plant Easy level

Vallisneria genus P.Micheli ex L.

Sponsored by

Eelgrass, Tape grass, Vals, Vallis, Wild-celery

Vallisneria spp. are dioecious, submerged, freshwater, perennial herbs. This genus belongs to the Hydrocharitaceae family and it is the most common variety of aquatic plant. Its is widely distributed around the world because its durability and ease adaptation.

Doubtfully present in: Cameroon

Native to: Afghanistan, Alabama, Algeria, Assam, Bangladesh, Botswana, Bulgaria, Burundi, Cambodia, Caprivi Strip, Central African Repu, Chad, China North-Central, China South-Central, China Southeast, Colombia, Congo, Connecticut, Cuba, Delaware, District of Columbia, Dominican Republic, Egypt, Equatorial Guinea, Ethiopia, Florida, France, Georgia, Ghana, Greece, Guatemala, Haiti, Honduras, Illinois, India, Indiana, Iowa, Iran, Iraq, Italy, Jamaica, Japan, Kazakhstan, Kentucky, Kenya, Kirgizstan, Korea, KwaZulu-Natal, Lebanon-Syria, Louisiana, Maine, Malawi, Mali, Manchuria, Manitoba, Maryland, Massachusetts, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Michigan, Minnesota, Mississippi, Missouri, Mozambique, Myanmar, Namibia, Nepal, Nevada, New Brunswick, New Caledonia, New Guinea, New Hampshire, New Jersey, New Mexico, New South Wales, New York, Nigeria, North Carolina, North Caucasus, Northern Territory, Nova Scotia, Ohio, Ontario, Oregon, Pakistan, Palestine, Pennsylvania, Philippines, Portugal, Primorye, Queensland, Québec, Rhode I., Romania, Rwanda, Senegal, Sierra Leone, South Australia, South Carolina, South Dakota, South European Russi, Sudan, Switzerland, Tadzhikistan, Taiwan, Tanzania, Tasmania, Tennessee, Texas, Thailand, Turkey, Turkey-in-Europe, Turkmenistan, Uganda, Ukraine, Uzbekistan, Vermont, Victoria, Vietnam, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Western Australia, Wisconsin, Yugoslavia, Zambia, Zaïre, Zimbabwe

Extinct in: Spain

Introduced into: Belgium, Czechoslovakia, Germany, Great Britain, Hungary, Mauritius, Netherlands, Réunion

Submitted by
Eleonora Pasquariello
GPS
-9.6349087, 148.6232910
Geographical region
Oceania
Drainage Basin
River catchment
Water body type
Stream
Water body name
Nameless affluent
Water body part
Water body course
Lower course
Water body: tributary of
River
Tributary name
Safia
Type locality
Shores of Lake Victoria, Tanganyika, Tanzania
Conservation status/IUCN Red List
Not Evaluated (NE)
Listed in CITES
No

Water Chemistry

Water information

Water type
Fresh water
Water color
Clear water
Water transparency
Medium
Concentration of sediments
Medium
Water temperature
10-30 °C
Water flow/curent
Slow

Chemical parameters

pH
6-8
Conductivity
GH
KH
Dissolved Oxygen

Phytology

Plant form
Submersed
Plant type
Rosulate
Plant size
10-100 cm
Plant growth rate
Fast
Plant light demand
Medium
CO2
Low
Aquarium equipment

The plant easily stands quite a wide range of tank conditions and temperature variations.

Plant care

Vallisneria genus is characterized by an exceptionally fast growth. It doesn’t require special fertilizers, since naturally silted substrate is enough for it.

It needs up 1-2 months to establish in the aquarium, after that the plant starts growing fast. It propagates by growing runners with a bud at the end of each and a new plant quickly develops from it.

Includes 14 accepted species:

Vallisneria americana Michx.
Vallisneria anhuiensis X.S.Shen
Vallisneria annua S.W.L.Jacobs & K.A.Frank
Vallisneria australis S.W.L.Jacobs & Les
Vallisneria caulescens F.M.Bailey & F.Muell.
Vallisneria denseserrulata (Makino) Makino
Vallisneria erecta S.W.L.Jacobs
Vallisneria longipedunculata X.S.Shen
Vallisneria nana R.Br.
Vallisneria natans (Lour.) H.Hara
Vallisneria rubra (Rendle) Les & S.W.L.Jacobs
Vallisneria spinulosa S.Z.Yan
Vallisneria spiralis L.
Vallisneria triptera S.W.L.Jacobs & K.A.Frank

Water care

The genus Vallisneria is often recommended for beginners because it is relatively undemading aquatic plant, thrives both in soft and hard water, and resists a high conductivity.

Bibliography