Urochloa texana

Urochloa texana
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Subfamily: Panicoideae
Genus: Urochloa
Species:
U. texana
Binomial name
Urochloa texana
(Buckley) R.D.Webster
Synonyms[2]
  • Brachiaria texana (Buckley) S.T.Blake
  • Panicum texanum Buckley

Urochloa texana, commonly known as Texas millet or Texas signalgrass,[3] is a weedy grass native to the southeastern United States[4] belonging to the Poaceae (grass) family. In addition to its native range, it is an introduced species in Palestine and northeast Australia.[2]

Description

Panicle

Urochloa texana has fibrous roots and leaves finely pubescent on both sides, with pubescent sheathes and a split sleeve. The ligules are membranous and fringed with dense trichomes. The plant forms simple inflorescences 7.0–25.0 cm (2.8–9.8 in) in length.[4]

In habit, Urochloa texana is decumbent or creeping up to 80.0 cm (31.5 in) tall. It is found commonly in areas such as cultivated areas, pastures, fields, roadsides.[4]

Distribution

This species of Urochloa is native to Texas, Alabama, Arizona, Florida, Georgia, Mississippi, North Carolina, Oklahoma, and South Carolina.[4][1]

It is an introduced species in Delaware, Maryland, and Massachusetts, as well as Palestine, New South Wales, and Queensland.[2]

Ecology

Urochloa texana is considered a crop weed.[4][5][6] The weed is especially problematic in peanut cultivation[5] as the tight, fibrous roots of the plant intertwine with the crop. This can cause peanut pods to be stripped from the plant during harvesting, and can also slow the drying process.[7]

The plant utilizes C4 carbon fixation.[8]

References

  1. 1 2 Romand-Monnier, F. (2014). "Brachiaria texana". IUCN Red List of Threatened Species. 2014 e.T44393376A44545361. doi:10.2305/IUCN.UK.2014-1.RLTS.T44393376A44545361.en.
  2. 1 2 3 "Urochloa texana (Buckley) R.D.Webster". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 20 August 2026.
  3. ↑ "Urochloa texana (Texas Millet) - FSUS". fsus.ncbg.unc.edu.
  4. 1 2 3 4 5 Bryson, Charles T.; DeFelice, Michael (2009). Weeds of the South. Athens, Georgia: University of Georgia Press. p. 423. ISBN 978-0-8203-3046-4.
  5. 1 2 Clobas-Celiz, Alexis (December 1, 2024). "Texas Panicum (Urochloa texana (Buckley) R.D.Webster) Management in South Carolina Peanut (Arachis hypogaea L.) Production". All Theses.
  6. ↑ Janak, Travis W.; Grichar, W. James (August 20, 2016). "Weed Control in Corn ( Zea mays L.) as Influenced by Preemergence Herbicides". International Journal of Agronomy. 2016: 1–9. doi:10.1155/2016/2607671.
  7. ↑ Grichar, William James; Dotray, Peter A.; Baughman, Todd A. (September 2, 2024). "Weed Control in Peanut (Arachis hypogaea L.) Using Carfentrazone Plus Pyroxasulfone Herbicide Systems". Legume Crops for Food Security - Cultivation and Benefits. Agricultural Sciences. Vol. 23. IntechOpen. doi:10.5772/intechopen.1006181. ISBN 978-0-85466-593-8 – via www.intechopen.com.
  8. ↑ VOZNESENSKAYA, ELENA V.; FRANCESCHI, VINCENT R.; CHUONG, SIMON D. X.; EDWARDS, GERALD E. (July 1, 2006). "Functional Characterization of Phosphoenolpyruvate Carboxykinase-Type C4 Leaf Anatomy: Immuno-, Cytochemical and Ultrastructural Analyses". Annals of Botany. 98 (1): 77–91. doi:10.1093/aob/mcl096. PMC 2803547. PMID 16704997 – via Silverchair.