Difference between revisions of "Desmodium strictum"

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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.-->
 
Generally, ''D. strictum'' can be found in dry woodlands and sandhills.<ref name= "Weakley"/> It thrives in open, frequently burned areas such as longleaf pine and shortleaf pine old field habitats (ultisols). <ref name=cof> Coffey, K. L. and L. K. Kirkman (2006). "Seed germination strategies of species with restoration potential in a fire-maintained pine savanna." Natural Areas Journal 26: 289-299. </ref> <ref name=fsu> Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: L. C. Anderson, R. K. Godfrey, V. Sullivan, J. Wooten, R. Kral, James R. Ray Jr., John Morrill, Robert L. Lazor, Andre F. Clewell, and T. MacClendon. States and Counties: Florida: Bay, Bradford, Franklin, Gadsden, Hernando, Jackson, Leon, Putnam, Taylor, Wakulla, and Walton. Georgia: Baker, Grady, and Thomas.</ref> It also occurs in longleaf pine-turkey oak sandhills (entisols), and in longleaf pine and slash pine flatwoods (spodosols).<ref name=fsu/> It occurs in habitats dominated by ultisol soil types with average temperatures from 11 to 27° Celsuis, and with 132 cm of annual rainfall. <ref name=cof/> In florida, ''D. strictum'' is an indicator species of the clayhill longleaf woodlands community.<ref>Carr, S. C., et al. (2010). "A Vegetation Classification of Fire-Dependent Pinelands of Florida." Castanea 75(2): 153-189.</ref> It is seen in habitats with soil types of sandy loam to eroded sandy clayey areas. <ref name=fsu/> It prefers to grow in either partial shade or full shade.<ref>[[https://www.wildflower.org/plants/search.php?search_field=&newsearch=true]] Lady Bird Johnson Wildflower Center. Accessed: April 26, 2019</ref> Outside of the southeast coastal plain, ''D. strictum'' can be found in upland pitch pine barrens in New Jersey.<ref>[[http://explorer.natureserve.org/]] NatureServe Explorer. Accessed: April 26, 2019</ref> ''D. strictum'' responds positively to soil disturbance as observed from old field longleaf communities in South Carolina.<ref>Brudvig, L.A. and E.I. Damchen. (2011). Land-use history, historical connectivity, and land management interact to determine longleaf pine woodland understory richness and composition. Ecography 34: 257-266.</ref>
 
Generally, ''D. strictum'' can be found in dry woodlands and sandhills.<ref name= "Weakley"/> It thrives in open, frequently burned areas such as longleaf pine and shortleaf pine old field habitats (ultisols). <ref name=cof> Coffey, K. L. and L. K. Kirkman (2006). "Seed germination strategies of species with restoration potential in a fire-maintained pine savanna." Natural Areas Journal 26: 289-299. </ref> <ref name=fsu> Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: L. C. Anderson, R. K. Godfrey, V. Sullivan, J. Wooten, R. Kral, James R. Ray Jr., John Morrill, Robert L. Lazor, Andre F. Clewell, and T. MacClendon. States and Counties: Florida: Bay, Bradford, Franklin, Gadsden, Hernando, Jackson, Leon, Putnam, Taylor, Wakulla, and Walton. Georgia: Baker, Grady, and Thomas.</ref> It also occurs in longleaf pine-turkey oak sandhills (entisols), and in longleaf pine and slash pine flatwoods (spodosols).<ref name=fsu/> It occurs in habitats dominated by ultisol soil types with average temperatures from 11 to 27° Celsuis, and with 132 cm of annual rainfall. <ref name=cof/> In florida, ''D. strictum'' is an indicator species of the clayhill longleaf woodlands community.<ref>Carr, S. C., et al. (2010). "A Vegetation Classification of Fire-Dependent Pinelands of Florida." Castanea 75(2): 153-189.</ref> It is seen in habitats with soil types of sandy loam to eroded sandy clayey areas. <ref name=fsu/> It prefers to grow in either partial shade or full shade.<ref>[[https://www.wildflower.org/plants/search.php?search_field=&newsearch=true]] Lady Bird Johnson Wildflower Center. Accessed: April 26, 2019</ref> Outside of the southeast coastal plain, ''D. strictum'' can be found in upland pitch pine barrens in New Jersey.<ref>[[http://explorer.natureserve.org/]] NatureServe Explorer. Accessed: April 26, 2019</ref> ''D. strictum'' responds positively to soil disturbance as observed from old field longleaf communities in South Carolina.<ref>Brudvig, L.A. and E.I. Damchen. (2011). Land-use history, historical connectivity, and land management interact to determine longleaf pine woodland understory richness and composition. Ecography 34: 257-266.</ref>
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Associated species include  ''D. viridiflorum, D. floridanum, D. glabellum, D. canescens, D. marilandicum, Aristida stricta, Pinus palutris,'' and ''P. elliotii''. <ref name=fsu/>
 
