Difference between revisions of "Dichanthelium oligosanthes"

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===Seed bank and germination===
 
===Seed bank and germination===
 
===Fire ecology=== <!--Fire tolerance, fire dependence, adaptive fire responses-->
 
===Fire ecology=== <!--Fire tolerance, fire dependence, adaptive fire responses-->
It responds positively to fire. It increased in distribution and abundance following an early dormant-season fire.<ref name="Taft 2003"/> Dichanthelium oligosanthes var. scribnerianum found in uplands and lowlands responded positively to summer burns but negatively to spring burns in the long run (more than 10 years). However, D. oligosanthes found in the canopy cover declined with both burns.<ref name="Towne et al 2008">Towne, E. G. and K. E. Kemp (2008). "Long-term response patterns of tallgrass prairie to frequent summer burning." Rangeland Ecology & Management 61: 509-520.</ref>
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It responds positively to fire. It increased in distribution and abundance following an early dormant-season fire.<ref name="Taft 2003"/> ''Dichanthelium oligosanthes'' var. ''scribnerianum'' found in uplands and lowlands responded positively to summer burns but negatively to spring burns in the long run (more than 10 years). However, ''D. oligosanthes'' found in the canopy cover declined with both burns.<ref name="Towne et al 2008">Towne, E. G. and K. E. Kemp (2008). "Long-term response patterns of tallgrass prairie to frequent summer burning." Rangeland Ecology & Management 61: 509-520.</ref>
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===Pollination===  
 
===Pollination===  
 
===Use by animals=== <!--Herbivory, granivory, insect hosting, etc.-->
 
===Use by animals=== <!--Herbivory, granivory, insect hosting, etc.-->

Revision as of 13:08, 13 July 2015

Dichanthelium oligosanthes
Insert.jpg
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Liliopsida – Monocotyledons
Order: Cyperales
Family: Poaceae ⁄ Gramineae
Genus: Dichanthelium
Species: D. oligosanthes
Binomial name
Dichanthelium oligosanthes
(Schult.) Gould
DICH OLIG dist.jpg
Natural range of Dichanthelium oligosanthes from USDA NRCS Plants Database.

Description

Common Name: Heller's rosette grass

Synonym Name: Panicum oligosanthes Schult.

Dichanthelium oligosanthes is a perennial graminoid. It tends to form dense tussocks of many stems (FSU Herbarium).

Distribution

Ecology

Habitat

It can live in Foard and Lawton soils, which are both grassland soils.[1] It can be found in undisturbed areas.[2] D. oligosanthes var. scribnerianum can tolerate hot summers, cold winters, minimal precipitation (826 mm per year), and moderately strong surface winds.[3] It is commonly found in open woodlands.[4] It can be found in tallgrass prairie.[3]

Phenology

It flowers from early to mid season.[5]

Flowering has been observed in May, while fruiting has been observed in March, May, and June (FSU Herbarium).

Seed dispersal

Fire seems to stimulate the seed bank.[4]

Seed bank and germination

Fire ecology

It responds positively to fire. It increased in distribution and abundance following an early dormant-season fire.[4] Dichanthelium oligosanthes var. scribnerianum found in uplands and lowlands responded positively to summer burns but negatively to spring burns in the long run (more than 10 years). However, D. oligosanthes found in the canopy cover declined with both burns.[3]

Pollination

Use by animals

Diseases and parasites

Conservation and Management

Cultivation and restoration

Photo Gallery

References and notes

Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014.

Collectors: L.C. Anderson, Wilson Baker, R. Kral, M. Nee, E. D. Cappel, Riedeman, H. L. Blomquist, Harry E. Ahles, D. S. Correll, Duane Isely, S L Welsh, Dwight Isely, S. W. Leonard, A. E. Radford, H. R. Reed, T. MacClendon, K. MacClendon, Robert F. Thorne, James R. Burkhalter, R.K. Godfrey, Kurz, A. H. Curtiss, A. P. Anderson, Pat Howell, Brenda Thomas, George Wilder, F. Lyle Wynd, C. H. Mueller, Robert L. Lazor, and Raymond Athey.

States and Counties: Florida: Calhoun, Duval, Escambia, Gadsden, Franklin, Jackson, Jefferson, Leon, Liberty, Okaloosa, and Suwannee. Georgia: Seminole. Kentucky: Caldwell, Livingston, and Logan. Louisiana: Ouachita. Mississippi: Pearl River. North Carolina: Moore, Cumberland, and Pender. South Carolina: Orangeburg. Texas: Bexar, Freestone, Tarrant, and Van Zandt. Virginia: Giles. Wisconsin: Richland.

Other Countries: Mexico

  1. Leis, S. A., D. M. Engle, et al. (2005). "Effects of short- and long-term disturbance resulting from military maneuvers on vegetation and soils in a mixed prairie area." Environmental Management 36: 849-861.
  2. Jutila, H. M. and J. B. Grace (2002). "Effects of disturbance on germination and seedling establishment in a coastal prairie grassland: a test of the competitive release hypothesis." Journal of Ecology 90: 291-302; Towne, E. G. and K. E. Kemp (2008). "Long-term response patterns of tallgrass prairie to frequent summer burning." Rangeland Ecology & Management 61: 509-520.
  3. 3.0 3.1 3.2 Towne, E. G. and K. E. Kemp (2008). "Long-term response patterns of tallgrass prairie to frequent summer burning." Rangeland Ecology & Management 61: 509-520.
  4. 4.0 4.1 4.2 Taft, J. B. (2003). "Fire effects on community structure, composition, and diversity in a dry sandstone barrens." Journal of the Torrey Botanical Society 130: 170-192.
  5. Pavlovic, N. B., S. A. Leicht-Young, et al. (2011). "Short-term effects of burn season on flowering phenology of savanna plants." Plant Ecology 212: 611-625.