'' and to ''A. champlainensis'' do not support the assignment of a distinct species for the latter specimens, despite significant differences. See {{cite journal |last=Delisle-Oldham |first=M. B. |author2=Oldham, M. J.|author3= Catling, P. M. |year=2008 |title=Taxonomic Recognition of Ammophila champlainensis and Morphological Variation in Northeastern North American Ammophila (Poaceae) |url=http://www.bioone.org/perlserv/?request=get-abstract&doi=10.3119%2F07-07.1&ct=1 |journal=Rhodora |volume=110 |issue=942 |pages=129–156 |access-date=2008-09-21 |doi=10.3119/07-07.1 |s2cid=86593875 }}</ref><ref>
{{cite web|title=Champlain Beachgrass Guide |publisher=New York Natural Heritage Program |url=http://www.acris.nynhp.org/guide.php?id=9716 |access-date=2008-09-27}}</ref>