Hairy woolly grass (Erioneuron pilosum, J.K.Small, Fl. S.E. U.S.: 144 (1903))

Family: Poaceae

Author: (Buckley) Nash

Bibliography: J.K.Small, Fl. S.E. U.S.: 144 (1903)

Year: 1903

Status: accepted

Rank: species

Genus: Erioneuron

Vegetable: False

Observations: WC. & C. U.S.A. to Mexico, Bolivia to Argentina

Description

Hairy woolly grass, scientifically known as Erioneuron pilosum, is a resilient and intriguing species within the Poaceae family. This grass is notable for its distinctive hairy appearance, which is reflected in its common name. The presence of small, woolly hairs covering its leaves and stems gives it a unique texture and appearance that distinguishes it from other grasses.

The species was documented by J.K. Small in his work, “Flora of the Southeastern United States” in 1903, highlighting its significance within the botanical community. The authoritative name attribution, provided by Nash with contributions from Buckley, further underscores the plant’s historical recognition and botanical classification.

Hairy woolly grass thrives across a diverse range of habitats, extending from the western and central regions of the United States down through Mexico, and reaching as far as Bolivia and Argentina. Its widespread distribution indicates a high degree of adaptability to various climatic conditions and soil types, which contributes to its survival and proliferation in different environments.

As part of the extensive Poaceae family, Erioneuron pilosum shares many characteristics typical of grasses, yet its unique physical traits and broad geographical range make it a species of particular interest to botanists and ecologists alike. The plant’s adaptation strategies, ecological roles, and potential uses in landscaping and conservation efforts continue to be areas ripe for further exploration and study.

Common Names

Eng: hairy woolly grass, hairy-tridens
En: Hairy woolly grass, Hairy-tridens, Hairy woollygrass, HAIRY TRIDENS

Synonyms

• Erioneuron avenaceum var. kurtzianum ((Parodi) Anton)
• Triodia acuminata ((Munro ex A.Gray) Benth. ex Vasey)
• Sieglingia argentina (Kuntze)
• Erioneuron avenaceum var. pygmaeum ((Parodi) Anton)
• Sieglingia pilosa ((Buckley) Nash)
• Erioneuron pilosum var. aristiglume ((Caro) E.A.Sánchez)
• Erioneuron avenaceum var. longearistatum ((Kurtz) Beetle)
• Triodia pilosa ((Buckley) Merr.)
• Tridens avenaceus var. pygmaeus (Parodi)
• Tridens avenaceus var. longiglumis (Parodi)
• Tridens avenaceus var. kurtzianus (Parodi)
• Erioneuron pilosum var. parodianum (E.A.Sánchez)
• Dasyochloa kurtziana ((Parodi) Caro)
• Dasyochloa argentina var. parodiana ((E.A.Sánchez) Caro)
• Dasyochloa argentina var. aristiglumis (Caro)
• Tridens pilosus var. argentinus ((Kuntze) Parodi)
• Tridens pilosus var. mendocinus (Parodi)
• Dasyochloa argentina ((Kuntze) Caro)
• Triodia avenacea var. longearistata (Kurtz)
• Erioneuron pilosum var. argentinum ((Kuntze) Nicora)
• Erioneuron pilosum var. longearistatum ((Kurtz) Anton)
• Erioneuron pilosum var. mendocinum ((Parodi) Nicora)
• Triodia argentina ((Kuntze) K.Schum.)
• Triodia avenacea var. pygmaea (Hack. ex R.E.Fr.)
• Dasyochloa longiglumis ((Parodi) Caro)
• Erioneuron avenaceum var. longiglume ((Parodi) Anton)
• Dasyochloa pygmaea ((Parodi) Caro)
• Tricuspis acuminata (Munro ex A.Gray)
• Sieglingia acuminata ((Munro ex A.Gray) Kuntze)

Distribution

• Argentina Northeast (native)
• Argentina Northwest (native)
• Argentina South (native)
• Arizona (native)
• Bolivia (native)
• California (native)
• Colorado (native)
• Kansas (native)
• Mexico Central (native)
• Mexico Northeast (native)
• Mexico Southwest (native)
• Nevada (native)
• New Mexico (native)
• Oklahoma (native)
• Texas (native)
• Utah (native)

Additional Images

Flower

Taken Oct 23, 2022 by Trap Hers (cc-by-sa)

Leaf

Taken Oct 23, 2022 by Trap Hers (cc-by-sa)

Habit

Taken Jun 24, 2014 by EOL − Linda Jo Conn (cc-by-nc)

Taken Jun 7, 2015 by EOL − Sam Kieschnick (cc-by-nc)

Taken Jul 29, 2014 by EOL − Jesse Oetgen (cc-by-nc)

Taken Jul 29, 2014 by EOL − Jesse Oetgen (cc-by-nc)

Taken Oct 23, 2022 by Trap Hers (cc-by-sa)

© copyright of the Board of Trustees of the Royal Botanic Gardens, Kew.

Sources

• WFO (No URL)
• IPNI (No URL)
• GBIF (https://www.gbif.org/species/2702888)
• POWO (http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:95653-2)
• PlantNet (https://identify.plantnet.org/species/the-plant-list/Erioneuron pilosum (Buckley) Nash)

Specifications

Growth habit>: Graminoid

Growth