We need to raise £10,000 from user donations to get our finances in balance. More >>>

Follow Us:

 

Brasenia schreberi - J.F.Gmel.

Common Name Water Shield
Family Cabombaceae
USDA hardiness Coming soon
Known Hazards None known
Habitats Oligotrophic or mesotrophic ponds, lakes, and sluggish streams from sea level to 2000 metres[270].
Range N. America - Nova Scotia to Manitoba and Nebraska, south to Florida, Texas and Mexico.
Edibility Rating    (3 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Care
Water Plants Full sun
Brasenia schreberi Water Shield


Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database / USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester.
Brasenia schreberi Water Shield
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 76.

 

Translate this page:

You can translate the content of this page by selecting a language in the select box.

Summary

Water Shield is an aquatic plant with slender, branching stems. The Leaves are entire, floating, oval to elliptic in shape, green above, often purple beneath, long-stemmed, and have the stalk or petiole attached to the lower surface instead of the base or edge. The small, purple flowers have sepals and petals that are similar to each other.


Physical Characteristics

 icon of manicon of flower
Brasenia schreberi is a PERENNIAL growing to 0.1 m (0ft 4in) by 2 m (6ft). It is in flower from July to August. The species is hermaphrodite (has both male and female organs) and is pollinated by Beetles, wind.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid and neutral soils. It cannot grow in the shade. It can grow in water.

Synonyms

B. peltata.

Habitats

 Pond;

Edible Uses

Edible Parts: Leaves;  Root.
Edible Uses:

The young curled leaf tips, which are coated with a thick transparent mucilage, are eaten as a salad with vinegar, sake and soy sauce, or they added to soups as a thickener[106, 159, 183]. Considered a great delicacy in Japan where they are often bottled and sold in local markets[183]. They are mainly used in the spring[46]. A nutritional analysis is available[218]. Root - cooked[2, 106, 177]. Peeled then boiled and eaten, they can also be dried and stored for later use or ground into a powder[183].

Composition
Figures in grams (g) or miligrams (mg) per 100g of food.
Leaves (Dry weight)
  • 135 Calories per 100g
  • Water : 0%
  • Protein: 9.5g; Fat: 2.7g; Carbohydrate: 24.3g; Fibre: 1.4g; Ash: 63.5g;
  • Minerals - Calcium: 122mg; Phosphorus: 311mg; Iron: 27mg; Magnesium: 0mg; Sodium: 0mg; Potassium: 0mg; Zinc: 0mg;
  • Vitamins - A: 135mg; Thiamine (B1): 0.41mg; Riboflavin (B2): 0mg; Niacin: 0.05mg; B6: 0mg; C: 0mg;
  • Reference: [ 218]
  • Notes: The figure for ash is remarkably high and needs to be verified.

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.

Anthelmintic;  Antidote;  Astringent;  Cancer;  Vulnerary.

The leaves are astringent[240]. They are crushed and applied to abscesses and boils[218], and are also used in the treatment of phthisis and dysentery[240]. A decoction of the seed is antidotal[218]. It is also used in the treatment of dysentery and to relieve thirst[218]. The plant is anthelmintic and vulnerary[152, 178, 218]. It is used in the treatment of cancer[218].

Other Uses

Herbicide.

The plant has phytotoxic properties that allow it to inhibit the growth of other plants nearby and therefore allow it to become dominant. This gives it a potential for the natural control of invasive water weeds[274].

Cultivation details

A floating plant producing stems up to 2 metres long[266], it should be grown in still lime-free water up to 1.8 metres deep[200]. Prefers a rich soil[200]. A good plant for the water's edge but it is difficult to establish[1]. The submerged parts of the plant are conspicuously covered in a mucilaginous jelly[274]. Plants are not fully hardy in Britain[56]. According to another report this species requires a minimum winter temperature of 18°c and can only be grown in aquaria and ponds in heated greenhouses[200].

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 - no details have been found for this species. Seeds of many water plants have a short viability if allowed to dry out so it is probably best to sow the seed as soon as it is ripe in a warm greenhouse or to store it in water until the spring and to sow then. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Just cover the pots with water and then increase the depth as the plants grow. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Division in spring[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

 

Print Friendly and PDF

Expert comment

Author

J.F.Gmel.

Botanical References

43200235

Links / References

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

Readers comment

Missy Mier   Sun Sep 26 23:44:54 2004

How can the plant be destroyed? It has taken over my pond and I want rid of it.

   Sat Sep 13 2008

you should put more information or details on the habitat otherwise i thought it was pretty nice.

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 : Brasenia schreberi  
All the information contained in these pages is Copyright (C) Plants For A Future, 1996-2012.
Plants For A Future is a charitable company limited by guarantee, registered in England and Wales. Charity No. 1057719, Company No. 3204567,
Web Design & Management
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.