Difference between revisions of "Dichanthelium leucothrix"
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Common name: rough panicgrass | Common name: rough panicgrass | ||
==Taxonomic notes== | ==Taxonomic notes== | ||
| + | Synonyms: ''Panicum leucothrix'' Nash; ''D. acuminatum'' ssp. ''leucothrix'' (Nash); ''P. spretum'' J.A. Schultes; ''P. acuminatum'' Swartz var. ''leucothrix'' (Nash) Lelong; ''D. acuminatum'' (Swartz) Gould & Clark var. ''implicatum'' (Scribner) Gould & Clark; ''P. spretum'' var. ''leucothrix'' (Nash) D.B. Ward | ||
==Description== | ==Description== | ||
<!-- Basic life history facts such as annual/perrenial, monoecious/dioecious, root morphology, seed type, etc. --> | <!-- Basic life history facts such as annual/perrenial, monoecious/dioecious, root morphology, seed type, etc. --> | ||
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===Habitat=== <!--Natural communities, human disturbed habitats, topography, hydrology, soils, light, fire regime requirements for removal of competition, etc.--> | ===Habitat=== <!--Natural communities, human disturbed habitats, topography, hydrology, soils, light, fire regime requirements for removal of competition, etc.--> | ||
''Dichanthelium leucothrix'' can occur in longleaf pine-wiregrass flatwoods, and cypress-gum depressions in flatwoods (FSU Herbarium). | ''Dichanthelium leucothrix'' can occur in longleaf pine-wiregrass flatwoods, and cypress-gum depressions in flatwoods (FSU Herbarium). | ||
| − | + | <!--===Phenology===--> <!--Timing off flowering, fruiting, seed dispersal, and environmental triggers. Cite PanFlora website if appropriate: http://www.gilnelson.com/PanFlora/ --> | |
| − | ===Phenology=== <!--Timing off flowering, fruiting, seed dispersal, and environmental triggers. Cite PanFlora website if appropriate: http://www.gilnelson.com/PanFlora/ --> | + | <!--===Seed dispersal===--> |
| − | ===Seed dispersal=== | + | <!--===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--> | + | <!--===Pollination===--> |
| − | ===Pollination=== | + | <!--===Use by animals===--> <!--Herbivory, granivory, insect hosting, etc.--> |
| − | ===Use by animals=== <!--Herbivory, granivory, insect hosting, etc.--> | + | <!--===Diseases and parasites===--> |
| − | ===Diseases and parasites=== | ||
==Conservation and Management== | ==Conservation and Management== | ||
==Cultivation and restoration== | ==Cultivation and restoration== | ||
Revision as of 10:23, 3 March 2016
| Dichanthelium leucothrix | |
|---|---|
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| Photo by Guy Anglin, Atlas of Florida Vascular Plants | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Magnoliophyta - Flowering plants |
| Class: | Liliopsida – Monocotyledons |
| Order: | Cyperales |
| Family: | Poaceae ⁄ Gramineae |
| Genus: | Dichanthelium |
| Species: | D. leucothrix |
| Binomial name | |
| Dichanthelium leucothrix (Nash) Freckmann | |
| |
| Natural range of Dichanthelium leucothrix from USDA NRCS Plants Database. | |
Common name: rough panicgrass
Contents
Taxonomic notes
Synonyms: Panicum leucothrix Nash; D. acuminatum ssp. leucothrix (Nash); P. spretum J.A. Schultes; P. acuminatum Swartz var. leucothrix (Nash) Lelong; D. acuminatum (Swartz) Gould & Clark var. implicatum (Scribner) Gould & Clark; P. spretum var. leucothrix (Nash) D.B. Ward
Description
Generally, for the Dichanthelium genus, they have "spikelets usually in panicles, round or nearly so in cross section, 2-flowered, terminal fertile, basal sterile, neutral or staminate. First glume usually present, 2nd glume and sterile lemma similar; fertile lemma and palea indurate without hyaline margins. Taxonomically our most difficult and least understood genus of grasses, more than 100 species an varieties are ascribed to the Carolinas by some authors. Note general descriptions for species groups (e.g., 1-4, 5-8, 9-13, and 26-62)." - Radford et al 1964.
Specifically, for the D. leucothrix species, they are "perennial with distinct basal rosettes; branching, when present, from nodes above basal rosette. Leaves basal and cauline, vernal and autumnal. Culms 3-6.5 dm tall, nodes slightly bearded, internodes glabrous or pilose. Blades to 6 cm long, 2-5 cm wide, glabrous above, setose basally, puberulent beneath, margins scaberulous, basally ciliate; sheaths sparsely pilose or glabrous, margins occasionally ciliate; ligules ciliate, 2-3 mm long. Panicle 3-6 cm long, 2.5-4 cm broad; rachis appressed pilose or glabrous, branches spreading, smoothish. Spikelets ellipsoid, 1.2-1.4 mm long; pedicels smoothish. First glume glabrous or pubescent, truncate or acute, 0.2-0.5 mm long, 2nd glume and sterile lemma pubescent, obtuse, 1.2-1.4 mm long; fertile lemma and palea 1.1-1.5 mm long. Grain not seen." - Radford et al 1964.
Distribution
Ecology
Habitat
Dichanthelium leucothrix can occur in longleaf pine-wiregrass flatwoods, and cypress-gum depressions in flatwoods (FSU Herbarium).
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: October 2015. Collectors: H.L. Blomquist and Robert K. Godfrey. States and Counties: Florida: Liberty. North Carolina: Carteret.
Radford, Albert E., Harry E. Ahles, and C. Ritchie Bell. Manual of the Vascular Flora of the Carolinas. 1964, 1968. The University of North Carolina Press. 142-155. Print.