Associated species include  ''D. viridiflorum, D. floridanum, D. glabellum, D. canescens, D. marilandicum, Aristida stricta, Pinus palutris,'' and ''P. elliotii''. <ref name=fsu/>

Revision as of 14:46, 13 May 2019

Desmodium strictum
Desm stri.jpg
Photo taken by Kevin Robertson
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida – Dicotyledons
Order: Fabales
Family: Fabaceae ⁄ Leguminosae
Genus: Desmodium
Species: D. strictum
Binomial name
Desmodium strictum
(Pursh) DC.
DESM STRI dist.jpg
Natural range of Desmodium strictum from USDA NRCS Plants Database.

Common names: Pine Barren Tick-trefoil; Pineland Tick-trefoil

Taxonomic notes

Synonym: Meibomia stricta (Pursh) Kuntze

Description

Generally, for Desmodium genus, they are "annual or perennial herbs, shrubs or small trees. Leaves 1-5 foliolate, pinnately 3-foliolate in ours or rarely the uppermost or lowermost 1-foliolate; leaflets entire, usually stipellate; stipules caduceus to persistent, ovate to subulate, foliaceous to setaceous, often striate. Inflorescence terminal and from the upper axils, paniculate or occasionally racemose; pedicel of each papilionaceous flower subtended by a secondary bract or bractlet, the cluster of 1-few flowers subtended by a primary bract. Calyx slightly to conspicuously 2-lipped, the upper lip scarcely bifid, the lower lip 3-dentate; petals pink, roseate, purple, bluish or white; stamens monadelphous or more commonly diadelphous and then 9 and 1. Legume a stipitate loment, the segments 2-many or rarely solitary, usually flattened and densely uncinated-pubescent, separating into 1-seeded, indehiscent segments." [1]

Specifically, for D.strictum species, they are "erect perennial; stems 0.5-1.2 m tall, sparsely to densely uncinulate-puberulent and short-pubescent, often becoming glabrate below. Terminal leaflets linear to narrowly oblong, often 6-10 X as long as wide, 3-7 cm long, glabrate or minutely puberulent or sparsely short-pubescent especially along the veins beneath, fine reticulate; stipules linear-subulate, 2-4 mm long; stipels persistent. Inflorescence usually paniculate, densely uncinulate-puberulent; pedicels (4) 6-11 mm long. Calyx densely puberulent and sparsely short-pubescent; petals purplish, 3-5 mm long, stamens diadelphous. Loments of 1-3 suborbicular to weakly obovate segments, each 4-6 mm long, 3-4 mm broad, upper suture of each segment slightly concave or indented, densely uncinlate-puberulent on both sutures and sides; stipe 1-2 mm long, about as long as calyx but shorter than stamina remnants." [1]

