Difference between revisions of "Diodella teres"

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Common name: poorjoe
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Common name: Poorjoe
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==Taxonomic notes==
 +
Synonyms: ''Hexasepalum teres'' (Walter) J.H. Kirkbride; ''Diodia teres'' Walter<ref name=weakley>Weakley, A.S. 2020. Flora of the Southeastern United States. Edition of 20 October 2020. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.</ref>
 +
 
 +
Varieties: ''Diodia teres'' var. ''hirsutior'' Fernald & Griscom; ''Diodia teres'' var. ''hystricina'' Fernald & Griscom; ''Diodia teres'' var. ''oblongifolia'' Fernald; ''Diodia teres'' Walter var. ''setifera''; ''Diodia teres'' var. ''teres''<ref name=weakley/>
  
−
Synonym name: ''Diodia teres''
 
−
==Taxonomic notes==
 
 
==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. -->
−
Generally, for ''Diodia'' genus (this description is from Radford 1964. Diodella was not an accepted name at the time) they are "annual or perennial herbs. Leaves sessile, opposite pubescent or glabrate, margins hyaline, setose-serrate; stipules linear or fimbriate, ½ as long, or longer than, the fruit. Flowers 4-merous, axillary, usually solitary, sessile; calyx lobes equal or unequal; corolla salverform. Fruit leathery, surmounted by the persistent calyx lobes, splitting into 2, indehiscent, 1-seeded segments." - Radford et al 1964.  
+
Generally, for ''Diodia'' genus (this description is from Radford 1964. Diodella was not an accepted name at the time) they are "annual or perennial herbs. Leaves sessile, opposite pubescent or glabrate, margins hyaline, setose-serrate; stipules linear or fimbriate, ½ as long, or longer than, the fruit. Flowers 4-merous, axillary, usually solitary, sessile; calyx lobes equal or unequal; corolla salverform. Fruit leathery, surmounted by the persistent calyx lobes, splitting into 2, indehiscent, 1-seeded segments." <ref name=rad> 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. 979. Print. </ref>
  
−
Specifically, for ''D. teres'', they are "erect or spreading, usually pubescent perennial from a woody root crown, the stems branched, 1-6 dm or more long. Leaves elliptic-lanceolate to oblanceolate, mostly 2-7 cm long, 4-21 mm wide. Calyx lobes 2, linear-lanceolate, 4-6 mm long, pubescent; corolla white, tube 4-5 mm long, glabrous; stigma 2-lobed. Fruit hispid, obpyriform, 2.5-4 mm long, with a single longitudinal furrow. Fruit splitting into 2, indehiscent, 1-seeded segments." - Radford et al 1964.
+
Specifically, for ''D. teres'', they are "erect or spreading, usually pubescent perennial from a woody root crown, the stems branched, 1-6 dm or more long. Leaves elliptic-lanceolate to oblanceolate, mostly 2-7 cm long, 4-21 mm wide. Calyx lobes 2, linear-lanceolate, 4-6 mm long, pubescent; corolla white, tube 4-5 mm long, glabrous; stigma 2-lobed. Fruit hispid, obpyriform, 2.5-4 mm long, with a single longitudinal furrow. Fruit splitting into 2, indehiscent, 1-seeded segments." <ref name=rad/>
 +
==Distribution==
 +
''D. teres'' can be found across the United States, from New York and Massachusetts, west to Michigan and Wisconsin, south to Florida, and further west to Iowa, Kansas, New Mexico, Arizona, and California.<ref name= "USDA">USDA, NRCS. (2016). The PLANTS Database (http://plants.usda.gov, 2 May 2019). National Plant Data Team, Greensboro, NC 27401-4901 USA.</ref> This species is also native to Mexico as well as Central America.<ref name=weakley/>  It is native across its range in the United States, except for Michigan and Massachusetts where it is considered exotic.<ref name= "nature">[[http://explorer.natureserve.org]] NatureServe Explorer. Accessed: May 2, 2019</ref>
  
