Rhexia parviflora - Chapman
Small-flower Meadowbeauty
Other English Common Names: White Meadowbeauty
Other Common Names: white meadowbeauty
Taxonomic Status: Accepted
Related ITIS Name(s): Rhexia parviflora Chapman (TSN 27692)
Unique Identifier: ELEMENT_GLOBAL.2.153109
Element Code: PDMLS0H080
Informal Taxonomy: Plants, Vascular - Flowering Plants - Melastome Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Myrtales Melastomataceae Rhexia
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Concept Reference
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Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Rhexia parviflora
Conservation Status
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NatureServe Status

Global Status: G2
Global Status Last Reviewed: 01Sep2008
Global Status Last Changed: 10May1985
Rounded Global Status: G2 - Imperiled
Reasons: This species has very restricted range and habitat requirements and existing populations consist of only a few individuals. Populations are scattered about the western and central Florida panhandle and adjacent Alabama. The species has also been reported from Georgia. Habitat quality and availability has declined due to fire exclusion, development, timbering and intensive site preparation methods.
Nation: United States
National Status: N2

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Alabama (S1), Florida (S2), Georgia (SH)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Occurs mainly in the western and center Florida panhandle. Also known from southeast Alabama (Chafin 2000) and reported from Georgia (Weakley 2007; Kartesz 1999).

Area of Occupancy: 6-25 4-km2 grid cells
Area of Occupancy Comments:  

Number of Occurrences: 21 - 80
Number of Occurrences Comments: There are 43 extant occurrences, 39 in Florida and 4 in Alabama (Schotz 2008). Five of the extant occurrences have poor viability (Schotz 2008).

Population Size Comments: Uncommon within known range; few individuals per population.

Overall Threat Impact: High - medium
Overall Threat Impact Comments: Fire exclusion and unplanned development are the greatest threats to Rhexia parviflora (Schotz 2008). Other threats include site preparation for pine plantations and resulting changes in drainage patterns, logging, road and firebreak construction, and ORV's (Chafin 2000).

Short-term Trend: Decline of 10-50%
Short-term Trend Comments: Declining due to fire exclusion, development, and forestry practices (Schotz 2008).

Long-term Trend: Decline of 30-70%
Long-term Trend Comments: Nearly eliminated from private lands due to logging and wetland drainage (Chafin 2000).

Intrinsic Vulnerability Comments: Sensitive to changes in ground and surface hydrology.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Occurs mainly in the western and center Florida panhandle. Also known from southeast Alabama (Chafin 2000) and reported from Georgia (Weakley 2007; Kartesz 1999).