Distribution

D. strictum is native to the United States from south New Jersey down to south Florida and west to western Louisiana.[2]

Ecology

Habitat

Generally, D. strictum can be found in dry woodlands and sandhills.[2] It thrives in open, frequently burned areas such as longleaf pine and shortleaf pine old field habitats (ultisols). [3] [4] It also occurs in longleaf pine-turkey oak sandhills (entisols), and in longleaf pine and slash pine flatwoods (spodosols).[4] It occurs in habitats dominated by ultisol soil types with average temperatures from 11 to 27° Celsuis, and with 132 cm of annual rainfall. [3] In florida, D. strictum is an indicator species of the clayhill longleaf woodlands community.[5] It is seen in habitats with soil types of sandy loam to eroded sandy clayey areas. [4] It prefers to grow in either partial shade or full shade.[6] Outside of the southeast coastal plain, D. strictum can be found in upland pitch pine barrens in New Jersey.[7] D. strictum responds positively to soil disturbance as observed from old field longleaf communities in South Carolina.[8]

Associated species include D. viridiflorum, D. floridanum, D. glabellum, D. canescens, D. marilandicum, Aristida stricta, Pinus palutris, and P. elliotii. [4]

Phenology

D. strictum generally flowers from July through August and fruits from August through October.[2] It has been observed to flower from September to October with peak inflorescence in October, and fruit from September to November.[9][4]

Seed dispersal

This species is thought to be dispersed by translocation on animal fur or feathers. [10]

Seed bank and germination

Because Desmodium strictum lacks a hard seed coat, it is not capable of forming long-term persistent seed banks, but rather germinates readily within one year following dispersal. [3] This suggests that D. strictum does not exhibit the strong physical dormancy attributed to an impermeable seed coat that many other legumes do (it lacks a hard seed coat). [3]

Fire ecology

It thrives in frequently burned (1-2 year interval) habitats.[3][4] Frequency of D. strictum is the greatest in response to winter and spring burn regiments rather than summer burn regiments.[11]

Use by animals

This species consists of approximately 10-25% of the diet for large mammals and terrestrial birds.[12]

Conservation and management

D. strictum is listed as endangered by the Maryland Department of Natural Resources.[13]

Cultivation and restoration

Photo Gallery

  • Desmodium strictum

    Photo by Kevin Robertson

    Grady County, GA

References and notes

  1. ↑ 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. 604-9. Print.
  2. ↑ 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. ↑ 3.0 3.1 3.2 3.3 3.4 Coffey, K. L. and L. K. Kirkman (2006). "Seed germination strategies of species with restoration potential in a fire-maintained pine savanna." Natural Areas Journal 26: 289-299.
  4. ↑ 4.0 4.1 4.2 4.3 4.4 4.5 Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: L. C. Anderson, R. K. Godfrey, V. Sullivan, J. Wooten, R. Kral, James R. Ray Jr., John Morrill, Robert L. Lazor, Andre F. Clewell, and T. MacClendon. States and Counties: Florida: Bay, Bradford, Franklin, Gadsden, Hernando, Jackson, Leon, Putnam, Taylor, Wakulla, and Walton. Georgia: Baker, Grady, and Thomas.
  5. ↑ Carr, S. C., et al. (2010). "A Vegetation Classification of Fire-Dependent Pinelands of Florida." Castanea 75(2): 153-189.
  6. ↑ [[1]] Lady Bird Johnson Wildflower Center. Accessed: April 26, 2019
  7. ↑ [[2]] NatureServe Explorer. Accessed: April 26, 2019
  8. ↑ Brudvig, L.A. and E.I. Damchen. (2011). Land-use history, historical connectivity, and land management interact to determine longleaf pine woodland understory richness and composition. Ecography 34: 257-266.
  9. ↑ 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: 26 APR 2019
  10. ↑ 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.
  11. ↑ Kush, J. S., et al. (2000). Understory plant community response to season of burn in natural longleaf pine forests. Proceedings 21st Tall Timbers Fire Ecology Conference. Fire and forest ecology: innovative silviculture & vegetation management, Tallahassee, FL, Tall Timbers Research, Inc.
  12. ↑ Miller, J.H., and K.V. Miller. 1999. Forest plants of the southeast and their wildlife uses. Southern Weed Science Society.
  13. ↑ USDA, NRCS. (2016). The PLANTS Database (http://plants.usda.gov, 26 April 2019). National Plant Data Team, Greensboro, NC 27401-4901 USA.
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