Rare Trees of Georgia

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1 Dendrology Series WSFNR15-15 March 2015 Rare Trees of Georgia by Dr. Kim D. Coder, Professor of Tree Biology & Health Care, Warnell School of Forestry & Natural Resources, Georgia has an abundance of trees -- a number are wetland trees, and a number grow in upland areas. The diversity of tree species in their highly varied habitats, is immence across Georgia. Among Georgian trees are a few species of great rarity. These rare native trees are hidden ecological treasures. Rare trees are difficult to find in the field and have small populations. The federal and state government lists a number of these rare trees as endangered, threatened, or rare. Below is a table showing the distribution of rarity values among Georgia s selected rare trees. The species list which follows gives the rarest native trees in Georgia, listed by scientific name, common name, and relative rarity value of 1-6, with 1 being the rarest. Figure 1 provides a county distribution map for species (other than Crataegus) with rarity values 1, 2, and 3. Figure 2 shows the total number of the rarest tree species found in various Georgia regions. A roadtrip to find all these tree species would be a wonderful tree adventure! Rarity Value Number of Species Figure 1 In compliance with federal law, including the provisions of Title IX of the Education Amendments of 1972, Title VI of the Civil Rights Act of 1964, Sections 503 and 504 of the Rehabilitation Act of 1973, and the Americans with Disabilities Act of 1990, the does not discriminate on the basis of race, sex, religion, color, national or ethnic origin, age, disability, or military service in its administration of educational policies, programs, or activities; its admissions policies; scholarship and loan programs; athletic or other University-administered programs; or employment. In addition, the University does not discriminate on the basis of sexual orientation consistent with the University non-discrimination policy. Inquiries or complaints should be directed to the director of the Equal Opportunity Office, Peabody Hall, 290 South Jackson Street,, Athens, GA Telephone (V/TDD). Fax AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION INSTITUTION.

2 relative # scientific name common name rarity value 1 Acacia farnesiana sweet acacia 5 2 Acer spicatum mountain maple 6 3 Aesculus glabra Ohio buckeye 6 4 Aesculus parviflora bottlebrush buckeye 4 5 Alnus maritima Georgia alder 3 var. georgiensis 6 Carya laciniosa shellbark hickory 6 7 Carya myristiciformis nutmeg hickory 3* Chamaecyparis thyoides Atlantic white-cedar 3* 9 Cotinus obovatus American smoketree 3 10 Crataegus pulcherrima beautiful hawthorn 3 11 Crataegus triflora three-flower hawthorn 2* Elliottia racemosa Georgia plume 2* 13 Franklinia alatamaha Franklin tree 1X 14 Fraxinus quadrangulata blue ash 4 15 Ilex amelanchier serviceberry holly 5 16 Illicium floridanum Florida anise-tree 3* 17 Illicium parviflorum yellow anise-tree 5 1 Juglans cinerea butternut 4 19 Leitneria floridana corkwood 2* 20 Magnolia pyramidata pyramid magnolia 5 21 Morella inodora odorless bayberry 3* 22 Prunus mexicana Mexican plum 5 23 Prunus pensylvanica fire cherry 6 24 Quercus arkansana Arkansas oak 5 25 Quercus austrina bluff oak 4 26 Quercus chapmanii Chapman oak 6 27 Quercus imbricaria shingle oak 5 2

3 relative # scientific name common name rarity value Quercus oglethorpensis Oglethorpe oak 2* 29 Quercus prinoides dwarf chinkapin oak 6 30 Quercus similis swamp post oak 4 31 Quercus sinuata bastard (Durand) oak 4 32 Salix floridana Florida willow 1* 33 Sambucus simpsonii Southern elderberry 6 34 Sapindus marginatus wingleaf soapberry 4* 35 Sideroxylon alachuense silver bumelia 2 36 Sideroxylon thornei swamp bumelia 3* 37 Sorbus americana American mountain-ash 5 3 Torreya taxifolia Florida torreya 1** Tsuga caroliniana Carolina hemlock 1* 40 Ulmus serotina September elm 4 41 Zanthoxylum americanum Northern prickly-ash 5 symbol key: * = State of Georgia listed species; ** = federally listed species; X = extinct. 3

