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Nuphar polysepala - Engelm.
                 
Common Name Spatterdock, Rocky Mountain pond-lily
Family Nymphaeaceae
USDA hardiness 4-8
Known Hazards None known
Habitats Ponds, shallow lakes and slow-flowing rivers[60, 187], from valleys to almost 3,000 metres in the mountains[212].
Range Western N. America - Alaska to California.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Fully Hardy Water Plants Semi-shade Full sun

Summary

Nuphar polysepala Spatterdock, Rocky Mountain pond-lily


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Nuphar polysepala Spatterdock, Rocky Mountain pond-lily
   
Physical Characteristics
 icon of manicon of flower
Nuphar polysepala is a PERENNIAL growing to 1.8 m (6ft).
It is hardy to zone (UK) 4. It is in flower from Jul to August. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Flies, beetles.Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It can grow in water.

Synonyms
N. lutea polysepala. (Engelm.)E.O.Beal.

Habitats
 Pond;
Edible Uses
Edible Parts: Root;  Seed.
Edible Uses:

Root - raw or cooked[2, 161]. Boiled or baked[2, 85, 94]. The root can also be dried and ground into a flour[85]. The rather strong taste can be removed by soaking the root in water prior to use[85]. The N. American Indians used the roots in times of famine[212]. Seed - raw or cooked[2, 46, 61, 101, 161]. The fairly large seed can be dried and ground into a powder and then be used for making porridge or mixed with other flours for making bread[94, 172]. When roasted it resembles popcorn in flavour[212].
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.

Analgesic;  Haemostatic;  Poultice.

The root is analgesic and antihaemorrhagic[257]. A decoction is taken in the treatment of pain in any part of the body, and for lung haemorrhages, TB etc[257]. A poultice made from the root is used in the treatment of any pain, rheumatic joints, sores etc[257].
Other Uses
None known
Cultivation details
A water plant requiring a rich soil and a sunny position[1, 56]. It is best grown in still water up to 75cm deep but it also tolerates slow moving water[200]. Succeeds in light shade[200]. Plants are hardy to about -20°c[187].
Propagation
Seed - sow as soon as it is ripe in a greenhouse in pots submerged under 25mm of water. Prick out into individual pots as soon as the first true leaf appears and grow them on in water in a greenhouse for at least two years before planting them out in late spring. The seed is collected by wrapping the developing seed head in a muslin bag to avoid the seed being lost. Harvest it 10 days after it sinks below the soil surface or as soon as it reappears[200]. Division in May. Each portion must have at least one eye. Submerge in pots in shallow water until established[56].
Other Names
Found In
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 NameEdibility RatingMedicinal Rating
Nuphar advenaCommon Spatterdock, Yellow pond-lily, Varigated yellow pond-lily32
Nuphar japonicum 31
Nuphar luteaYellow Water Lily, Yellow pond-lily, Rocky Mountain pond-lily, Varigated yellow pond-lily32
Nuphar pumilaYellow pond-lily31
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Expert comment
 
Author
Engelm.
Botanical References
60200
Links / References
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Subject : Nuphar polysepala  

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