Difference between revisions of "Xyris curtissii"

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==Description== <!-- Basic life history facts such as annual/perrenial, monoecious/dioecious, root morphology, seed type, etc. -->
 
==Description== <!-- Basic life history facts such as annual/perrenial, monoecious/dioecious, root morphology, seed type, etc. -->
''Xyris curtissii'' is a monoecious perennial forb/herb.<ref name="USDA"/> However there is some suggestions that ''X. curtissii'' by be annual in northern portions of its range while individuals in the southern parts are biennial or perennial.<ref name="Kral 1960"/> It has linear leaves 5-10 cm long and 2-4 mm wide and its sheath occupies <sup>1</sup>/<sub>3</sub> to <sup>1</sup>/<sub>2</sub> the length of the straw-colored tawny leaves. Seeds are ellipsoid and around 0.4 mm long.<ref name="Malme 1937">Malme GOK (1937) Xyridacea. North American Flora 19(1):3-15.</ref>
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''Xyris curtissii'' is a monoecious perennial forb/herb.<ref name="USDA"/> However there are some suggestions that ''X. curtissii'' may be annual in northern portions of its range while individuals in the southern parts are biennial or perennial.<ref name="Kral 1960"/> It has linear leaves 5-10 cm long and 2-4 mm wide and its sheath occupies <sup>1</sup>/<sub>3</sub> to <sup>1</sup>/<sub>2</sub> the length of the straw-colored tawny leaves. Seeds are ellipsoid and around 0.4 mm long.<ref name="Malme 1937">Malme GOK (1937) Xyridacea. North American Flora 19(1):3-15.</ref>
  
 
==Distribution==
 
==Distribution==

Revision as of 14:25, 30 June 2021

Xyris difformis
Xyris difformis WF.jpg
Photo by Robert L. Stone hosted at Wildflowers.org
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Moncots
Order: Commelinales
Family: Xyridaceae
Genus: Xyris
Species: X. curtissii
Binomial name
Xyris curtissii
Kunth
XYRI CURT DIST.JPG
Natural range of Xyris curtissii from USDA NRCS Plants Database.

Common Name: Curtiss's yellow-eyed grass[1][2]

Taxonomic Notes

Synonyms: X. difformis Chapman var. curtissii; X. bayardii Fernald; X. neglecta.[3]

Description

Xyris curtissii is a monoecious perennial forb/herb.[2] However there are some suggestions that X. curtissii may be annual in northern portions of its range while individuals in the southern parts are biennial or perennial.[4] It has linear leaves 5-10 cm long and 2-4 mm wide and its sheath occupies 1/3 to 1/2 the length of the straw-colored tawny leaves. Seeds are ellipsoid and around 0.4 mm long.[5]

Distribution

This species occurs from southeastern Virginia, south to northeastern Florida and westward to southern Arkansas and east-central Texas. Disjunct populations are found in southern New Jersey and Central America.[1]

Ecology

Habitat

X. curtissii occurs on moist savannas, pine woodlands, pine flatwoods, boggy seepage slopes, river banks, and wet depression prairies.[1][4][6][7] It is also found in disturbed areas including wet open ditches, powerline corridors, and dam margins.[7] Associated species: Rhynchospora spp., Juncus spp., Drosera spp., and Hypericum.[7]

Phenology

In the southeastern and mid-Atlantic United States, flowering occurs from July through August.[1]

Conservation, cultivation, and restoration

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 1.3 Weakley AS (2015) Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC: University of North Carolina Herbarium.
  2. 2.0 2.1 USDA NRCS (2016) The PLANTS Database (http://plants.usda.gov, 07 February 2018). National Plant Data Team, Greensboro, NC 27401-4901 USA.
  3. Weakley, A.S. 2015. Flora of the southern and mid-atlantic states. Working Draf of 21 May 2015. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  4. 4.0 4.1 Kral R (1960) The genus Xyris in Florida. Rhodora 62(743):295-319.
  5. Malme GOK (1937) Xyridacea. North American Flora 19(1):3-15.
  6. Carr SC, Robertson KM, Peet RK (2010) A vegetation classification of fire-dependent pinelands of Florida. Castanea 75(2):153-189.
  7. 7.0 7.1 7.2 Florida State University Herbarium Database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2021. Collectors: Loran C. Anderson, R. A. Davidson, R.K. Godfrey, and R. F. Thorne. States and counties: Florida: Franklin, Gadsden, Jackson, Liberty, Nassau, and Santa Rosa.