Please donate to support our ‘Plants to Save the Planet’ Project. The Project is directed at enabling designers of ‘carbon farms’ and ‘food forests’: agroecosystems of perennial plants, to choose the most appropriate plants for their requirements and site conditions. We are working on a subset of plants in the PFAF database identified as having the most potential for inclusion in such designs. We are adding search terms and icons to those plants pages, and providing a range of search options aligned to categories of plants and crop yields, with Help facilities including videos. More >>>

Follow Us:

 

Najas marina - L.

Common Name Spiny Naiad
Family Najadaceae
USDA hardiness Coming soon
Known Hazards None known
Habitats Fresh or brackish water[50]. Ponds, lakes and slowly-moving rivers at elevations up to 2700 metres in China[266]. Brackish or highly alkaline waters of ponds and lakes to 1000 metres in America[270].
Range Cosmopolitan, found in most areas of the world, including Britain, but absent from colder regions.
Edibility Rating    (1 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care
Water Plants Semi-shade Full sun
Najas marina Spiny Naiad


http://commons.wikimedia.org/wiki/File:Illustration_Najas_marina0.jpg
Najas marina Spiny Naiad
http://commons.wikimedia.org/wiki/User:Fabelfroh

 

Translate this page:

Summary


Physical Characteristics

 icon of manicon of flower
Najas marina is a PERENNIAL growing to 0.5 m (1ft 8in). It is in flower from September to November, and the seeds ripen from September to November. The species is dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required). and is pollinated by Water.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils and can grow in saline soils.
It can grow in semi-shade (light woodland) or no shade. It can grow in water.

UK Hardiness Map US Hardiness Map

Synonyms

N. major. All.

Habitats

 Pond;

Edible Uses

Edible Parts: Leaves
Edible Uses:

Young plant - raw[46, 61, 105].

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.


None known

Our new book Edible Shrubs is now available.

Edible Shrubs provides detailed information, attractively presented, on over 70 shrub species. They have been selected to provide a mix of different plant sizes and growing conditions. Most provide delicious and nutritious fruit, but many also have edible leaves, seeds, flowers, stems or roots, or they yield edible or useful oil.

Read More

Edible Shrubs Book

Other Uses

None known

Special Uses

Cultivation details

A submerged water plant, succeeding in shallow fresh or brackish water[200]. This is one of the few genera of plants where fertilization takes place under the surface of the water[274]. Dioecious, male and female plants must be grown if seed is required[274].

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Fahrenheit:

image

The PFAF Bookshop

Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees, and Woodland Gardening. Our new book to be released soon is Edible Shrubs.

Shop Now

Propagation

Seed - we have no information on this species but suggest sowing the seed in situ as soon as it is ripe if this is possible. Otherwise store the seed in water in a cool place and sow it in situ in the spring. Division in the growing season[200].

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Najas flexilisNodding waternymphAnnual0.3 4-8  LMHSNWa20 
Najas gramineaRicefield waternymphAnnual0.2 7-10  LMHSNWa10 

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

Print Friendly and PDF

Expert comment

Author

L.

Botanical References

1750270

Links / References

For a list of references used on this page please go here

Readers comment

QR Code

What's this?

This is a QR code (short for Quick Response) which gives fast-track access to our website pages. QR Codes are barcodes that can be read by mobile phone (smartphone) cameras. This QR Code is unique to this page. All plant pages have their own unique code. For more information about QR Codes click here.

1. Copy and print the QR code to a plant label, poster, book, website, magazines, newspaper etc and even t-shirts.

2. Smartphone users scan the QR Code which automatically takes them to the webpage the QR Code came from.

3. Smartphone users quickly have information on a plant directly for the pfaf.org website on their phone.

Add a comment

If you have important information about this plant that may help other users please add a comment or link below. Only comments or links that are felt to be directly relevant to a plant will be included. If you think a comment/link or information contained on this page is inaccurate or misleading we would welcome your feedback at admin@pfaf.org. If you have questions about a plant please use the Forum on this website as we do not have the resources to answer questions ourselves.

* Please note: the comments by website users are not necessarily those held by PFAF and may give misleading or inaccurate information.

To leave a comment please Register or login here All comments need to be approved so will not appear immediately.

Subject : Najas marina  
© 2010, Plants For A Future. Plants For A Future is a charitable company limited by guarantee, registered in England and Wales. Charity No. 1057719, Company No. 3204567. This work is licensed under a Creative Commons License. Some information cannot be used for commercial reasons or be modified (but some can). Please view the copyright link for more information.
Web Design & Management