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Summary

Physical Characteristics

Najas graminea is a ANNUAL growing to 0.2 m (0ft 8in).
See above for USDA hardiness. It is hardy to UK zone 8. It is in flower from July to September, and the seeds ripen from July 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 Water.
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.

UK Hardiness Map US Hardiness Map

Synonyms

Plant Habitats

Pond;

Edible Uses

Edible Parts: Leaves
Edible Uses:

Two reports say that the plant is edible but give no more details[105, 177]. The reports probably refer to the leaves[K].

References More on Edible Uses

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

References More on Medicinal Uses

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Other Uses

None known

Special Uses

References More on Other Uses

Cultivation details

A 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].

References Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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Plant 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 in situ in the spring.

Other Names

If available other names are mentioned here

Native Range

TEMPERATE ASIA: Afghanistan, Iran, Lebanon, Syria, Turkmenistan, Japan (Honshu, Kyushu, Shikoku) TROPICAL ASIA: India, Papua New Guinea, Myanmar, Indonesia, Philippines AUSTRALASIA: Australia (Western Australia (north), Northern Territory (north)) AFRICA: Algeria, Egypt, Sudan, Chad, Yemen (Arkhabil Suqutrá), Kenya, Tanzania, Central African Republic, Cameroon, Democratic Republic of the Congo, Gambia, Mali, Senegal, Botswana, South Africa (Transvaal)

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 itâ€™s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants

Latin Name	Common Name	Habit	Height	Hardiness	Growth	Soil	Shade	Moisture	Edible	Medicinal	Other
Najas flexilis	Nodding waternymph	Annual	0.3	4-8		LMH	SN	Wa	2	0	2
Najas marina	Spiny Naiad	Perennial	0.5	-		LMH	SN	Wa	1	0

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.

Najas graminea - Delile.