−
==Distribution==
 
 
==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.-->
−
''D. teres'' occurs in semi-shaded to open areas and well-drained sandy soil (FSU Herbarium). It can be found in longleaf pine savannas,<ref>Heuberger, K. A. and F. E. Putz (2003). "Fire in the suburbs: ecological impacts of prescribed fire in small remnants of longleaf pine (Pinus palustris) sandhill." Restoration Ecology 11: 72-81.</ref> turkey oak sand ridges, mixed hardwood forests, exposed coastal dunes, coastal hammocks, and scrub hills (FSU Herbarium).
+
Generally, this species can be found in sandy roadsides, dunes, hardpans, glades, and other dry habitats.<ref name=weakley/>  ''D. teres'' occurs in semi-shaded to open areas and well-drained sandy soil.<ref name=fsu>Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: Loran C. Anderson, Tom Barnes, A. F. Clewell, D. L. Fichtner, J. P. Gillespie, R. K. Godfrey, Bruce Hansen, R. Kral, Robert L. Lazor, Cecil R. Slaughter, Gwynn W. Ramsey, H. Larry Stripling, Brenda Herring, Wendy Zomlefer, Mabel Kral, D. W. Mather, F. C. Craighead, R. A. Norris, R. Komarek, Edwin L. Tyson, and JoAnn Hansen. States and Counties: Florida: Alachua, Bay, Citrus, Dade, Duval, Escambia, Franklin, Highland, Holmes, Jefferson, Lake, Leon, Liberty, Madison, Marion, Okaloosa, Orange, Polk, Santa Rosa, St. Johns, Taylor, Wakulla, and Walton. Georgia: Grady and Thomas. Other countries: Panama.</ref> It can be found in longleaf pine savannas,<ref>Heuberger, K. A. and F. E. Putz (2003). "Fire in the suburbs: ecological impacts of prescribed fire in small remnants of longleaf pine (Pinus palustris) sandhill." Restoration Ecology 11: 72-81.</ref> turkey oak sand ridges, mixed hardwood forests, exposed coastal dunes, coastal hammocks, and scrub hills.<ref name=fsu/> One study found ''D. teres'' to grow on gopher tortoise mounds that exclusively were recently abandoned.<ref>Kaczor, S. A. and D. C. Hartnett (1990). "Gopher tortoise (Gopherus polyphemus) effects on soils and vegetation in a Florida sandhill." American Midland Naturalist 123: 100-111.</ref>
  
−
This species decreased significantly in response to clearcutting and thinning. This is evidence that ''Diodella teres'' prefers relatively undisturbed areas as to disturbed areas.<ref>Brockway, D. G. and C. E. Lewis (2003). "Influence of deer, cattle grazing and timber harvest on plant species diversity in a longleaf pine bluestem ecosystem." Forest Ecology and Management 175: 49-69.</ref> However, it still occurs in some disturbed habitats, including roadsides and railroad yards (FSU Herbarium).
+
This species decreased significantly in response to clearcutting and thinning timber in one study.<ref>Brockway, D. G. and C. E. Lewis (2003). "Influence of deer, cattle grazing and timber harvest on plant species diversity in a longleaf pine bluestem ecosystem." Forest Ecology and Management 175: 49-69.</ref> However, it still occurs in some disturbed habitats, including roadsides and railroad yards.<ref name=fsu/> As well, disking at sites has shown to increase the frequency of this plant.<ref>Olinde, M. W. (2000). Vegetation response to disking on a longleaf pine site in southeastern Louisiana. Quail IV: Proceedings of the Fourth National Quail Symposium, Tallahassee, FL, Tall  Timbers Research, Inc.</ref>
  
