The Alismatales reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Alismatales

Alismatids
Scientific classification
Kingdom: Plantae Division: Magnoliophyta Class: Liliopsida Order: Alismatales
Families
Alismataceae Aponogetonaceae Araceae Butomaceae Cymodoceaceae Hydrocharitaceae Juncaginaceae Limnocharitaceae Posidoniaceae Potamogetonaceae Ruppiaceae Scheuchzeriaceae Tofieldiaceae Zosteraceae

Order Alismatales contains the alismatids, a group of monocotyledons (Class Liliopsida). At one point the alismatids were assigned to various distinct orders, but this approach produced polyphyletic groups, and so the whole group of families is now placed into a single order. These plants are commonly found in aquatic environmments. The families include:

• Family Alismataceae
• Family Limnocharitaceae
• Family Butomaceae
  • Flowering rush
• Family Hydrocharitaceae
• Family Najadaceae
• Family Aponogetonaceae
• Family Scheuchzeriaceae
• Family Ruppiaceae
• Family Cymodoceraceae
• Family Posidoniaceae
• Family Potamogetonaceae
• Family Zannicelliaceae
• Family Zosteraceae
  • Eelgrass Zostera marina
• Family Juncanginaceae

The Triuridaceae and Petrosaviaceae have been placed here, but there actual affinities are not so clear. The alismatids as are the sister group of the Arales and the latter have sometimes been included here.

See also

• Seagrass

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