Carex adusta

Carex adusta
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Carex
Subgenus: Carex subg. Vignea
Section: Carex sect. Ovales
Species:
C. adusta
Binomial name
Carex adusta
Synonyms
List
    • Carex mirabilis var. adusta (Boott) Prov.
    • Carex adusta var. glomerata L.H.Bailey
    • Carex albolutescens var. glomerata Olney ex L.H.Bailey
    • Carex pinguis L.H.Bailey
Dried seedhead

Carex adusta, commonly known as the lesser brown sedge,[1] swarthy sedge,[2] browned sedge,[3] or Carex brûlé,[4] is a species of sedge (Carex) in the section Ovales. First described scientifically in 1839 by Francis Boott, Adusta is Latin for "burnt," probably referring to the color.

Description

Carex adusta is a densely tuft-forming, perennial, rhizomatous, grass-like plant growing up to 32 inches in height. Leaves are simple and alternate, and are linear in shape.[5] The plants have densely clustered culms that grow 2.5–8 cm (1.0–3.1 in) high, and leaves measuring 7–25 cm (2.8–9.8 in) long by 2–3.5 mm wide.[3] Inflorescence consists of up to 15 spikes, clustered together.[6] The fruit is an obovate to elliptic achene.[4]

Distribution and habitat

This species is found in Canada and the northeastern United States, where it grows in dry, acidic, sandy soils,[7][8] woodlands, road beds and disturbed sites.[9]

References

  1. ^ Johnson T. (1998). CRC Ethnobotany Desk Reference. CRC Press. p. 151. ISBN 978-0-8493-1187-1.
  2. ^ "Carex adusta (swarthy sedge): Go Botany". gobotany.nativeplanttrust.org. Retrieved 2025-02-27.
  3. ^ a b Leighton AL. (2012). Sedges (Carex) of Saskatchewan. Flora of Saskatchewan. Vol. Fascicle 3. Regina, Canada: Nature Saskatchewan. p. 60. ISBN 978-0-921104-29-2.
  4. ^ a b "Carex adusta in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2025-02-27.
  5. ^ "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org. Retrieved 2025-02-27.
  6. ^ "Maine Natural Areas Program Rare Plant Fact Sheet for Carex adusta". www.maine.gov. Retrieved 2025-02-27.
  7. ^ Kartesz, John T. (2014). "Carex adusta". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). Retrieved 15 April 2019.
  8. ^ "Carex adusta Boott in W. J. Hooker". Flora of North America. www.eFloas.org. Retrieved 2014-12-19.
  9. ^ "Carex adusta (swarthy sedge): Go Botany". gobotany.nativeplanttrust.org. Retrieved 2025-02-27.
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