Spiny Naiad

Najas marina

Native to:
Algeria, Argentina, Aruba, Austria, Bahamas, Baleares, Baltic States, Bangladesh, Belarus, Belgium, Bolivia, Botswana, Brazil, Bulgaria, Burundi, Canada, Canary Is., Central American Pacific Is., China, Corse, Cuba, Cyprus, Czechia-Slovakia, Denmark, Dominican Republic, DR Congo, Egypt, El Salvador, Eritrea, Finland, France, Galápagos, Germany, Great Britain, Greece, Gulf States, Haiti, Hungary, India, Iran, Iraq, Italy, Jamaica, Japan, Kazakhstan, Kirgizstan, Korea, Kriti, Lebanon-Syria, Leeward Is., Lesser Sunda Is., Libya, Madagascar, Malawi, Mauritius, Mexico, Morocco, Mozambique, Namibia, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Oman, Pakistan, Palestine, Panamá, Poland, Portugal, Puerto Rico, Réunion, Romania, Russia, Rwanda, Sardegna, Saudi Arabia, Senegal, Sicilia, Sinai, Socotra, South Africa, Spain, Sri Lanka, Sumatera, Sweden, Switzerland, Tadzhikistan, Taiwan, Tanzania, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe, Turkmenistan, Turks-Caicos Is., Uganda, Ukraine, United Sta

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Hydrocharitaceae
Genus:
Najas
Species:
Najas marina
USDA Symbol:
NAMA

Growth Characteristics

Life Cycle:
Annual
Growth Habit:
Aquatic
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jun,jul,aug,sep

Garden & Ecology Notes

Wildlife Value:
waterfowl, aquatic invertebrates
Salt Tolerant:
Yes

Soil Requirements

Soil Type:
submerged in nutrient-rich aquatic environments
pH:
6.0 - 8.0 (neutral to slightly alkaline)
Drainage:
tolerates poor drainage
Moisture:
consistently submerged
Notes:
commonly found in freshwater lakes and slow-moving rivers