−
Associated species include ''Toxicodendron, Rubus cuneifolius, Pteridium aquilinum, Elephantopus tomentosus, Triplasis purpurea, Crotalaria, Desmodium, D. virginiana, Serenoa repens,'' live oak, pine (FSU Herbarium).
+
''D. teres'' has shown positive regrowth in reestablished longleaf pine woodlands that were disturbed by agricultural practices to in South Carolina's coastal plains, making it an indicator species for post-agricultural woodlands.<ref>Brudvig, L.A., E Grman, C.W. Habeck, and J.A. Ledvina. (2013). Strong legacy of agricultural land use on soils and understory plant communities in longleaf pine woodlands. Forest Ecology and Management 310: 944-955.</ref> ''D. teres'' was found to have mixed responses to soil disturbance by roller chopping and clearcutting in  north and northwest Florida sandhills. The plant's regrowth in reestablished pine habitats tended to be dependent upon time since disturbance.<ref>Hebb, E.A. (1971). Site Preparation Decreases Game Food Plants in Florida Sandhills. The Journal of Wildlife Management 35(1):155-162.</ref><ref>Lewis, C.E., G.W. Tanner, and W.S. Terry. (1988). Plant responses to pine management and deferred-rotation grazing in north Florida. Journal of Range Management 41(6):460-465.</ref>
 +
 
 +
In the Piedmont, it has been observed to occur in areas of washing with most or all of the A horizon destroyed.<ref name=mcquilkin>McQuilkin, W. E. (1940). "The Natural Establishment of Pine in Abandoned Fields in the Piedmont Plateau Region." Ecology 21(2): 135-147.</ref>
 +
 
 +
Associated species include ''Toxicodendron, Rubus cuneifolius, Pteridium aquilinum, Elephantopus tomentosus, Triplasis purpurea, Crotalaria, Desmodium, D. virginiana, Serenoa repens,'' live oak, pine.<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/ -->
−
Flowering has been observed in June through October, and fruiting has been observed in June through November (FSU Herbarium).
+
General flowering time of ''D. teres'' is between June and December.<ref name=weakley/>  Flowering has been observed from May through October with peak inflorescence in July and September, and fruiting has been observed in June through November.<ref name=fsu/><ref>Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. www.gilnelson.com/PanFlora/ Accessed: 2 MAY 2019</ref> Flowers can range in color from white to purple.<ref name= "lady bird">[[https://www.wildflower.org/plants/search.php?search_field=&newsearch=true]] Lady Bird Johnson Wildflower Center. Accessed: May 2, 2019</ref>
  
 
===Seed dispersal===
 
===Seed dispersal===
−
===Seed bank and germination===
+
This species is thought to be dispersed by gravity.<ref>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.</ref> 
 +
<!--===Seed bank and germination===-->
 +
 
 
===Fire ecology=== <!--Fire tolerance, fire dependence, adaptive fire responses-->
 
===Fire ecology=== <!--Fire tolerance, fire dependence, adaptive fire responses-->
−
This species has been found frequently burned areas, including annually burned pinelands (FSU Herbarium). It appears to benefit especially from high fire frequency (in the Osceola study plots)<ref>Glitzenstein, J. S., D. R. Streng, et al. (2003). "Fire frequency effects on longleaf pine (Pinus palustris, P.Miller) vegetation in South Carolina and northeast Florida, USA." Natural Areas Journal 23: 22-37.</ref>
+
This species has been found in frequently burned areas, including annually burned pinelands<ref name=fsu/> such as those on the Pebble Hill plantation in North Florida.<ref>Robertson, K.M. Unpublished data collected from Pebble Hill Fire Plots, Pebble Hill Plantation, Thomasville, Georgia.</ref><ref>Glitzenstein, J. S., D. R. Streng, R. E. Masters, K. M. Robertson and S. M. Hermann 2012. Fire-frequency effects on vegetation in north Florida pinelands: Another look at the long-term Stoddard Fire Research Plots at Tall Timbers Research Station. Forest Ecology and Management 264: 197-209.</ref> It appears to benefit especially from high fire frequency (in the Osceola study plots).<ref>Glitzenstein, J. S., D. R. Streng, et al. (2003). "Fire frequency effects on longleaf pine (Pinus palustris, P.Miller) vegetation in South Carolina and northeast Florida, USA." Natural Areas Journal 23: 22-37.</ref> One study found density of ''D. teres'' to not significantly change in response to reintroduction of fire.<ref>Duncan, R. S., et al. (2008). "The effect of fire reintroduction on endemic and rare plants of a southeastern glade ecosystem." Restoration Ecology 16: 39-49.</ref>
  