4 DADE 9 9 WALKER CHATTOOGA 7 FLOYD 7 POLK CATOOSA HARALSON CARROLL HEARD TROUP QUITMAN CLAY WHITFIELD GORDON PAULDING HARRIS EARLY COWETA CHATTA- HOOCHEE STEWART MILLER SEMINOLE MURRAY BARTOW 5 DOUGLAS MUSCOGEE MERIWETHER TALBOT MARION WEBSTER FANNIN GILMER PICKENS TERRELL RANDOLPH CALHOUN 16 DECATUR CHEROKEE COBB FULTON FAYETTE 19 PIKE CLAYTON UPSON SUMTER DOUGHERTY UNION LUMPKIN DAWSON FORSYTH TOWNS WHITE HALL RABUN HABERSHAM STEPHENS BANKS FRANKLIN HART JACKSON CLARKE OCONEE MADISON OGLETHORPE ELBERT HANCOCK WILKES TALIAFERRO WARREN WASHINGTON ECHOLS CLINCH LINCOLN McDUFFIE GLASCOCK JEFFERSON COLUMBIA EMANUEL GEORGIA RICHMOND CHARLTON BURKE JENKINS EVANS WAYNE BAKER PIERCE 36 BERRIEN ATKINSON MITCHELL COLQUITT BRANTLEY COOK WARE GRADY DEKALB SPALDING TAYLOR SCHLEY LEE GWINNETT HENRY LAMAR ROCKDALE BUTTS CRAWFORD MACON MONROE WORTH THOMAS NEWTON PEACH DOOLY HOUSTON CRISP BARROW WALTON JASPER BIBB JONES TURNER PULASKI TIFT MORGAN BROOKS TWIGGS 32 WILCOX PUTNAM BALDWIN BLECKLEY WILKINSON BEN HILL IRWIN GREENE DODGE LOWNDES LANIER LAURENS TELFAIR COFFEE JOHNSON WHEELER TREUTLEN JEFF DAVIS MONTGOMERY BACON TOOMBS APPLING CANDLER 36 TATTNALL SCREVEN BULLOCH LONG CAMDEN BRYAN LIBERTY 35 EFFINGHAM McINTOSH GLYNN CHATHAM Background map from Carl Vinson Institute of Government,. Figure 1: General county distribution of Georgia s rarest trees with rarity values of 1, 2, or 3. Numbers from rare species list. 4

5 DADE CATOOSA 4FANNIN TOWNS UNION RABUN MURRAY WALKER GILMER WHITE CHATTOOGA LUMPKIN GORDON STEPHENS PICKENS DAWSON HALL BANKS FRANKLIN HART FLOYD CHEROKEE BARTOW QUITMAN CLAY WHITFIELD CHATTA- HOOCHEE STEWART EARLY MILLER SEMINOLE MARION WEBSTER TERRELL RANDOLPH CALHOUN BAKER DECATUR SUMTER DOUGHERTY MITCHELL GRADY LEE FORSYTH MACON HABERSHAM JACKSON MADISON ELBERT POLK BARROW COBB CLARKE OGLETHORPE PAULDING 0 GWINNETT HARALSON WALTON DEKALB WILKES LINCOLN DOUGLAS FULTON CARROLL MORGAN GREENE NEWTON COLUMBIA HENRY COWETA WARREN HEARD 3JASPER PUTNAM RICHMOND SPALDING BUTTS HANCOCK PIKE BALDWIN JEFFERSON TROUP BURKE LAMAR MONROE JONES WASHINGTON UPSON BIBB WILKINSON JENKINS HARRIS TALBOT CRAWFORD JOHNSON TWIGGS MUSCOGEE MERIWETHER FAYETTE CLAYTON TAYLOR SCHLEY ROCKDALE PEACH OCONEE 7BEN HILL TURNER IRWIN WORTH TIFT BERRIEN COLQUITT COOK THOMAS DOOLY HOUSTON CRISP PULASKI BROOKS WILCOX BLECKLEY TALIAFERRO McDUFFIE GLASCOCK GEORGIA SCREVEN EMANUEL LAURENS 6 TREUTLEN BULLOCH CANDLER EFFINGHAM DODGE WHEELER EVANS TOOMBS BRYAN TATTNALL CHATHAM TELFAIR LOWNDES LANIER COFFEE ATKINSON JEFF DAVIS CLINCH MONTGOMERY BACON WARE APPLING PIERCE CHARLTON WAYNE BRANTLEY LONG CAMDEN LIBERTY McINTOSH GLYNN ECHOLS Background map from Carl Vinson Institute of Government,. Figure 2: Number of rarest tree species (rarity value 1, 2, or 3) by areas in Georgia. 5