Flora of New York/Clade alismatid monocots

The Acorales and Alismatales form the basal grade of the monocots (Lilianae), informally grouped as the "alismatid monocots." monocots   Acorales : Acoraceae   Acorus americanus (American sweetflag)     Acorus calamus (old world sweetflag)           Alismatales   Tofieldiaceae—Triantha glutinosa (sticky false asphodel)       Araceae   Orontioideeae   Orontium aquaticum (golden club)     Symplocarpus foetidus (skunk cabbage)           Lemnoideae   Spirodela polyrrhiza (common duckmeal)     Lemna spp. (5 duckweeds)     Wolffia spp. (3 watermeals)         Aroideae   Calla palustris (wild calla, water arum)     Peltandra virginica (green arrow arum, tuckahoe)     Arisaema dracontium (green dragon)     Arisaema triphyllum (4 Jack-in-the-pulpit subspp.)                   Alismataceae   Sagittaria spp. (9 arrowheads)     Alisma spp. (3 water plantains)           Butomaceae—Butomus umbellatus (flowering rush)     Hydrocharitaceae   Hydrocharitoideae   Hydrocharis morsus-ranae (European frog’s bit)     Egeria densa (Brazilian waterweed)     Limnobium spongia (American frog’s bit)           Stratiotoideae—       Anacharidoideae—Elodea spp. (3 waterweeds)     Hydrilloideae   Najas spp. (8 water nymphs, naiads)     Hydrilla verticillata (hydrilla, water thyme)     Vallisneria americana (water celery, tape grass)                       Scheuchzeriaceae—Scheuchzeria palustris (pod grass)       Aponogetonaceae (none in NY)       Juncaginaceae—Triglochin spp. (2 arrowgrasses)       Maundiaceae (none in NY)         Posidoniaceae (none in NY)       Ruppiaceae—Ruppia maritima (widgeon grass, ditch grass)     Cymodoceaceae (none in NY)           Zosteraceae—Zostera marina (eel grass}     Potamogetonaceae                           Dioscoreales       Liliales       Asparagales         Poales       Zingiberales     Commelinales                   alismatid monocots lilioid monocots commelinid monocots