89.000 Vallisneria L. - Tapegrasses

Symoens, J.J. (2009) Hydrocharitaceae Flora Zambesiaca 12(2)

Description of the genus

Submerged perennial dioecious herbs. Leaves linear, radical, sessile, lacking a midrib; tip obtuse; margin entire or minutely serrate. Flowers unisexual, floating. Male flowers free-floating on surface; female flowers floating, attached to plant by long peduncle. Sepals 3. Petals 1 (male) or 3 (female), minute. Fruit a narrow cylindric capsule.

Worldwide: 2-10 species, tropical and warm temperate

Caprivi: 1 taxon.

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Links to taxa: View: living plant images - herbarium specimen images - all images for this genus

Species	Content
spiralis L.

Other sources of information about Vallisneria:

Our websites:

Flora of Botswana: Vallisneria
Flora of Burundi: Vallisneria
Flora of Malawi: Vallisneria
Flora of Mozambique: Vallisneria
Flora of Zambia: Vallisneria
Flora of Zimbabwe: Vallisneria

External websites:

African Plants: A Photo Guide (Senckenberg): Vallisneria
BHL (Biodiversity Heritage Library): Vallisneria
EOL (Encyclopedia of Life): Vallisneria
GBIF (Global Biodiversity Information Facility): Vallisneria
Google: Web - Images - Scholar
iNaturalist: Vallisneria
IPNI (International Plant Names Index): Vallisneria
JSTOR Plant Science: Vallisneria
Mansfeld World Database of Agricultural and Horticultural Crops: Vallisneria
Plants of the World Online: Vallisneria
Tropicos: Vallisneria
Wikipedia: Vallisneria