 
===Pollination===
 
===Pollination===
−
The following Hymenoptera families and species were observed visiting flowers of ''Diodia teres'' at Archbold Biological Station (Deyrup 2015):
+
''Diodella teres'' has been observed at the Archbold Biological Station to host sweat bees such as ''Augochloropsis sumptuosa'' (family Halictidae) and thread-waisted wasps such as ''Prionyx thomae'' (family Sphecidae).<ref name="Deyrup 2015">Deyrup, M.A. and N.D. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.</ref> Additionally, this species has been observed to host sweat bees from the family Halictidae such as ''Augochlora pura''<ref>Deyrup, M. J. E., and Beth Norden (2002). "The diversity and floral hosts of bees at the Archbold Biological Station, Florida (Hymenoptera: Apoidea)." Insecta mundi 16(1-3).</ref>, ''Halictus parallelus'' and ''Lasioglossum vierecki'', and leafcutting bees from the Megachilidae family such as ''Megachile albitarsis'', ''M. mendica'' and ''M. texana''.<ref>Discoverlife.org [https://www.discoverlife.org/20/q?search=Bidens+albaDiscoverlife.org|Discoverlife.org]</ref>
  
−
Halictidae: ''Augochloropsis sumptuosa''
+
===Herbivory and toxicology===
 +
''D. teres'' consists of approximately 5-10% of the diet for large mammals and various terrestrial birds.<ref>Miller, J.H., and K.V. Miller. 1999. Forest plants of the southeast and their wildlife uses. Southern Weed Science Society.</ref> It is an important food to bobwhites in the summer months.<ref>Jones, J. D. J. and M. J. Chamberlain (2004). "Efficacy of herbicides and fire to improve vegetative conditions for northern bobwhites in mature pine forests." Wildlife Society Bulletin 32: 1077-1084.</ref> It is also a principal food for the morning dove in north-central Florida in October and December.<ref name=beckwith>Beckwith, S. L. (1959). "Mourning Dove Foods in Florida during October and December." The Journal of Wildlife Management 23(3): 351-354.</ref> As well, gopher tortoises (''Gopherus polyphemus'') have been observed foraging on ''D. teres'', and was found in their scat.<ref>Carlson, J. E., et al. (2003). "Seed dispersal by Gopherus polyphemus at Archbold Biological Station, Florida." Florida Scientist 66: 147-154.</ref>
  
−
Sphecidae:  ''Prionyx thomae''
+
<!--===Diseases and parasites===-->
  
−
===Use by animals=== <!--Herbivory, granivory, insect hosting, etc.-->
+
==Conservation, cultivation, and restoration==
−
It is an important food to bobwhites in the summer months.<ref>Jones, J. D. J. and M. J. Chamberlain (2004). "Efficacy of herbicides and fire to improve vegetative conditions for northern bobwhites in mature pine forests." Wildlife Society Bulletin 32: 1077-1084.</ref>
+
This species can be considered weedy or invasive in some habitats, according to sources in Kentucky.<ref name= "USDA"/>
−
The bee ''Augochloropsis suinptzosa'' was found on ''D. teres''.<ref>Deyrup, M. J. E., and Beth Norden (2002). "The diversity and floral hosts of bees at the Archbold Biological Station, Florida (Hymenoptera: Apoidea)." Insecta mundi 16(1-3).</ref>
 
  
−
===Diseases and parasites===
+
==Cultural use==
−
==Conservation and Management==
 
−
==Cultivation and restoration==
 
 
==Photo Gallery==
 
==Photo Gallery==
 +
<gallery widths=180px>
 +
</gallery>
 +
 
==References and notes==
 
==References and notes==
−
Deyrup, M.A. and N.D. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.
 
