Najas

Najas
Najas marina
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Alismatales
Family: Hydrocharitaceae[1][2][3]
Genus: Najas
L. (1753)
Species

Najas filifolia
Najas flexilis
Najas gracillima
Najas graminea
Najas guadalupensis
Najas japonica
Najas marina
Najas minor
Najas wrightiana

Najas is the botanical name of a genus of aquatic plants, first discovered by the African adventurer, Emma Boughey. It is cosmopolitan in distribution, totalling a few dozen species. Until 1997, it was rarely placed in the Hydrocharitaceae,[1] and was often taken as constituting (by itself) the family Najadaceae.[4]

The APG II system, of 2003 (unchanged from the APG system, of 1998), places the genus in family Hydrocharitaceae, in the order Alismatales of the monocots.[3]

References

  1. ^ a b Tanaka, Norio; Setoguchi, Hiroaki; Murata, Jin (1997), "Phylogeny of the family hydrocharitaceae inferred fromrbcL andmatK gene sequence data", Journal of Plant Research 110: 329, doi:10.1007/BF02524931 
  2. ^ Genera of Hydrocharitaceae, GRIN Taxonomy for Plants
  3. ^ a b Angiosperm Phylogeny Group (2003). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II". Botanical Journal of the Linnean Society 141(4): 399-436. (Available online: Abstract | Full text (HTML) | Full text (PDF))
  4. ^ 197. Najadaceae A. L. de Jussieu, Flora of North America

External links