Najas minor

Source: Wikipedia, the free encyclopedia.

Brittle waternymph
Brittle naiad; note highly divided terminal heads
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Alismatales
Family: Hydrocharitaceae
Genus: Najas
Species:
N. minor
Binomial name
Najas minor
Synonyms[1]
  • Caulinia fragilis Willd.
  • Caulinia minor (All.) Coss. & Germ.
  • Fluvialis minor (All.) Pers.
  • Ittnera minor (All.) C.C.Gmel.
  • Najas dichotoma Roxb.
  • Najas fragilis (Willd.) Delile
  • Najas minor var. intermedia Ces.
  • Najas minor var. longifolia R.Corti
  • Najas minor var. spinosa Rendle
  • Najas moshanensis N.Z.Wang
  • Najas subulata Thuill.
  • Najas ternata Roxb. ex Griff.

Najas minor, known as brittle naiad or brittle waternymph,

the Netherlands to Morocco east to Japan and the Philippines, including China, Siberia, Central Asia, Iran, Turkey, Ukraine, Germany, France Italy and a host of other countries.[3] It is now introduced to North America and considered a weedy invasive species in the eastern half of the United States from Florida to Oklahoma to New Hampshire to Ontario to South Dakota.[4] This plant prefers calm waters, such as ponds, reservoirs, and lakes, and is capable of growing in depths
up to 4 meters.

Identification

Najas minor grows in dense clusters and has highly branched

slender naiad.[5][6][7]

Distribution

Najas minor is distributed widely in the Northern Hemisphere, such as Canada, the United States, Japan, China, Europe.[8] This species is also reported from tropical Asia (Thailand),[9] but the report is now recognized as an identification error.[10]

Invasive spread and control

Brittle naiad was introduced to the

harvesting of brittle naiad is difficult, as the brittle stems readily break and are easily disbursed throughout the system. As with most invasive species, prevention of an infestation is easier than eradication.[citation needed
]

References

  1. ^ The Plant List
  2. ^ USDA, NRCS (n.d.). "Najas minor". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 16 July 2015.
  3. ^ "World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew". apps.kew.org. Retrieved 2017-01-31.
  4. ^ Biota of North America Project, Najas minor
  5. ^ Carlo Allioni. 1773. Auctarium ad Synopsim Methodicam Stirpium Horti Reg. Taurinensis 3, Najas minor
  6. ^ Carlo Allioni. 1774. Mélanges Philos. Mat. Soc. Roy. Turin 5: 55, Najas minor
  7. ^ N.Z.Wang. 1985. Journal of Wuhan Botanical Research 3(1): 31, Najas moshanensis
  8. ^ Haynes, R.R. 2000. Najadaceae. pp. 77–83. In: Flora of North America Editorial Committee (eds), Flora of North America north of Mexico, Vol. 22, Magnoliophyta: Alismatidae, Arecidae, Commelinidae (in part), and Zingiberidae. Oxford University Press, New York, NY, USA.
  9. ^ Haynes, R.R. 2001. Hydrocharitaceae. In: T. Santisuk & K. Larsen (eds), Flora of Thailand 7: 365–382. The Forest Herbarium, Royal Forest Department. Bangkok.
  10. ^ Ito, Y. (2016) Taxonomic notes on the genus Najas (Hydrocharitaceae) in Thailand: addition of N. marina and exclusion of N. minor. Thai Forest Bulletin 44: 104-107. doi: 10.20531/TFB.2016.44.2.03

External links

Wikimedia Commons has media related to Brittle Naiad.
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