Cyperus pseudothyrsiflorus explained

Cyperus pseudothyrsiflorus is a plant species native to Nuevo León, New Mexico and Texas,[1] [2] [3] It occurs in cultivated fields and other disturbed areas at elevations of less than 1000 m (3400 feet).[4]

Cyperus pseudothyrsiflorus is a perennial herb spreading by underground rhizomes. Stems are triangular in cross-section, up to 40 cm (16 inches) tall.[4]

It is a member of Cyperus, subgenus Cyperus, section Umbellati.[5] It was first formally described as a new variety of C. uniflorus by Georg Kükenthal in 1937,[6] but was promoted to an independent species in 1997.[5] It is very similar to C. uniflorus,[5] [7] which is now known as C. retroflexus.[5]

See also

Notes and References

  1. Web site: Cyperus pseudothyrsiflorus (Kük.) R.Carter & S.D.Jones Plants of the World Online Kew Science . 2024-09-25 . Plants of the World Online . en.
  2. http://bonap.net/MapGallery/County/Cyperus%20pseudothyrsiflorus.png Biota of North America Program, 2013 county distribution map
  3. https://www.biodiversitylibrary.org/page/33311033#page/346/mode/1up Carter, James Richard & Jones, Standley D. 1998. Rhodora 99(900): 330.
  4. Web site: Cyperus pseudothyrsiflorus in Flora of North America @ efloras.org . 2024-09-25 . www.efloras.org.
  5. https://www.biodiversitylibrary.org/page/33311033#page/346/mode/1up Carter, James Richard & Jones, Standley D. 1997. Notes on the Cyperus retroflexus complex (Cyperaceae) with three nomenclatural proposals. Rhodora 99(900): 319-334.
  6. Engler, Heinrich Gustav Adolf. Das Pflanzenreich IV. 20(Heft 101): 521. 1936.
  7. Donovan Stewart Correll & Marshall Conring Johnston. 1970. Manual of the Vascular Plants of Texas. Texas Research Foundation.