−
 
−
Florida State University Robert K. Godfrey Herbarium database. URL: [http://herbarium.bio.fsu.edu http://herbarium.bio.fsu.edu]. Last accessed: June 2014.  Collectors: Loran C. Anderson, Tom Barnes, A. F. Clewell, D. L. Fichtner, J. P. Gillespie, R. K. Godfrey, Bruce Hansen, R. Kral, Robert L. Lazor, Cecil R. Slaughter, Gwynn W. Ramsey, H. Larry Stripling, Brenda Herring, Wendy Zomlefer, Mabel Kral, D. W. Mather, F. C. Craighead, R. A. Norris, R. Komarek, Edwin L. Tyson, and JoAnn Hansen.  States and Counties:  Florida: Alachua, Bay, Citrus, Dade, Duval, Escambia, Franklin, Highland, Holmes, Jefferson, Lake, Leon, Liberty, Madison, Marion, Okaloosa, Orange, Polk, Santa Rosa, St. Johns, Taylor, Wakulla, and Walton. Georgia: Grady and Thomas.  Other countries: Panama.
 
−
 
−
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. 979. Print.
 

Latest revision as of 14:57, 25 May 2023

Diodella teres
Diodia teres 2015-05-18 PHFP B KMR.jpg
Photo taken by Kevin Robertson
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida – Dicotyledons
Order: Rubiales
Family: Rubiaceae
Genus: Diodella
Species: D. teres
Binomial name
Diodella teres
Walter
DIOD TERE dist.jpg
Natural range of Diodella teres from USDA NRCS Plants Database.

Common name: Poorjoe

Taxonomic notes

Synonyms: Hexasepalum teres (Walter) J.H. Kirkbride; Diodia teres Walter[1]

Varieties: Diodia teres var. hirsutior Fernald & Griscom; Diodia teres var. hystricina Fernald & Griscom; Diodia teres var. oblongifolia Fernald; Diodia teres Walter var. setifera; Diodia teres var. teres[1]

Description

Generally, for Diodia genus (this description is from Radford 1964. Diodella was not an accepted name at the time) they are "annual or perennial herbs. Leaves sessile, opposite pubescent or glabrate, margins hyaline, setose-serrate; stipules linear or fimbriate, ½ as long, or longer than, the fruit. Flowers 4-merous, axillary, usually solitary, sessile; calyx lobes equal or unequal; corolla salverform. Fruit leathery, surmounted by the persistent calyx lobes, splitting into 2, indehiscent, 1-seeded segments." [2]

Specifically, for D. teres, they are "erect or spreading, usually pubescent perennial from a woody root crown, the stems branched, 1-6 dm or more long. Leaves elliptic-lanceolate to oblanceolate, mostly 2-7 cm long, 4-21 mm wide. Calyx lobes 2, linear-lanceolate, 4-6 mm long, pubescent; corolla white, tube 4-5 mm long, glabrous; stigma 2-lobed. Fruit hispid, obpyriform, 2.5-4 mm long, with a single longitudinal furrow. Fruit splitting into 2, indehiscent, 1-seeded segments." [2]

Distribution

D. teres can be found across the United States, from New York and Massachusetts, west to Michigan and Wisconsin, south to Florida, and further west to Iowa, Kansas, New Mexico, Arizona, and California.[3] This species is also native to Mexico as well as Central America.[1] It is native across its range in the United States, except for Michigan and Massachusetts where it is considered exotic.[4]

Ecology

Habitat

Generally, this species can be found in sandy roadsides, dunes, hardpans, glades, and other dry habitats.[1] D. teres occurs in semi-shaded to open areas and well-drained sandy soil.[5] It can be found in longleaf pine savannas,[6] turkey oak sand ridges, mixed hardwood forests, exposed coastal dunes, coastal hammocks, and scrub hills.[5] One study found D. teres to grow on gopher tortoise mounds that exclusively were recently abandoned.[7]

