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Ceratophyllum demersum
  • Hornwort

a perennial member of the Ceratophyllum genus in the family Ceratophyllaceae.

248px
Niche
  • Unknown
    Unknown
    The ecosystem niches for this plant are unknown. Do you know them? Click the edit button to add them!
Functions
  • None
    None
    There are no functions defined for this plant. Do you know of some? Click the edit button to add them!
Light
  • Full sun
    Full sun
    The amount of sun exposure that a plant prefers in ideal conditions.
    Key
  • light shade
    Light shade
    The amount of shade a plant will tolerate without adverse health affects.
    Key
Water
  • Water Requirementsaquatic
    Aquatic
    The amount of water a plant needs for healthy growth, relative to other plants.
    Key
Soil
  • acid,neutral,alkaline
    Unknown
    The PH range (acidity or alkilinity) of the growth medium ideal for healthy nutrient absorbtion.
    Key
  • Sandy to Clay
    The soil texture this plant prefers for optimal growth.
    Key
Cold & Heat
  • 8
    Zone 8
    The USDA Hardiness scale assigns plants a number from 1 to 12 representing the minimum temperature a plant can survive.
    Key
    0< -53.9ºC< -65ºF
    1-51.1ºC-60ºF
    2-45.6ºC-50F
    3-40ºC-40ºF
    4-34.4ºC-30ºF
    5-28.9ºC-20ºF
    6-23.3ºC-10ºF
    7-17.8ºC0ºF
    8-12.2C10ºF
    9-6.7ºC20ºF
    10-1.1ºC30ºF
    114.4ºC40ºF
    12> 10ºC> 5ºF
  • ?
    Unknown
    The AHS Heat scale assigns plants a number from 1 to 12 representing the number of days per year a plant requires a temperature exceeding 30ºC (86ºF).
    Key
    11
    21 - 7
    38 - 14
    415 - 30
    531 - 45
    646 - 60
    761 - 90
    891 - 120
    9121 - 150
    10151 - 180
    11181 - 210
    12181 - 210
Ceratophyllum demersum has 0 edible uses listed
Ceratophyllum demersum has 0 medicinal uses listed

Uses

Edible uses

Notes

Leaves[1][2]. No further details are given.

Leaves

Unknown use

Material uses

There are no material uses listed for Ceratophyllum demersum.

Medicinal uses(Warning!)

The plant is a cooling antiperiodic[3]. It is useful in the treatment of biliousness and scorpion stings[3].

Unknown part

Antiperiodic
Stings

Ecology

Ecosystem niche/layer

Ecological Functions

Nothing listed.

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - we have no details on this species but would suggest sowing the seed as soon as it is ripe in early autumn in a greenhouse with the pot immersed in water. It is likely that the seed will quickly lose viability if allowed to dry out so if it is stored it should be kept cool in a container of water and then be sown in late winter. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in a tray of water in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.

Cuttings in the growing season root easily[4].

Plants propagate themselves naturally when scaly young shoots or winter buds separate from the main plant[4].

Practical Plants is currently lacking information on propagation instructions of Ceratophyllum demersum. Help us fill in the blanks! Edit this page to add your knowledge.



Cultivation

Prefers a sandy medium rich in decaying organic matter in full sun, but it tolerates shade better than most submerged aquatic plants[4].

A good pond oxygenator, it usually grows submerged in the water but is sometimes found floating on the surface[5][4]. This species belongs to one of only two known dicot genera where pollination taks place under water. The anthers of male flowers break off the plant and float to the surface where they release their pollen grains. These then sink under the water to fertilize the female flowers[6]. This species, however, more commonly reproduces asexually[6]. In some parts of the world bilharzia-carrying snails and malaria-carrying mosquito larvae shelter in the leaves of plants of this genus. The plants can also grow so vigorously as to choke waterways, though they also provide good shelter for young fish[6].

The plant is very brittle[5].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Ceratophyllum demersum. Do you know of an interaction that should be listed here? edit this page to add it.

