Helobiae is a botanical name. It was used in the Engler and Wettstein systems for an order of flowering plants; in the latter system it had this circumscription: A botanical name is a formal name conforming to the ICBN. As with its zoological and bacterial equivalents it may also be called a scientific name. Botanical names may be in one part (genus and above), two parts (species) or three parts (below the rank of species). ... One of the prime systems of plant taxonomy, the Engler system was devised by Adolf Engler. ... A system of plant taxonomy, the Wettstein system recognised the following main groups, according to R. Wettstein (4th edition, 1935). ...

• order Helobiae

  family Alismataceae

  family Butomaceae

  family Hydrocharitaceae

  family Scheuchzeriaceae

  family Aponogetonaceae

  family Potamogetonaceae

  family Najadaceae

The Cronquist system placed quite a few of the plants involved in order Alismatales, as does the APG II system, used here, although it assumes a much expanded circumscription of the order. Type Genus Alisma L. Genera The Alismataceae or water-plantain family is a family of flowering plants, comprising 11 genera and between 85-95 species. ... Binomial name Butomus umbellatus L. The flowering rush (Butomus umbellatus), also known as grass rush, is a perennial aquatic plant, constituting the family Butomaceae. ... Genera Apalanthe Appertiella Blyxa Egeria Elodea Enhalus Halophila Hydrilla Hydrocharis Lagarosiphon Limnobium Maidenia Nechamandra Ottelia Stratiotes Thalassia Vallisneria Hydrocharitaceae is a family of that includes a number of species of aquatic plant, broadly they are called tape-grasses. ... Binomial name Scheuchzeria palustris L. Scheuchzeria palustris, commonly called the Rannoch-rush, is a flowering plant, the only species (or one of two species) in the genus Scheuchzeria, itself the only genus in the family Scheuchzeriaceae. ... Species About 30 - 47, see text. ... Genera Potamogeton Groenlandia Ruppia Potamogetonaceae is a family of aquatic plants. ... Najas is a genus of about 50 species of aquatic plants, with a cosmopolitan in distribution. ... A system of plant taxonomy, the Cronquist system is a scheme for the classification of flowering plants (or angiosperms). ... Families Alismataceae Aponogetonaceae Araceae Butomaceae Cymodoceaceae Hydrocharitaceae Juncaginaceae Limnocharitaceae Posidoniaceae Potamogetonaceae Ruppiaceae Scheuchzeriaceae Tofieldiaceae Zosteraceae The order Alismatales contains the alismatids, a group of monocotyledons (class Liliopsida). ... A modern system of plant taxonomy, the APG II system of plant classification was published in 2003 by the Angiosperm Phylogeny Group, APG, in Angiosperm Phylogeny Group (2003). ...