Pennsylvania Rucker Index Site Comparisons (2/6/04)
(Average of 10 Tallest Species within a Site)
(Bold denotes record status)
Eastern Native Tree Society (ENTS) members involved in measuring the following trees:
Dale Luthringer, Environmental Education Specialist, Cook Forest State Park
Will Blozan, President and Co-founder, ENTS
Robert Leverett, Co-founder, ENTS and Co-founder/Executive Director, Friends of Mohawk Trail State Forest (FMTSF)
Dr. Robert Van Pelt, Forest Ecologist, University of Washington
Colby Rucker, Retired, State of Maryland
Dr. Tom Diggins, Professor, Youngstown State University
Jack Sobon, Architect and Timber Framer
Ron Busch, Arborist North Carolina
Cook Forest State Park
Species CBH Height Rucker Index Status
E. white pine 11.1 181.3 135.27 tied 3rd tallest tree in E. U.S.  
E. hemlock 11.8 145.3 tied tallest NE  
black cherry 11.4 140 2nd tallest E. U.S.  
tuliptree 8.2 136.6  
white ash 7.6 128.3  
red maple 9 126  
white oak 10.6 124.8 tallest NE U.S  
Am. Beech 7.9 124.4 tallest PA  
cucumbertree 7.5 123.1 tied tallest NE  
N. red oak 9.5 122.9    
Wintergreen Gorge, PSU Behrend Campus
Species CBH Height Rucker Index Status
tuliptree 9.5 145.4 127.89    
red maple 7.8 136.6 tallest NE U.S.  
white ash 9.9 129.8  
sycamore 7.7 129.7  
E. hemlock 8.2 124.2    
slippery elm 8.8 123.7 tallest NE U.S.  
sugar maple 5.7 123.4 tallest PA  
cucumbertree 8.6 123.1 tallest NE U.S.  
Am. Basswood 9 121.7 tallest PA  
black cherry 8.8 121.3  
 
Fairmont Park, Philadelphia, PA
Specie CBH Height Rucker Index Status
tuliptree 10.9 158.6 127.72 tallest NE. U.S.
sycamore 11.4 139 tallest PA
white ash 7.3 135.7 tallest PA
N. red oak 9.7 135.2 tallest NE. U.S.
bitternut hickory 6.7 134.2 tallest PA
black walnut 5.4 121.1 tallest PA
Am. Beech 6.8 118
black oak 9.6 116.7 tallest PA
sweet cherry 5.7 113.5 tallest PA
E. hemlock 10.6 106.2
Walnut Creek Gorge, Fairview, PA
Specie CBH Height Rucker Index Status
tuliptree 9.5 135.5 120.6
sycamore 15.3 133.8  
white ash 8.2 124.2
Am. Beech 15.7 119.3
sugar maple 9.6 118.8
UI tree 6.6 117.8
black locust 7.6 116.5
bitternut hickory 6.4 115
shagbark hickory 6.3 112.8
E. hemlock N/A 112.3
Rickett Glen S.P. (includes The Glens N.A. & Boston Run N.A.)
Specie CBH Height Rucker Index Status
white pine 10.4 144.6 119.85  
tuliptree 8.8 138.2
E. hemlock 11.8 128.9
white ash 8.7 127.6
cucumbertree 5.4 115.8
sugar maple 11 113.5
red maple 7.6 110.6+
N. red oak 9.3 106.8
Am. Basswood 5.4 106.6+
shagbark hickory 5.1 105.9
 
Ander's Run Natural Area  
Specie CBH Height Rucker Index Status  
 
E. white pine 12.9 163.8 118.65  
E. hemlock 7.5 125.4  
black cherry 6.6 121.8  
Am. Basswood 8.1 120.7    
white ash 7.2 116.9  
red maple 4.4 116  
shagbark hickory 5.3 111  
white oak 6.9 105.7  
N. red oak 5.8 104.8  
Am. Beech 4.3 100.4  
Heart's Content Natural Area
Species CBH Height Rucker Index Status
white pine 9.9 162 113.79  
E. hemlock 9.4 127.8  
red maple 6.8 119  
cucumbertree 8.8 114.1  
Am. Beech 6.2 109.8  
white oak 7.8 108.4  
black cherry 4.6 106.4  
N. red oak 11.1 98.6  
chestnut oak 7.5 97.6  
black birch 5.7 94.2  
Alan Seeger Natural Area
Species CBH Height Rucker Index Status  
tuliptree 8.9 137.7 111.13  
white pine 8.6 137.6  
E. hemlock 11.2 118.2  
white ash 5.7 111.1  
N. red oak 8.8 108.1+  
white oak 6.9 108.1+  
red maple 5.8 105.1+  
cucumbertree 5.2 102.2  
chestnut oak 8 96.1+  
black gum 6.6 87.1+  
   
Coho Property (Eagle's Nest), North Springfield, PA
Species CBH Height Rucker Index Status
tuliptree 8.4 140.3 109.59
N. red oak 9.7 123.4
white ash 7.4 120.5
E. hemlock 6.2 106.5  
sugar maple N/A 104.6
butternut 5.7 104.6 tallest PA
Am. Beech 9.1 101.5  
cottonwood 7.8 99.7
sassafrass 5.1 98.4 tallest NE US
sycamore 14.7 96.4
Tionesta Scenic Area
Species CBH Height Rucker Index Status
E. hemlock 12.4 134.6 109.36  
black cherry 16.1 121.5  
tuliptree 7.6 119+  
red maple 8.6 113.9  
Am. Beech 6.9 108.9  
white ash 9 107.2  
sugar maple 6 106.5  
yellow birch 9 99.1+    
black birch 5.3 92.9  
cucumbertree 4.5 90+  
Glenwood Park  (Erie, PA urban old growth?)
Specie CBH Height Rucker Index Status  
 
tuliptree 10.1 113.9 98.08  
sugar maple N/A 110.3  
shagbark hickory 9.5 106.3  
white oak 12.7 104.5  
red maple 9 100.1  
black cherry 7 99.1+    
Am. beech N/A 95  
N. red oak 11.6 90.8  
Am. basswood 7.5 90.1+  
E. hophornbeam 3.4 70.7
980.8  
Parker Dam S.P. (Penfield, PA)  
Specie CBH Height Rucker Index Status  
 
white ash 7.6 114.8 85.57  
N. red oak N/A 114.1  
cucumbertree N/A 114  
tuliptree 7.3 113.3  
Am. Basswood 6.8 108.1+  
sugar maple 9.1 107.1  
shagbark hickory 4.6 104.2  
white oak N/A 89.2
E. hophornbeam 3.3 63.6
Hercules club 1.5 35.4