Polycultures & Guilds

There are no polycultures listed which include Ceratophyllum demersum.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Ceratophyllum demersum
Genus
Ceratophyllum
Family
Ceratophyllaceae
Imported References
Edible uses
[1][2]
Medicinal uses
[3]
Material uses & Functions
Botanic
[7][8]
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Provides forage for
Provides shelter for
Environment
Hardiness Zone
8
Heat Zone
?
Water
aquatic
Sun
full sun
Shade
light shade
Soil PH
acid, neutral, alkaline
Soil Texture
sandy, loamy, clay
Soil Water Retention
Environmental Tolerances
    Ecosystems
    Native Climate Zones
    None listed.
    Adapted Climate Zones
    None listed.
    Native Geographical Range
    None listed.
    Native Environment
    None listed.
    Ecosystem Niche
    None listed.
    Root Zone Tendancy
    None listed.
    Life
    Deciduous or Evergreen
    ?
    Herbaceous or Woody
    ?
    Life Cycle
    perennial
    Growth Rate
    vigorous
    Mature Size
    1 x meters
    Fertility
    ?
    Pollinators
    Water
    Flower Colour
    ?
    Flower Type
    monoecious

    "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki. "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki. "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki.

    "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki. "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki.


    "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki.

    "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki.

    "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki., "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki., "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki. "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki., "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki., "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki.

    "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki.






    References

    1. ? 1.01.1 Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing (1976-00-00)
    2. ? 2.02.1 Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books ISBN 3874292169 (1984-00-00)
    3. ? 3.03.13.2 Chopra. R. N., Nayar. S. L. and Chopra. I. C. Glossary of Indian Medicinal Plants (Including the Supplement). Council of Scientific and Industrial Research, New Delhi. (1986-00-00)
    4. ? 4.04.14.24.3 Brickell. C. The RHS Gardener's Encyclopedia of Plants and Flowers Dorling Kindersley Publishers Ltd. ISBN 0-86318-386-7 (1990-00-00)
    5. ? 5.05.1 F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
    6. ? 6.06.16.2 Diggs, Jnr. G.M.; Lipscomb. B. L. & O'Kennon. R. J [Illustrated Flora of North Central Texas] Botanical Research Institute, Texas. (1999-00-00)
    7. ? Clapham, Tootin and Warburg. Flora of the British Isles. Cambridge University Press (1962-00-00)
    8. ? Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)

    "image:Ceratophyllum demersum var.demersum..JPG|248px" cannot be used as a page name in this wiki.

    Retrieved from "https://practicalplants.org/w/index.php?title=Ceratophyllum_demersum&oldid=76107"
    Facts about "Ceratophyllum demersum"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyCeratophyllaceae +
    Belongs to genusCeratophyllum +
    Has binomial nameCeratophyllum demersum +
    Has common nameHornwort +
    Has drought toleranceIntolerant +
    Has edible partLeaves +
    Has edible useUnknown use +
    Has fertility typeWater +
    Has flowers of typeMonoecious +
    Has growth rateVigorous +
    Has hardiness zone8 +
    Has imageCeratophyllum demersum var.demersum..JPG +
    Has lifecycle typePerennial +
    Has mature height1 +
    Has medicinal partUnknown part +
    Has medicinal useAntiperiodic + and Stings +
    Has primary imageCeratophyllum demersum var.demersum..JPG +
    Has search nameceratophyllum demersum + and hornwort +
    Has shade toleranceLight shade +
    Has soil ph preferenceAcid +, Neutral + and Alkaline +
    Has soil texture preferenceSandy +, Loamy + and Clay +
    Has sun preferenceFull sun +
    Has taxonomic rankSpecies +
    Has taxonomy nameCeratophyllum demersum +
    Has water requirementsaquatic +
    Is taxonomy typeSpecies +
    PFAF cultivation notes migratedNo +
    PFAF edible use notes migratedNo +
    PFAF material use notes migratedYes +
    PFAF medicinal use notes migratedNo +
    PFAF propagation notes migratedNo +
    PFAF toxicity notes migratedYes +
    Tolerates nutritionally poor soilNo +
    Uses mature size measurement unitMeters +
    Has subobjectThis property is a special property in this wiki.Ceratophyllum demersum +, Ceratophyllum demersum + and Ceratophyllum demersum +