This species decreased significantly in response to clearcutting and thinning timber in one study.[8] However, it still occurs in some disturbed habitats, including roadsides and railroad yards.[5] As well, disking at sites has shown to increase the frequency of this plant.[9]

D. teres has shown positive regrowth in reestablished longleaf pine woodlands that were disturbed by agricultural practices to in South Carolina's coastal plains, making it an indicator species for post-agricultural woodlands.[10] D. teres was found to have mixed responses to soil disturbance by roller chopping and clearcutting in north and northwest Florida sandhills. The plant's regrowth in reestablished pine habitats tended to be dependent upon time since disturbance.[11][12]

In the Piedmont, it has been observed to occur in areas of washing with most or all of the A horizon destroyed.[13]

Associated species include Toxicodendron, Rubus cuneifolius, Pteridium aquilinum, Elephantopus tomentosus, Triplasis purpurea, Crotalaria, Desmodium, D. virginiana, Serenoa repens, live oak, pine.[5]

Phenology

General flowering time of D. teres is between June and December.[1] Flowering has been observed from May through October with peak inflorescence in July and September, and fruiting has been observed in June through November.[5][14] Flowers can range in color from white to purple.[15]

Seed dispersal

This species is thought to be dispersed by gravity.[16]

Fire ecology

This species has been found in frequently burned areas, including annually burned pinelands[5] such as those on the Pebble Hill plantation in North Florida.[17][18] It appears to benefit especially from high fire frequency (in the Osceola study plots).[19] One study found density of D. teres to not significantly change in response to reintroduction of fire.[20]

Pollination

Diodella teres has been observed at the Archbold Biological Station to host sweat bees such as Augochloropsis sumptuosa (family Halictidae) and thread-waisted wasps such as Prionyx thomae (family Sphecidae).[21] Additionally, this species has been observed to host sweat bees from the family Halictidae such as Augochlora pura[22], Halictus parallelus and Lasioglossum vierecki, and leafcutting bees from the Megachilidae family such as Megachile albitarsis, M. mendica and M. texana.[23]

Herbivory and toxicology

D. teres consists of approximately 5-10% of the diet for large mammals and various terrestrial birds.[24] It is an important food to bobwhites in the summer months.[25] It is also a principal food for the morning dove in north-central Florida in October and December.[26] As well, gopher tortoises (Gopherus polyphemus) have been observed foraging on D. teres, and was found in their scat.[27]


Conservation, cultivation, and restoration

This species can be considered weedy or invasive in some habitats, according to sources in Kentucky.[3]