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AL, FL, GA

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
AL Covington (01039), Escambia (01053), Geneva (01061)
FL Bay (12005), Calhoun (12013), Franklin (12037), Gulf (12045), Liberty (12077), Okaloosa (12091), Santa Rosa (12113), Walton (12131)
GA Baker (13007)*
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
03 Lower Flint (03130008)+*, Ichawaynochaway (03130009)+*, Apalachicola (03130011)+, Chipola (03130012)+, New (03130013)+, Apalachicola Bay (03130014)+, St. Andrew-St. Joseph Bays (03140101)+, Choctawhatchee Bay (03140102)+, Yellow (03140103)+, Blackwater (03140104)+, Pensacola Bay (03140105)+, Pea (03140202)+, Lower Choctawhatchee (03140203)+, Escambia (03140305)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: An erect, perennial herb from a rhizome. Stems (1 to a few) are erect, up to 4 dm tall. Flowers are white and are borne in small clusters. Flowers June to August.
Technical Description: "Low plant, perennating by short, slender rhizomes. Stem 1-4 dm tall, 4 angled, faces subequal, internodes sparingly pubescent or glabrous, nodes pubescent. Larger leaves broadly ovate to elliptic, 1.5-3 cm long, short-petiolate, sparsely pubescent, margins finely toothed, the ascending teeth hair-tipped. Bracts "leafy." Petals white, asymmetrical, suborbicular to broadly obovate, mostly about 1 cm long, surfaces glabrous. Mature floral tube 5-7 mm long, body subglobose, neck short-cylindrical, shorter than the body, a few hairs near the orifice. Calyx segments short-triangular, apices short-acuminate. Seed 0.6 mm long, crested with irregular, roughly concentric interrupted lines of laterally flattened tubercules, these in turn vertically grooved" (Godfrey and Wooten 1981).
Diagnostic Characteristics: Rhexia parviflora may be characterized by white flowers with "calyx segments short-triangular, short acuminate apically; corollas less than 2 cm across; bracts elliptic or broader, often nearly as broad as the floral tubes they subtend, giving the mature inflorescence a 'leafy' appearance; leaves at midstem with definite and distinct petioles and blades" (Godfrey and Wooten 1981). Rhexia mariana is the most common similar species. It has leaves without petioles, distinctly hairy stems, flowers more than 2 cm across, and only a few narrow bracts in the inflorescence (Chafin 2000).
Duration: PERENNIAL
Palustrine Habitat(s): Bog/fen, FORESTED WETLAND, SCRUB-SHRUB WETLAND
Habitat Comments: Margins of ponds and shallow depressions associated with pine-palmetto flatwoods and savannas of the Gulf Coastal Plain (Schotz 2008). Found on seepage slopes and margins of dome swamps, depression marshes, and evergreen shrub ponds (Chafin 2000). Soils are high peat content sands (Kral 1983.)
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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Excellent Viability: An A-ranked occurrence of Rhexia parviflora is defined by no less than 300 plants in high quality habitat. Ideally, the occurrence should be well insulated from potential anthropogenic disturbance where the habitat is characterized by open to partially shaded pond margins, with no or minimal influence (< 10 %) by exotic and/or native invasive species.

Good Viability: A B-ranked occurrence of Rhexia parviflora is defined by 75 to 299 plants in high quality habitat. Ideally, the occurrence should be well insulated from potential anthropogenic disturbance where the habitat is characterized by open to partially shaded pond margins, with no or minimal influence (< 10 %) by exotic and/or native invasive species. B-ranked specifications also apply to larger occurrences having a greater affluence (to 30 %) of invasive species and/or human-derived modifications. Restoration potential to A-ranked specifications is good.


Fair Viability: A C-ranked occurrence of Rhexia parviflora is defined by 20 to 74 plants in high quality habitat. Ideally, the occurrence should be well insulated from potential anthropogenic disturbance where the habitat is characterized by open to partially shaded pond margins, with no or minimal influence (< 10 %) by exotic and/or native invasive species. C-ranked specifications also apply to larger occurrences having a greater affluence (to 75 %) of invasive species and/or human-derived modifications. Restoration potential to A- and B-ranked specifications is good.

Poor Viability: A D-ranked occurrence of Rhexia parviflora is defined by less than 20 plants in high quality habitat. D-ranked specifications also apply to larger occurrences in highly modified habitat with minimal or no restoration potential.

Justification: Specifications are based on Element Occurrence Records, personal observations, and expert opinion. Currently, no known qualitative or comparative studies have been conducted. As additional information becomes available, rank specs should be revised.

Key for Ranking Species Element Occurrences Using the Generic Approach (2008).
Date: 14Jul2005
Author: Schotz, A.
U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 27Dec1988
NatureServe Conservation Status Factors Author: Hardin, E.D. rev. D.L. White (1997), rev. A. Tomaino (2008)
Element Ecology & Life History Edition Date: 06Jul1992

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
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  • Alabama Natural Heritage Program. 2003. Annual Report - Fiscal Year 2003. Alabama Natural Heritage Program, Huntingdon College, Montgomery. [http://www.alnhp.org/pdf/annrep03.pdf]

  • CLEWELL, ANDRE F. 1985. GUIDE TO THE VASCULAR PLANTS OF THE FLORIDA PANHANDLE. UNIV. PRESSES OF FLORIDA, GAINESVILLE, FL. 605 PP.

