Difference between revisions of "Gentiana villosa"
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==Ecology== | ==Ecology== | ||
===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.--> | ||
| − | Generally, ''G. villosa'' grows in sandhill or pocosin ecotones and upland forests.<ref name= "Weakley"/> This species has been found in mixed woodlands, secondary, brushy pine-oak upland woods, longleaf pine-turkey oak sand ridges, and hillsides.<ref name=fsu>Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: R.K. Godfrey, J. P. Gillespie, A. F. Clewell, R. Kral, Betty Pierce, Gary R. Knight, Rodie White, Richard R. Clinebell II, and R. Komarek. States and Counties: Florida: Jackson, Leon, Liberty, and Madison. Georgia: Grady and Thomas.</ref> | + | Generally, ''G. villosa'' grows in sandhill or pocosin ecotones and upland forests.<ref name= "Weakley"/> This species has been found in mixed woodlands, secondary, brushy pine-oak upland woods, longleaf pine-turkey oak sand ridges, and hillsides. It has been observed growing in rich, moist, humus in shaded locations.<ref name=fsu>Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: R.K. Godfrey, J. P. Gillespie, A. F. Clewell, R. Kral, Betty Pierce, Gary R. Knight, Rodie White, Richard R. Clinebell II, and R. Komarek. States and Counties: Florida: Jackson, Leon, Liberty, and Madison. Georgia: Grady and Thomas.</ref> |
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| + | Associated species include ''Pinus palustris'' and ''Quercus laevis.''<ref name=fsu/> | ||
===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/ --> | ||
Revision as of 12:04, 17 May 2019
| Gentiana villosa | |
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| Photo taken by Gil | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Magnoliophyta - Flowering plants |
| Class: | Magnoliopsida – Dicotyledons |
| Order: | Gentianales |
| Family: | Gentianaceae |
| Genus: | Gentiana |
| Species: | G. villosalink title |
| Binomial name | |
| Gentiana villosa L. | |
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| Natural range of Gentiana villosa from USDA NRCS Plants Database. | |
Common name: Striped gentian
Contents
Taxonomic notes
Synonyms: Dasystephana villosa (Linnaeus) Small; Pneumonanthe villosa (Linnaeus) F.W. Schmidt
Description
"Annual or perennial herbs. Stems erect, teret, often in clumps. Leaves opposite, entire, sessile to short-petiolate. Flowers solitary or in congested cymes, pedicellate or sessile. Calyx 4-5 lobed, tubular; corolla cleft ½ or less its length, campanulate, funnelform or tubular, lobes the same number as the sepals, often connected with a thin tissue (pleats); stamens 4-5, anthers free, or coherent in a ring around the style; stigmas erect, recurved in age, style short or absent. Capsule laterally compressed, elongate, stipitate; seeds 0.6-2.2 mm long." [1]
"Perennial with thick fleshy roots. Stem strict, ascending to erect, 1.5-5 dm tall. Leaves elliptic, 4-8.5 cm long, 1-3 cm wide, acute to obtuse, base attenuate to cuneate, sessile to short-petiolate. Flowers essentially sessile, solitary or in compact, 3-7 flowered cymes. Calyx 2-3.3 cm long, tube 7-13 mm long, lobes linear to narrowly elliptic, 10-20 mm long, to 3 mm wide, acute, erect to ascending; corolla greenish to yellowish white, usually tinted or striped with purple, funnel form, 3-4.2 cm long, tube 2.5-4 cm long, lobes 5, triangular-ovate, the corolla, anther adherent; stigmas spreading-recurved, style 3-5 mm long. Capsules ellipsoid to oblong, laterally compressed, 1.7-2.5 cm long, stipitate; seeds brown, ellipsoid to oblong, faintly reticulate, 1.1-1.3 mm long." [1]
Distribution
Gentiana villosa can be found from southeast Pennsylvania west to northern Kentucky and western Tennessee, and south to the Florida panhandle and eastern Louisiana.[2]
Ecology
Habitat
Generally, G. villosa grows in sandhill or pocosin ecotones and upland forests.[2] This species has been found in mixed woodlands, secondary, brushy pine-oak upland woods, longleaf pine-turkey oak sand ridges, and hillsides. It has been observed growing in rich, moist, humus in shaded locations.[3]
Associated species include Pinus palustris and Quercus laevis.[3]
Phenology
It generally flowers from late August until November.[2] This plant has been observed to flower from October to November.[3]
Seed dispersal
This species is thought to be dispersed by gravity. [4]
Fire ecology
This plant is found in areas that are annually burned.[3]
Use by animals
It is considered by pollination ecologists to be of special value to bumble bees.[5]
Conservation and management
Gentiana villosa is listed as endangered by the Indiana Department of Natural Resources, by the Maryland Department of Natural Resources, by the Ohio Department of Natural Resources, and by the Pennsylvania Department of Conservation and Natural Resources.[6] It is also presumed extirpated in New Jersey and Washington D.C., and considered vulnerable in Louisiana and Alabama.[7]
Cultivation and restoration
Photo Gallery
Gentiana villosa Photo taken by Kevin Robertson
Pebble Hill Plantation, Grady, Georgia
.JPG)
References and notes
- ↑ 1.0 1.1 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. Print.
- ↑ 2.0 2.1 2.2 Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
- ↑ 3.0 3.1 3.2 3.3 Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: R.K. Godfrey, J. P. Gillespie, A. F. Clewell, R. Kral, Betty Pierce, Gary R. Knight, Rodie White, Richard R. Clinebell II, and R. Komarek. States and Counties: Florida: Jackson, Leon, Liberty, and Madison. Georgia: Grady and Thomas.
- ↑ Kirkman, L. Katherine. Unpublished database of seed dispersal mode of plants found in Coastal Plain longleaf pine-grasslands of the Jones Ecological Research Center, Georgia.
- ↑ [[1]] Lady Bird Johnson Wildflower Center. Accessed: May 17, 2019
- ↑ USDA, NRCS. (2016). The PLANTS Database (http://plants.usda.gov, 17 May 2019). National Plant Data Team, Greensboro, NC 27401-4901 USA.
- ↑ [[2]] NatureServe Explorer. Accessed: May 17, 2019
