This is an archived copy of this article, recovered after a server failure in January 2022.

Some links may be broken, and editing is disabled. We are working to bring back full functionality.

Amaranthus torreyi

an annual member of the Amaranthus genus in the family Amaranthaceae.

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
  • no shade
    No shade
    The amount of shade a plant will tolerate without adverse health affects.
    Key
Water
  • Water Requirementsmoderate
    Moderate
    The amount of water a plant needs for healthy growth, relative to other plants.
    Key
Soil
  • acid,neutral,alkaline
    Acid to Alkaline
    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
  • ?
    Unknown
    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
Amaranthus torreyi has 0 edible uses listed
Amaranthus torreyi has 0 material uses listed

Uses

Toxic parts

No members of this genus are known to be poisonous, but when grown on nitrogen-rich soils they are known to concentrate nitrates in the leaves. This is especially noticeable on land where chemical fertilizers are used. Nitrates are implicated in stomach cancers, blue babies and some other health problems. It is inadvisable, therefore, to eat this plant if it is grown inorganically.

Edible uses

Notes

Leaves - cooked[1][2][3][4]. Used as a spinach. Seed - cooked[1][2][3][4]. Very small and fiddly, but the seed is very nutritious. The seed can be cooked whole, and becomes very gelatinous like this, but it is rather difficult to crush all of the small seeds in the mouth and thus some of the seed will pass right through the digestive system without being assimilated[K].

Leaves

Unknown use

Seed

Unknown use

Material uses

Yellow and green dyes can be obtained from the whole plant[5].

Unknown part

Dye

Medicinal uses(Warning!)

There are no medicinal uses listed for Amaranthus torreyi.

Ecology

Ecosystem niche/layer

Ecological Functions

Nothing listed.

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - sow late spring in situ. An earlier sowing can be made in a greenhouse and the plants put out after the last expected frosts. Germination is usually rapid and good if the soil is warm[6]. A drop in temperature overnight aids germination[6]. Cuttings of growing plants root easily[7].

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



Cultivation

We have very little information on this species but it should succeed as a spring-sown annual in Britain. The following notes are based on the general needs of the genus.

Prefers a well-drained fertile soil in a sunny position[8]. Requires a hot sheltered position if it is to do well[K]. Plants should not be given inorganic fertilizers, see notes above on toxicity.

Most if not all members of this genus photosynthesize by a more efficient method than most plants. Called the 'C4 carbon-fixation pathway', this process is particularly efficient at high temperatures, in bright sunlight and under dry conditions[9].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Amaranthus torreyi. 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 Amaranthus torreyi.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Amaranthus torreyi
Genus
Amaranthus
Family
Amaranthaceae
Imported References
Edible uses
[1][2][3][4]
Medicinal uses
Material uses & Functions
[5]
Botanic
[10][11]
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
?
Heat Zone
?
Water
moderate
Sun
full sun
Shade
no shade
Soil PH
acid, neutral, alkaline
Soil Texture
sandy, loamy, clay
Soil Water Retention
well drained
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
    annual
    Growth Rate
    ?
    Mature Size
    0.75 x meters
    Fertility
    self fertile
    Pollinators
    Wind, Self
    Flower Colour
    ?
    Flower Type
    monoecious











    References

    1. ? 1.01.11.2 Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim (1959-00-00)
    2. ? 2.02.12.2 Harrington. H. D. Edible Native Plants of the Rocky Mountains. University of New Mexico Press ISBN 0-8623-0343-9 (1967-00-00)
    3. ? 3.03.13.2 Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing (1976-00-00)
    4. ? 4.04.14.2 Yanovsky. E. Food Plants of the N. American Indians. Publication no. 237. U.S. Depf of Agriculture. ()
    5. ? 5.05.1 Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. ISBN 0-02-544950-8 (1974-00-00)
    6. ? 6.06.1 Rice. G. (Editor) Growing from Seed. Volume 1. Thompson and Morgan. (1987-00-00)
    7. ? Larkcom J. Oriental Vegetables John Murray ISBN 0-7195-4781-4 (1991-00-00)
    8. ? Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    9. ? Popenoe. H. et al Lost Crops of the Incas National Academy Press ISBN 0-309-04264-X (1990-00-00)
    10. ? Fernald. M. L. Gray's Manual of Botany. American Book Co. (1950-00-00)
    11. ? Britton. N. L. Brown. A. An Illustrated Flora of the Northern United States and Canada Dover Publications. New York. ISBN 0-486-22642-5 (1970-00-00)


    Retrieved from "http://practicalplants.org/w/index.php?title=Amaranthus_torreyi&oldid=75002"
    Facts about "Amaranthus torreyi"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyAmaranthaceae +
    Belongs to genusAmaranthus +
    Has drought toleranceIntolerant +
    Has edible partLeaves + and Seeds +
    Has edible useUnknown use +
    Has fertility typeSelf fertile +, Wind + and Self +
    Has flowers of typeMonoecious +
    Has lifecycle typeAnnual +
    Has material partUnknown part +
    Has material useDye +
    Has mature height0.75 +
    Has search nameamaranthus torreyi + and x +
    Has shade toleranceNo shade +
    Has soil ph preferenceAcid +, Neutral + and Alkaline +
    Has soil teclayture preferenceClay +
    Has soil teloamyture preferenceLoamy +
    Has soil tesandyture preferenceSandy +
    Has soil water retention preferenceWell drained +
    Has sun preferenceFull sun +
    Has taxonomy nameAmaranthus torreyi +
    Has water requirementsmoderate +
    Is taxonomy typeSpecies +
    Tolerates nutritionally poor soilNo +
    Uses mature size measurement unitMeters +