Spatterdock, Rocky Mountain pond-lily

Nuphar polysepala

Physical Characteristics

Nuphar polysepala is a PERENNIAL growing to 1.8 m (6ft). See above for USDA hardiness. It is hardy to UK zone 4. It is in flower from July to August. The species is hermaphrodite (has both male and female organs) and is pollinated by Flies, beetles. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It can grow in water.

Distribution

Western N. America - Alaska to California.

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

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].

Known Hazards

None known