CPC National Collection Plant Profile

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CPC National Collection Plant Profile

Vaccinium sempervirens


Family: 
Ericaceae  
Common Name: 
Rayner's blueberry
Author: 
Rayner & Henderson
Growth Habit: 
Shrub, Subshrub
CPC Number: 
4363

Distribution
Protection
Conservation
References


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Vaccinium sempervirens


Rayner’s Blueberry is a small trailing or spreading heath found in Atlantic white cedar bogs and seepage slopes and endemic to Lexington County in the Sandhills of South Carolina. It produces few small white flowers in late March to early April and even fewer fruits. The leaves of Rayner’s blueberry superficially resemble those of the creeping blueberry (V. crassifolium), but can be distinguished by their larger size. Kirkman and Ballington (1990) reduced it to a subspecies V. crassifolium, but Weakley (2002) prefers to retain it as a species because of its distinct morphology. Rayner’s blueberry was first described in 1980 and is endangered in South Carolina.

Distribution & Occurrence

State Range
  South Carolina
State Range of  Vaccinium sempervirens
Habitat
  Trailing or spreading low-arching sub-shrub with semi-evergreen leaves. (Kirkman et al. 1989)

Distribution
  Slopes along the headwaters of Scouter Creek in Lexington County South Carolina (about 6 miles). Shealey's Pond in Lexington County contains the type specimen. (Kirkman et al. 1989)

Number Left
  Extremely uncommon endemic taxon with a very limited distribution. 3 populations known. (Kirkman et al. 1989)

Protection

Global Rank:  
G4G5T1
 
12/22/1997
Guide to Global Ranks
Federal Status:  
SC
 
1/19/1996
Guide to Federal Status
Recovery Plan:  
No
 

State/Area Protection
  State/Area Rank Status Date  
  South Carolina S1 6/19/1990  

Conservation, Ecology & Research

Ecological Relationships
  Found in a unique hillside seepage bog with a canopy of Chamaecyparis thyoides and Pinus serotina and also on some upland clay and sandstone outcroppings dominated by Pinus palustris (Kirkman et al. 1989). It is a poor sexual reproducer and asexual reproduction is by air layering and seems to determine colony size (Kirkman and Ballington 1989).

Threats
  Isolated population and restricted range.

Current Research Summary
  No current research underway.

Current Management Summary
  Populations occur on private land. No current management or protection is afforded (Bert Pittman, South Carolina Heritage Trust Program, pers. comm.)

Research Management Needs
  • Seed collection from all extant populations.
• Pollination ecology, basic community relationships, population genetic studies.

Ex Situ Needs
  • Further seed collection and propagation are needed.

References

Books (Single Authors)

Weakley, A.S. 2002. Flora of the Carolinas and Virginia, Working Draft. Unpublished--available on-line.

Books (Sections)

Kartesz, J.T. 1999. A synonymized checklist of the vascular flora of the U.S., Canada, and Greenland. In: Kartesz, J.T.; Meacham, C.A., editors. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden. Chapel Hill, NC.

Journal Articles

Kirkman, W.B. 1989. Vaccinium sempervirens Raf. - a Lost Synonym for Vaccinium ovatum Pursh. Rhodora. 91, 868: 279-281.

Kirkman, W.B.; Ballington, J.R. 1990. Creeping Blueberries (Ericaceae: Vaccinium sect. Herpothamnus) -- A New Look at V. crassifolium Including V. sempervirens. Systematic botany. 15, 4: 679.

Kirkman, W.B.; Wentworth, T.R.; Ballington, J.R. 1989. The ecology and phytosociology of the creeping blueberries, Vaccinium section Herpothamnus. Bulletin of the Torrey Botanical Club. 116: 114-133.

Rayner, D.A.; Henderson, J. 1980. Vaccinium sempervirens (ERICACEAE), a new species from Atlantic white-cedar bogs in the sandhills of South Carolina. Rhodora. 82: 503-507.

Shumway, S.W.; Banks, C.R. 2001. Species Distributions in Interdunal Swale Communities: The Effects of Soil Waterlogging. American Midland Naturalist. 145, 1: 137-146.

Reports

Gardner, R.K. 1996. Center for Plant Conservation 1996 Annual Report on Taxa in the National Collection. Institution: North Carolina Botanical Garden. St. Louis, MO: Center for Plant Conservation.


  This profile was updated on 3/4/2010
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