Cultural use

Photo Gallery

References and notes

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Weakley, A.S. 2020. Flora of the Southeastern United States. Edition of 20 October 2020. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  2. ↑ 2.0 2.1 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. 979. Print.
  3. ↑ 3.0 3.1 USDA, NRCS. (2016). The PLANTS Database (http://plants.usda.gov, 2 May 2019). National Plant Data Team, Greensboro, NC 27401-4901 USA.
  4. ↑ [[1]] NatureServe Explorer. Accessed: May 2, 2019
  5. ↑ 5.0 5.1 5.2 5.3 5.4 5.5 Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: Loran C. Anderson, Tom Barnes, A. F. Clewell, D. L. Fichtner, J. P. Gillespie, R. K. Godfrey, Bruce Hansen, R. Kral, Robert L. Lazor, Cecil R. Slaughter, Gwynn W. Ramsey, H. Larry Stripling, Brenda Herring, Wendy Zomlefer, Mabel Kral, D. W. Mather, F. C. Craighead, R. A. Norris, R. Komarek, Edwin L. Tyson, and JoAnn Hansen. States and Counties: Florida: Alachua, Bay, Citrus, Dade, Duval, Escambia, Franklin, Highland, Holmes, Jefferson, Lake, Leon, Liberty, Madison, Marion, Okaloosa, Orange, Polk, Santa Rosa, St. Johns, Taylor, Wakulla, and Walton. Georgia: Grady and Thomas. Other countries: Panama.
  6. ↑ Heuberger, K. A. and F. E. Putz (2003). "Fire in the suburbs: ecological impacts of prescribed fire in small remnants of longleaf pine (Pinus palustris) sandhill." Restoration Ecology 11: 72-81.
  7. ↑ Kaczor, S. A. and D. C. Hartnett (1990). "Gopher tortoise (Gopherus polyphemus) effects on soils and vegetation in a Florida sandhill." American Midland Naturalist 123: 100-111.
  8. ↑ Brockway, D. G. and C. E. Lewis (2003). "Influence of deer, cattle grazing and timber harvest on plant species diversity in a longleaf pine bluestem ecosystem." Forest Ecology and Management 175: 49-69.
  9. ↑ Olinde, M. W. (2000). Vegetation response to disking on a longleaf pine site in southeastern Louisiana. Quail IV: Proceedings of the Fourth National Quail Symposium, Tallahassee, FL, Tall Timbers Research, Inc.
  10. ↑ Brudvig, L.A., E Grman, C.W. Habeck, and J.A. Ledvina. (2013). Strong legacy of agricultural land use on soils and understory plant communities in longleaf pine woodlands. Forest Ecology and Management 310: 944-955.
  11. ↑ Hebb, E.A. (1971). Site Preparation Decreases Game Food Plants in Florida Sandhills. The Journal of Wildlife Management 35(1):155-162.
  12. ↑ Lewis, C.E., G.W. Tanner, and W.S. Terry. (1988). Plant responses to pine management and deferred-rotation grazing in north Florida. Journal of Range Management 41(6):460-465.
  13. ↑ McQuilkin, W. E. (1940). "The Natural Establishment of Pine in Abandoned Fields in the Piedmont Plateau Region." Ecology 21(2): 135-147.
  14. ↑ Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. www.gilnelson.com/PanFlora/ Accessed: 2 MAY 2019
  15. ↑ [[2]] Lady Bird Johnson Wildflower Center. Accessed: May 2, 2019
  16. ↑ 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.
  17. ↑ Robertson, K.M. Unpublished data collected from Pebble Hill Fire Plots, Pebble Hill Plantation, Thomasville, Georgia.
  18. ↑ Glitzenstein, J. S., D. R. Streng, R. E. Masters, K. M. Robertson and S. M. Hermann 2012. Fire-frequency effects on vegetation in north Florida pinelands: Another look at the long-term Stoddard Fire Research Plots at Tall Timbers Research Station. Forest Ecology and Management 264: 197-209.
  19. ↑ Glitzenstein, J. S., D. R. Streng, et al. (2003). "Fire frequency effects on longleaf pine (Pinus palustris, P.Miller) vegetation in South Carolina and northeast Florida, USA." Natural Areas Journal 23: 22-37.
  20. ↑ Duncan, R. S., et al. (2008). "The effect of fire reintroduction on endemic and rare plants of a southeastern glade ecosystem." Restoration Ecology 16: 39-49.
  21. ↑ Deyrup, M.A. and N.D. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.
  22. ↑ Deyrup, M. J. E., and Beth Norden (2002). "The diversity and floral hosts of bees at the Archbold Biological Station, Florida (Hymenoptera: Apoidea)." Insecta mundi 16(1-3).
  23. ↑ Discoverlife.org [3]
  24. ↑ Miller, J.H., and K.V. Miller. 1999. Forest plants of the southeast and their wildlife uses. Southern Weed Science Society.
  25. ↑ Jones, J. D. J. and M. J. Chamberlain (2004). "Efficacy of herbicides and fire to improve vegetative conditions for northern bobwhites in mature pine forests." Wildlife Society Bulletin 32: 1077-1084.
  26. ↑ Beckwith, S. L. (1959). "Mourning Dove Foods in Florida during October and December." The Journal of Wildlife Management 23(3): 351-354.
  27. ↑ Carlson, J. E., et al. (2003). "Seed dispersal by Gopherus polyphemus at Archbold Biological Station, Florida." Florida Scientist 66: 147-154.
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