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Triglochin palustris - L.

Common Name Marsh Arrow Grass
Family Juncaginaceae
USDA hardiness 4-8
Known Hazards The green leaves of plants can contain a toxic cyanogenic glycoside, it is especially present during and just after a drought and is particularly toxic to ruminants[172]. Plants growing in Britain are usually perfectly safe, this is probably due to the climate[76].
Habitats Marshes, usually amongst tall grass[17].
Range Europe, including Britain, from the Arctic south and east to N. Africa, northern Asia. N. America.
Edibility Rating    (2 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care (info)
Fully Hardy Wet Soil Water Plants Full sun
Triglochin palustris Marsh Arrow Grass


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Triglochin palustris Marsh Arrow Grass
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Summary


Physical Characteristics

 icon of manicon of flower
Triglochin palustris is a PERENNIAL growing to 0.5 m (1ft 8in).
See above for USDA hardiness. It is hardy to UK zone 5. It is in flower from June to August. The species is hermaphrodite (has both male and female organs) 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 and can grow in saline soils.
It cannot grow in the shade. It prefers wet soil and can grow in water.

UK Hardiness Map US Hardiness Map

Synonyms

Triglochin palustre L., orth. var.

Habitats

 Pond; Bog Garden;

Edible Uses

Edible Parts: Seed  Stem
Edible Uses: Coffee

The white base of the leaf stem can be eaten raw or cooked[172]. An unpleasant odour is produced in the cooking process but the flavour of the stems is sweet[172]. The green parts of the plant should not be eaten since they can contain a toxin. See notes at top of the page. Seed - parched and ground into a powder[172]. The roasted seed is a coffee substitute[172].

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

Succeeds in shallow water or a bog garden[200]. This plant does not seem to require high salt levels for its survival[200].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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Propagation

Seed - we have no information for this species but suggest sowing the seed in a cold frame as soon as it is ripe if this is possible. Stand the pots in about 2cm of water. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer. Division in spring[200]. Larger divisions can be planted out direct into their permanent positions. We have found that it is best to pot up smaller divisions and grow them on in light shade in a greenhouse or cold frame until they are growing away well. Plant them out in the summer or the following spring.

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
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Triglochin maritimaSea Arrow GrassPerennial0.6 4-8  LMHNWeWa201
Triglochin proceraWater RibbonsPerennial0.6 -  LMHNWeWa10 

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.

 

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Expert comment

Author

L.

Botanical References

17

Links / References

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