Difference between revisions of "Dichanthelium villosissimum"

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(Taxonomic Notes)
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==Taxonomic Notes==
 
==Taxonomic Notes==
Variation(s): ''Dichanthelium villosissimum'' var. ''villosissimum''; ''D. villosissimum'' var. ''praecocius''<ref name="Weakley 2015"/><ref name="USDA"/>
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Variation(s): ''Dichanthelium villosissimum'' var. ''villosissimum''; ''D. villosissimum'' var. ''praecocius''<ref name="Weakley 2015"/><ref name="USDA"/><br><br>
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Synonym(s):''D. acuminatum'' var. ''vilosum''; ''D. lanuginosum'' var. ''villosissimum''; ''D. ovale'' ssp. ''pseudopubescens''; ''D. villosissimum'' var. ''pseudopubescens''; ''Panicum acuminatum'' var. ''villosissimum''; ''P. acuminatum'' var. ''villosum''; ''P. nitidum'' var. ''villosum''; ''P. ovale'' var. ''pseudopubescens''; ''P. ovale'' var. ''villosum''; ''P. pseudopubescens''; ''P. villosissimum''; ''P. villosissimum'' var. ''pseudopubescens''<ref name="USDA"/>
  
 
==Description==  
 
==Description==  

Revision as of 14:23, 7 December 2017

Dichanthelium villosissimum
Dicanthelium villosissimum IWF.jpg
Photo by Illinois Wildflowers
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Moncots
Order: Poales
Family: Poaceae - Grasses
Genus: Dichanthelium
Species: D. villosissimum
Binomial name
Dichanthelium villosissimum
(Nash)
DICH VILL DIST.JPG
Natural range of Dichanthelium villosissimum from USDA NRCS Plants Database.

Common Name(s): white-haired witchgrass, whitehair rosette grass[1][2], hairy panic grass[3]

Taxonomic Notes

Variation(s): Dichanthelium villosissimum var. villosissimum; D. villosissimum var. praecocius[1][2]

Synonym(s):D. acuminatum var. vilosum; D. lanuginosum var. villosissimum; D. ovale ssp. pseudopubescens; D. villosissimum var. pseudopubescens; Panicum acuminatum var. villosissimum; P. acuminatum var. villosum; P. nitidum var. villosum; P. ovale var. pseudopubescens; P. ovale var. villosum; P. pseudopubescens; P. villosissimum; P. villosissimum var. pseudopubescens[2]

Description

D. villosissimum is a monoecious perennial graminoid[2] that can be found growing in small clumps.[4]

Distribution

This species is found from Maine and Massachusetts south to Florida and westward to Texas, the Dakota's, Nebraska, Kansas, and Oklahoma. It is also recorded in Oregon and California as well as eastern Canada and parts of Mexico and Mesoamerica.[1][2]

Ecology

Habitat

D. villosissimum is found in dry sandy soils of open woodlands and prairies.[1] In a study comparing mature dry sand prairies, 60 yr and 30 yr successional fields, frequency and average cover decreased with decreasing length of establishment. This suggests it colonizes slowly compared to other species.[3]

Phenology

Flowering and fruiting occur between April and September.[1]

Seed bank and germination

Densities of seeds in the seed banks of Indiana oak savannas averaged a density of 32 seeds per square meter. In secondary dunes, densities had a mean of 45 seeds per square meter.[5]

Fire ecology

Fire was shown to increase the frequency of D. villosissimum and other C3 plants in Illinois dry sandstone barrens and Florida longleaf pine sandhills, especially where wiregrass is dominant.[6][7]

Conservation and Management

Cultivation and restoration

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 1.3 1.4 Weakley A. S.(2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC: University of North Carolina Herbarium.
  2. 2.0 2.1 2.2 2.3 2.4 USDA, NRCS. (2016). The PLANTS Database (http://plants.usda.gov, 7 December 2017). National Plant Data Team, Greensboro, NC 27401-4901 USA.
  3. 3.0 3.1 McClain W. E., Schwegman J. E., Strole T. A., Phillippee L. R., and Ebinger J. E. (2008). Floristic study of sand prairie-scrub oak nature preserve, Mason County, Illinois. Castanea 73(1):29-39
  4. McClain W. E., Phillippe L. R., and Ebinger J. E. (2005). Floristic assessment of the Henry Allan Gleason Nature Preserve, Mason County, Illinois. Castanea 70(2):146-154.
  5. Leicht-Young S. A., Pavlovic N. B., Grundel R., and Frohnapple K. (2009). A comparison of seed banks across a sand dune successional gradient at Lake Michigan dunes (Indiana, USA).
  6. Taft J. B. (2003). Fire effects on community structure, composition, and diversity in a dry sandstone barrens. Journal of the Torrey Botanical Society 130(3):170-192.
  7. Rodgers H. L. and Provencher L. (1999). Analysis of longleaf pine sandhill vegetation in Northwest Florida. Castanea 64(2):138-162.