Typha davidiana

Physical Characteristics

Typha davidiana is a PERENNIAL growing to 1 m (3ft 3in) at a fast rate. It is in flower from May to August, and the seeds ripen from June to September. The species is monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and is pollinated by Wind. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers wet soil and can grow in water.

Distribution

E. Asia - Northern China.

Habitats

Pond; Bog Garden;

Edible Uses

Edible Parts: Flowers Leaves Oil Pollen Root Seed Shoots Stem Edible Uses: Oil Roots - raw or cooked. It can be boiled and eaten like potatoes or macerated and then boiled to yield a sweet syrup. The root can also be dried, ground into a powder and then used as a thickener in soups etc or added to cereal flours. Rich in protein, this flour is used to make biscuits, cakes, bread etc. Young shoots in spring - raw or cooked[177]. An asparagus substitute. Base of mature stem - raw or cooked. It is best to remove the outer part of the stem. Young flowering stem - raw, cooked or made into a soup. It tastes like sweet corn. Seed - cooked. The seed is very small and fiddly to harvest, but has a pleasant nutty taste when roasted. An edible oil is obtained from the seed. Due to the small size of the seed this is probably not a very worthwhile crop[K]. Pollen - raw or cooked. A protein rich additive to flour used in making bread, porridge etc. It can also be eaten with the young flowers, which makes it considerably easier to utilize. The pollen can be harvested by placing the flowering stem over a wide but shallow container and then gently tapping the stem and brushing the pollen off with a fine brush[9]. This will help to pollinate the plant and thereby ensure that both pollen and seeds can be harvested[K].

Medicinal Uses

Anticoagulant Diuretic Emmenagogue Haemostatic Miscellany The pollen is diuretic, emmenagogue, haemostatic[176]. The dried pollen is said to be anticoagulant, but when roasted with charcoal it becomes haemostatic[238]. It is used internally in the treatment of kidney stones, haemorrhage, painful menstruation, abnormal uterine bleeding, post-partum pains, abscesses and cancer of the lymphatic system[222, 238]. It should not be prescribed for pregnant women[238]. Externally, it is used in the treatment of tapeworms, diarrhoea and injuries[238].

Known Hazards

None known