Nyssa spp.
Nyssaceae
Tupelo

Tupelo contains about five species native to the United States [3] and eastern Asia [2]. The word nyssa is the name of a water nymph, so-called because the type species, Nyssa aquatica L., water tupelo, grows in water.

Nyssa aquatica bay-poplar, bastard cottonwood, big tupelo, bowl gum, chickasawatchie whitewood, cotton-gum, gray gum, gum cottonwood, hazel pine, hickory poplar, ladle gum, large tupelo, olivetree, pawpaw gum, rootwood tupelo, sap gum, sour gum, swamp gum, swamp poplar, swamp tupelo, trade tupelo, tupelo, tupelo gum, water gum, water tupelo, white gum, wild olivetree, yellow gum

Nyssa ogeche bee tupelo, gopher plum, limetree, ogeechee lime, lone tupelo, ogeeche gum, ogeechee plum, ogeechee tupelo, sour tupelo, sour tupelo gum, tupelo, white tupelo, white tupelo gum, wild limetree

Nyssa sylvatica blackgum, black tupelo, bowl gum, gum, pepperidge, plain black gum, quartered black gum, sour gum, stinkwood, swamp blackgum, swamp tupelo, tupelo, tupelo gum, yellow gum, yellow gumtree, wild pear-tree

Nyssa sylvatica blackgum, swamp blackgum, bouw gum, lowland black gum,

var. biflora lowland gum, sour gum, southern gum, swamp black gum, swamp tupelo, tupelo gum, water gum

Distribution: The eastern to southeastern United States.

The Tree: Tupelo trees reach heights of 100 ft (30 m), with a diameter of over 3 ft (1 m).

General Wood Characteristics: The sapwood of tupelo is a light gray-brown, while the heartwood is darker. The wood has interlocked grain, with a natural tendency to warp when dried, especially when flatsawn. It shows a characteristic figure when quartersawn. It has no characteristic odor or taste.


Weight                                     

                                   Weightb    

Species            MC     SGa   lb/ft3  kg/m3  

Nyssa aquatica  Green     0.46    NA      NA   

(water tupelo)  12%       0.50    NA      NA   

                Ovendry    NA     NA      NA   

Nyssa           Green     0.46    45     721   
sylvatica                                      

(black tupelo)  12%       0.50    35     561   

                Ovendry   0.55    NA      NA   

aData for green and 12% conditions taken   
from reference                             
 (98); ovendry data from reference (59).   
bData from reference (59).                 




Mechanical propertiesa                                        

Property             Green                      Dry             

Nyssa aquatica (water tupelo)                                 

   MOE     1.05  106      7.239 GPa   1.26  106       8.688 GPa   
           lbf/in2                    lbf/in2                     

   MOR     7.30  103      50.334 MPa  9.60  103       66.192 MPa  
           lbf/in2                    lbf/in2                     

   C| |    3.37  103      23.236 MPa  5.92  103       40.818 MPa  
           lbf/in2                    lbf/in2                     

   C       0.48  103      3.310 MPa   0.87  103       5.999 MPa   
           lbf/in2                    lbf/in2                     

   WML     8.30           57.229      6.90            47.576      
           in-lbf/in3     kJ/m3       in-lbf/in3      kJ/m3       

           710 lbf        3,158.08 N  880 lbf         3,914.24 N  
Hardness                                                          

   Shear|  1.19  103      8.205 MPa   1.59  103       10.963 MPa  
|          lbf/in2                    lbf/in2                     

Nyssa sylvatica (black tupelo)                                

   MOE     1.03  106      7.102 GPa   1.20  106       8.274 GPa   
           lbf/in2                    lbf/in2                     

   MOR     7.00  103      48.265 MPa  9.60  103       66.192 MPa  
           lbf/in2                    lbf/in2                     

   C| |    3.04  103      20.961 MPa  5.52  103       38.060 MPa  
           lbf/in2                    lbf/in2                     

   C       0.48  103      3.310 MPa   0.93  103       6.412 MPa   
           lbf/in2                    lbf/in2                     

   WML     8.00           55.160      6.20            42.749      
           in-lbf/in3     kJ/m3       in-lbf/in3      kJ/m3       

           640 lbf        2,846.72 N  810 lbf         3,602.88 N  
Hardness                                                          

   Shear|  1.10  103      7.584 MPa   1.34  103       9.239 MPa   
|          lbf/in2                    lbf/in2                     

aReference  (98).                                             




Drying and shrinkagea                                 

                              Percentage of shrinkage  
                                  (green to final      
                                 moisture content)     

Type of shrinkage              0% MC    6% MC    20% MC  

Tangential                                               

   Nyssa aquatica (water         7.6      6.1     2.5    
tupelo)                                                  

   Nyssa sylvatica (black        8.7      6.2     2.6    
tupelo)                                                  

Radial                                                   

   Nyssa aquatica (water         4.2      3.4     1.4    
tupelo)                                                  

   Nyssa sylvatica (black        5.1      3.5     1.5    
tupelo))                                                 

Volumetric                                               

   Nyssa aquatica (water        12.5     10.0     4.2    
tupelo)                                                  

   Nyssa sylvatica (black       14.4     11.1     4.6    
tupelo))                                                 

aReferences: 0% MC, (98); 6% and 20% MC, (90).        




Kiln drying schedulea                           

                       4/4, 5/4,   8/4     10/4    12/4  16/4  
Condition              6/4 stock   stock   stock  stock  stock 

Nyssa sylvatica          T12-E5   T11-D3  T11-D3  T9-C2  T7-C2 
(black tupelo)                                                 

Nyssa sylvatica var.     T10-E3    T8-D2    NA      NA    NA   
biflora (blackgum)                                             

aReferences (6, 86).                            



Working Properties: It is moderately strong, but difficult to glue.

Durability: Tupelo lacks any natural durability.

Preservation: Tupelo is permeable.

Uses: Furniture, shipping containers, millwork, veneer, plywood, crossties, bridge ties and crossing planks.

Toxicity: No information available at this time.

Additional Reading: 21, 29, 55, 68, 74. 55, 66, 68, 74, 79. 28, 29, 42, 43, 44, 48, 50, 55, 56, 68, 72, 73, 74, 79, 92, 97, 102. 74, 75, 77, 99, 106. 101.