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Eragrostis mexicana - (Hornem.) Link

Common Name Mexican Love Grass
Family Poaceae
USDA hardiness 7-11
Known Hazards No specific toxicity issues are known. As with all wild grains, harvesting from clean environments is important.
Habitats Typically inhabits disturbed, open terrestrial areas such as roadsides, railway lines, and near cultivated fields.
Range W. Canada to Argentina. Native to North America, especially common in the southwestern United States and Mexico. Also occurs in parts of South America and Australia.
Edibility Rating    (3 of 5)
Other Uses    (2 of 5)
Weed Potential Yes
Medicinal Rating    (2 of 5)
Care (info)
Frost Hardy Well drained soil Moist Soil Full sun
Eragrostis mexicana Mexican Love Grass


Harry Rose from South West Rocks, Australia. Creative Commons Attribution 2.0
Eragrostis mexicana Mexican Love Grass
Harry Rose from South West Rocks, Australia. Creative Commons Attribution 2.0

 

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Summary

Mexican love grass is another highly productive grain-producing species adapted to warm climates. It has a long history of use as a staple food in parts of North America and demonstrates the potential of small-seeded grasses as resilient food crops in dry environments.


Physical Characteristics

 icon of manicon of flower
Eragrostis mexicana is a ANNUAL growing to 0.8 m (2ft 7in) by 0.2 m (0ft 8in) at a fast rate.
See above for USDA hardiness. It is hardy to UK zone 8. The flowers are pollinated by Wind.
It is noted for attracting wildlife.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil and can tolerate drought.

UK Hardiness Map US Hardiness Map

Synonyms

Poa mexicana Hornem.

Plant Habitats

Edible Uses

The grains are edible and nutritious, suitable for use as a staple when abundant [2-3]. Edible Uses & Rating: This species ranks as a high-value wild grain. It is particularly notable for its historical role as a staple food and its reliability in arid climates [2-3]. Taste, Processing & Kitchen Notes: Grains are small but plentiful and similar in use to other Eragrostis species. They can be toasted, boiled into porridge, or ground into flour. The flavor is mild and grain-like, with improved qualities when toasted. Seasonality (Phenology): Blooms in summer, with seeds maturing from late summer into autumn. Timing varies depending on rainfall and temperature. Safety & Cautions (Food Use): No specific toxicity issues are known. As with all wild grains, harvesting from clean environments is important [2-3]. Harvest & Processing Workflow: Harvest mature seed heads when dry. Seeds can be easily separated and winnowed. Processing is simple and efficient due to the plant’s natural tendency to release seeds [2-3]. Cultivar/Selection Notes: While not widely cultivated today, this species has clear potential for development as a dryland grain crop. Look-Alikes & Confusion Risks: Similar to other love grasses. Differences are subtle, but confusion is not problematic from a food perspective [2-3]. Traditional/Indigenous Use Summary: This species was an important staple for Indigenous peoples in the southwestern United States and northern Mexico, particularly along river systems where it was harvested in quantity [2-3].

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.


Eragrostis mexicana (Mexican lovegrass) is harvested from the wild for local use as food and medicine. While specific, detailed medical applications for E. mexicana are not explicitly detailed in the provided search results, it is closely related to other Eragrostis species used traditionally for digestive disorders, as diuretics, and to treat fevers. Potential Medicinal Uses Based on Related Species: While specific pharmacological data for E. mexicana is limited, studies on other plants in the Eragrostis genus indicate potential bioactive properties: Respiratory Support: Traditional systems have used Eragrostis species to alleviate bronchial congestion and act as an expectorant. Wound Healing: Extracts have been used topically as poultices to treat wounds and cuts due to potential antimicrobial properties. Fever Reduction: The roots and other parts of related grasses are utilized for their antipyretic (fever-reducing) properties. Gastrointestinal Health: Some species are used to treat colic, flatulence, and other stomach infections. Identification and Safety: Description: E. mexicana is a native grass of North America and Mexico, often found in disturbed areas. Toxicity: Generally, no hazards are known for Eragrostis pilosa, though caution is always recommended with wild herbal remedies. Note on Similar Species: Eragrostis mexicana is sometimes confused with Argemone mexicana (Mexican poppy), a completely different plant which is toxic but used for treating jaundice and malaria.

References   More on Medicinal Uses

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Other Uses

Suitable for naturalistic plantings but may appear weedy. A fine-textured grass with open, branching seed heads. Ecology & Wildlife: Provides seeds for birds and contributes to grassland ecosystems, especially in disturbed or marginal lands.

Special Uses

References   More on Other Uses

Cultivation details

Mexican love grass is a highly valuable wild cereal with historical significance and strong potential for future food systems, especially in water-limited environments. Growing Conditions: Prefers full sun and well-drained soils. Tolerant of drought and heat. Habitat & Range: Native to North America, especially common in the southwestern United States and Mexico. Also occurs in parts of South America and Australia. Size & Landscape Performance: Forms loose clumps with airy seed heads. Suitable for naturalistic plantings but may appear weedy. Cultivation (Horticulture): Easy to grow from seed. Requires minimal care and thrives in poor soils. Pests & Problems: Few pest issues. Can become invasive in disturbed habitats. Identification & Habit: A fine-textured grass with open, branching seed heads bearing numerous tiny grains. Pollinators: Wind-pollinated. Mexican love grass, Eragrostis mexicana, belongs to the grass family (Poaceae). It is a warm-season annual or short-lived perennial suited to USDA Zones 7–11, typically growing 30–100 cm tall with a loose, branching form.

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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Fahrenheit:

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Plant Propagation

By seed, with prolific reproduction.

Other Names

If available other names are mentioned here

Mexican love grass, Eragrostis mexicana. Poa mexicana.

Native Range

US. USA. Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, British Columbia, California, Chile North, Colombia, Colorado, Costa Rica, Ecuador, El Salvador, Galápagos, Guatemala, Honduras, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Nevada, New Mexico, Nicaragua, Oklahoma, Oregon, Panamá, Peru, Texas, Uruguay, Utah, Venezuela, Washington

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.

Moderate to high, depending on conditions.

Conservation Status

IUCN Red List of Threatened Plants Status : Not listed.

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Eragrostis carolinianaTufted lovegrassAnnual0.5 0-0  LMHNDM10 
Eragrostis cilianensisGray Love GrassAnnual0.8 6-11 FLMHNDM322
Eragrostis curvulaWeeping Love GrassPerennial1.2 6-9  LMHNM103
Eragrostis pilosaSoft Love Grass, Indian lovegrassAnnual0.6 6-9  LMNM110
Eragrostis tefTefAnnual1.0 8-11  LMHNDM30 

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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Author

(Hornem.) Link

Botanical References

Links / References

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