plant

Nymphaea lotus L.

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Waterlily

Nymphaea lotus is a floating leafed macrophte and water lily, native to Africa and specific areas in Europe. It has a number of medicinal properties and is often introduced into new areas as an ornamental. This species has become naturalized in North America and some countries in South America and Asia, an outlying population in Romania, southeastern Europe is recognised as Nymphaea lotus var. thermalis.

Native to: Angola, Benin, Botswana, Burkina, Burundi, Cameroon, Central African Repu, Chad, Congo, Egypt, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Ivory Coast, Kenya, KwaZulu-Natal, Liberia, Madagascar, Malawi, Mali, Mauritania, Mozambique, Niger, Nigeria, Northern Provinces, Romania, Rwanda, Senegal, Sierra Leone, Somalia, Sudan, Swaziland, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe.

Introduced into: Brazil North, Brazil Northeast, Brazil Southeast, Colombia, Costa Rica, Florida, Guyana, Louisiana, Mauritius, Panamá, Seychelles, Society Is., Venezuela.

Submitted by
Benedetta Spelta
GPS
5.8535070, 6.4771399
Geographical region
Western Africa
Drainage Basin
Niger
River catchment
Water body type
Creek
Water body name
Nameless
Water body part
Water body course
Lower course
Water body: tributary of
River
Tributary name
Asse
Type locality
Egypt
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
22-30 °C
Water flow/curent
None

Chemical parameters

pH
5.5-7.2
Conductivity
GH
KH
Dissolved Oxygen

Phytology

Plant form
Emersed
Plant type
Rhizomatous
Plant size
20-80 cm
Plant growth rate
Fast
Plant light demand
High
CO2
None
Aquarium equipment

Plants of the order Nymphaeles typically require calm, shallow (<2 m) water, full sunlight and neutral to slightly alkaline pH. Nymphaea lotus occurs in both mesotrophic and oligotrophic waters, its nutrient requirements being obtained from the organic detritus into which it is rooted.

Plant care

Plants of Nymphaea lotus are distinguishable from other neotropical Nymphaea by several characteristics. The mature leaves are regularly spinose-dentate, very strongly peltate (pelta 2-5 cm) and usually covered with short pubescence, which is sometimes very dense, on the undersurfaces and petioles. The penduncles are often pubescent as well and project the flowers up to 20 cm above the water surface. The normally white-petaled flowers are distinctive in having very prominently veined sepals, stamens with only minute connective appendages and long (ca 10-15 mm) linear carpellary processes. Of other species with dentate leaves, Nymphaea ampla is glabrous, has stamens with prominent connective appendages and has short conical carpellary processes. Nymphaea rudgeana is glabrous with very irregularly indulate or dentate leaves, has sepals lacking prominent venation and has clavate carpellary processes.

The white Egyptian lotus must be grown in areas with shallow waters and if you want to keep the plant low and compact, avoiding the proliferation of superficial leaves, it is necessary from time to time to eliminate the larger leaves (the older ones) by pruning them at the base of the petiole, and to cut immediately the stems of the leaves clearly destined to the surface whenever they occur.

In low light conditions the plant remains less compact and the production of leaves destined for the surface is much earlier and more frequent, as the lack of light on the bottom pushes the plant more towards the search for surface light. In practice, in nature, due to the darkening of the seabed caused by the proliferation of superficial leaves, the plant ceases the formation of foliage destined to remain submerged and produces only foliage of the type intended for the surface, the plant practically becomes like a float, but held at the bottom by the rhizome.

Water care

The water flow must not be too strong, in fact the stagnant water is better.

As far as fertilization is concerned, it is a medium-sized plant, a complete and balanced fertilization certainly helps in obtaining a good quality of the submerged foliage, both in terms of consistency and coloring, but everything must obviously be related to the amount of light offered and to the administration of CO2.

As far as reproduction is concerned, the Nymphaea lotus, in nature, reproduces by flowering and subsequent fruiting.

Bibliography