Editing Alismatales (section)

==Description==
The Alismatales comprise [[herbaceous]] flowering plants of often aquatic and marshy habitats, and the only monocots known to have green [[Plant embryonic development|embryo]]s other than the [[Amaryllidaceae]]. They also include the only marine angiosperms growing completely submerged, the [[seagrass]]es.<ref name=Stevens>{{cite web|last=Stevens | first=P.F. | year=2022 | version=14 | access-date= 28 October 2022 | title=Alismatales|url=http://www.mobot.org/MOBOT/Research/APweb/orders/alismatalesweb.htm#Alismatales|website=[[Angiosperm Phylogeny Website]]|publisher=[[Missouri Botanical Garden]]}}</ref> The [[flower]]s are usually arranged in [[inflorescence]]s, and the mature seeds lack [[endosperm]].

Both marine and freshwater forms include those with staminate flowers that detach from the parent plant and float to the surface. There they can pollinate carpellate flowers floating on the surface via long pedicels.<ref name=SullTitu96>{{Citation |mode=cs1 |last1=Sullivan |first1=G. |last2=Titus |first2=J.E. |date=1996 |title=Physical site characteristics limit pollination and fruit set in the dioecious hydrophilous species, ''Vallisneria americana'' |journal=Oecologia |volume=108 |issue=2 |pages=285–292 |doi=10.1007/BF00334653 |pmid=28307841 |bibcode=1996Oecol.108..285S |s2cid=13369438 |name-list-style=amp }}</ref> In others, pollination occurs underwater, where pollen may form elongated strands, increasing chance of success. Most aquatic species have a totally submerged juvenile phase, and flowers are either floating or emerge above the water's surface. Vegetation may be totally submersed, have floating leaves, or protrude from the water. Collectively, they are commonly known as "water plantain".<ref>{{Cite web |url=http://www.eeb.uconn.edu/people/les/Manuscript_Files/Encyclopedia_Life_Sciences.pdf |title=-Alismatales (Water Plantains) |access-date=27 May 2010 |archive-url=https://web.archive.org/web/20100612013757/http://www.eeb.uconn.edu/people/les/Manuscript_Files/Encyclopedia_Life_Sciences.pdf |archive-date=12 June 2010 |url-status=dead }}</ref>