  • Center for Biological Diversity. 2010. Petition to list 404 aquatic, riparian and wetland species from the southeastern United States as threatened or endangered under the Endangered Species Act. Petition submitted to the U.S. Fish and Wildlife Service.

  • Chafin, L. G. 2000. Field guide to the rare plants of Florida. Florida Natural Areas Inventory, Tallahassee. [http://www.fnai.org/FieldGuide/]

  • Clewell, A.F. 1985. Guide to vascular plants of the Florida panhandle. Florida State Univ. Press, Tallahassee, Florida. 605 pp.

  • Godfrey, R.K., and J.W. Wooten. 1981. Aquatic and wetland plants of southeastern United States: Dicotyledons. Univ. Georgia Press, Athens. 933 pp.

  • Jensen, J. 1994. Florida Natural Areas Inventory field report form - occurrence of Rhexia parviflora in Santa Rosa County, Florida.

  • Jensen, J. 1994. Florida Natural Areas Inventory field report form - occurrence of Rhexia parviflora in Santa Rosa County, Florida.

  • KRAL, R. 1983.A REPORT ON SOME RARE,THREATENED,OR ENDANGEREDFOREST-RELATED VASCULAR PLANTS OF THE SOUTH.VOL I ISOETACEAETHROUGH EUPHORBIACEAE;VOL II AQUIFOLIACEA THROUGH ASTERACEAE& GLOSSARY.USDA FOREST SERV,SE REG.,ATL,GA. TECH PUBL R8-TP2

  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.

  • Kral, R. 1983c. A report on some rare, threatened, or endangered forest-related vascular plants of the South. U.S. Dept. of Agriculture Forest Service Technical Publication R8-TP2, Athens, GA. 1305 pp.

  • Roth, D. 2008. Endangered Species List, Species Accounts for plants. Navajo Natural Heritage Program. Accessed online on Oct. 9, 2014 at: http://www.nndfw.org/nnhp/species_acct.pdf

  • Schotz, A.R. 2008. Rangewide status assessment of the small-flowered meadowbeauty (Rhexia parviflora). Alabama Natural Heritage Program, Auburn University, Alabama. Unpublished report for the United States Fish and Wildlife Service. 7 pp. + 4 Appendices.

  • Schotz, Albert R.  2008.  Rangewide status assessment of the small-flowered meadowbeauty (Rhexia parviflora).  Alabama Natural Heritage Program, Auburn University, Alabama.  Unpublished report for the United States Fish and Wildlife Service.  7 pp, plus 4 Appendices.

  • Small, J.K. 1933. Manual of the southeastern flora. Two volumes. Hafner Publishing Company, New York.

  • U.S. Fish and Wildlife Service. 2011m. Endangered and threatened wildlife and plants; partial 90-day finding on a petition to list 404 species in the southeastern United States as endangered or threatened. Federal Register 76(187):59836-59862.

  • WUNDERLIN, RICHARD P. 1982. GUIDE TO THE VASCULAR PLANTS OF CENTRAL FLORIDA. UNIV. PRESSES OF FLA., TAMPA, ST. PETERSBURG, FT. MEYERS, SARASOTA

  • Weakley, A.S. 2007. Flora of the Carolinas, Virginia, Georgia, and surrounding areas. Working draft of 11 January 2007. University of North Carolina Herbarium (NCU), North Carolina Botanical Garden, University of North Carolina at Chapel Hill. [http://www.herbarium.unc.edu/flora.htm (accessed 2007)]

  • Wunderlin, R.P. 1982. Guide to the vascular plants of central Florida. Univ. Presses Florida, Gainesville. 472 pp.

  • Wunderlin, R.P. and B.F. Hansen. 2003. Guide to the Vascular Plants of Florida. 2nd edition. University Press of Florida, Tampa. 788 pp.

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