| | Species | CBH | Height (ft) | County | Nominator |
| Select | Algerian Fir | 72 | 72.7 | Chester | Longwood Staff |
| Select | American Beech | 192 | 120.1 | Erie | Dale Luthringer |
| Select | American Holly | 84 | 54.2 | Chester | Longwood Staff |
| Select | American Sycamore | 146 | 148.3 | Forest | Dale Luthringer |
| Select | Ashei Magnolia | 62 | 44 | Montgomery | Betsy Davis, Scott Wade |
| Select | Atlas Cedar | 202 | 76 | Chester | Longwood Staff |
| Select | Bald Cypress | 172 | 111 | Chester | Rick Koval |
| Select | Balkan Pine | 66 | 33 | Chester | Longwood Gardens staff |
| Select | Balsam Fir | 160 | 104 | Adams | Ray Brooks |
| Select | Bartram Oak | 194 | 94.9 | Chester | Rick Koval, Peter Johnson |
| Select | Bastard White Oak | 56 | 37.8 | Montgomery | Scott Wade |
| Select | Bear Oak | 18 | 16.7 | Montgomery | Scott Wade, Rick Ray |
| Select | Bender Oak | 262 | 87 | Philadelphia | Steven Wright, Tom Schoonmaker |
| Select | Bitternut Hickory | 84 | 140.7 | Delaware | George Fieo |
| Select | Black Cherry | 106 | 140.7 | Clarion | Dale Luthringer |
| Select | Black Oak | 106 | 132.7 | Philadelphia | George Fieo |
| Select | Black Spruce | 72 | 37 | Delaware | Martha Van Artsdalen, Mike Startup |
| Select | Blackhaw Viburnum | 29 | 22.9 | Chester | Brian Lambert |
| Select | Blue Ash | 64 | 55.7 | Chester | Longwood Gardens Big Tree Tour 2007 |
| Select | Blue Eastern Red Cedar | 92 | 69 | Philadelphia | George Fieo |
| Select | Boulevard Cypress | 55 | 36.7 | Delaware | Scott Wade |
| Select | Canadian Hemlock | 145 | 147.5 | Clarion | Dale Luthringer |
| Select | Carolina Hemlock | 59 | 55 | Chester | Longwood Staff |
| Select | Carolina Silverbell | 73 | 66.9 | Philadelphia | Friends Hospital staff |
| Select | Castor Aralia | 167 | 65 | Chester | Longwood Gardens Big Tree Tour 1999 |
| Select | Caucasian Oak, Persian Oak | 143 | 79.4 | Chester | Longwood Gardens Staff |
| Select | Caucasian Zelkova | 192 | 90 | Philadelphia | Alan Wood, Courtney Allen |
| Select | Cedar of Lebanon | 217 | 87 | Delaware | Robert McElroy |
| Select | Chalk Maple | 62 | 62 | Montgomery | Scott Wade, Rick Ray |
| Select | Chilgoza Pine | 27 | 25 | Chester | Longwood Staff |
| Select | China Fir | 74 | 78.6 | Chester | Longwood Gardens Big Tree Tour 1999 |
| Select | China Fir | 36 | 47.6 | Chester | Longwood Gardens Big Tree Tour 2007 |
| Select | Chinese Catalpa | 92 | 65.3 | Berks | Jim Smoker |
| Select | Chinese Fringe Tree | 173 | 19.7 | Chester | Longwood Staff |
| Select | Chinese Scholar Tree | 186 | 88 | Philadelphia | Longwood Gardens Big Tree Tour 2004 |
| Select | Chinese Stewartia | 11 | 14.6 | Chester | Longwood Staff |
| Select | Chinese Toon | 92 | 79.6 | Berks | Rick Hartlieb |
| Select | Chinese Wingnut | 109 | 81.4 | Chester | Longwood Gardens Big Tree Tour 1999 |
| Select | Chinkapin Oak | 254 | 75.3 | Berks | Albert Mickalitis, Tom DeLong, Maurice Hobaugh |
| Select | Cilician Fir | 80 | 86.6 | Chester | Longwood Gardens Big Tree Tour 2007 |
| Select | Coliseum maple | 57 | 81.7 | Berks | Jim Smoker |
| Select | Common Witch hazel | 10 | 42 | Clarion | Dale Luthinger |
| Select | Cordate Cucumber Magnolia | 155 | 84.4 | Chester | Dr. John Swartley, Robert Fitterling |
| Select | Cornelian Cherry | 28 | 37 | Chester | Longwood Staff |
| Select | Cornelian Cherry | 25 | 25.6 | Delaware | Styers Nursery |
| Select | Crack Willow | 266 | 79 | Cambria | |
| Select | Cucumber Magnolia | 122 | 131.6 | Lawrence | Ed Frank, Carl Harting, Anthony Kelly, Dale Luthringer |
| Select | Cut Leaf Japanese Maple | 31 | 15.1 | Montgomery | Greg Nichols |
| Select | Cutleaf European Beech | 197 | 70 | Chester | Longwood Staff |
| Select | David Maple | 71 | 58.7 | Delaware | Tom Kirk |
| Select | Dawn Redwood | 125 | 131.2 | Chester | Dave Thompson, Scott Wade |
| Select | Devil's Walking Stick | 19 | 26.9 | Delaware | Scott Wade |
| Select | Dotted Hawthorn | 59 | 42.5 | Warren | Ed Frank, Anthony Kelly, Dale Luthringer |
| Select | Douglas Fir | 106 | 95 | Chester | Longwood Gardens Big Tree Tour 1999 |
| Select | Dove Tree | 56 | 53.6 | Delaware | Dr. Joesph Kassab, Dr. Blake Gibson, Maurice Hobaugh |
| Select | Downy Hawthorn | 57 | 35 | Chester | Longwood Staff |
| Select | Dragon Spruce | 66 | 48 | Chester | Longwood Staff |
| Select | Durmast Oak | 74 | 69.1 | Chester | Longwood Gardens Staff |
| Select | Dutch Elm | 170 | 94 | Chester | Longwood Staff |
| Select | Eastern Red Cedar | 109 | 79.1 | Delaware | |
| Select | Eastern White Pine | 134 | 184.7 | Clarion | Dale Luthringer |
| Select | English Holly | 75 | 30 | Chester | Longwood Staff |
| Select | English Holly | 34 | 34.5 | Chester | Longwood Staff |
| Select | English Yew | 144 | 48.3 | Berks | James Smoker |
| Select | European Beech | 257 | 102.5 | Philadelphia | Trish Fries |
| Select | European Copper Beech | 227 | 116.2 | Delaware | Longwood Gardens Big Tree Tour 2008 |
| Select | European Linden | 187 | 103.3 | Chester | Longwood Gardens Big Tree Tour 1998 |
| Select | European Weeping Beech | 145 | 64.7 | Chester | Larry Andress, Gene Ring, Denise Dunn, Peter Johnson |
| Select | European White Elm | 91 | 50.8 | Chester | Longwood Gardens staff |
| Select | Farges Fir | 53 | 57 | Delaware | Martha Van Artsdalen, Mike Startup |
| Select | Fastigiate English Oak | 92 | 68 | Lebanon | Charles Wertz, Gene Odato |
| Select | Fragrant Snowbell | 35 | 35 | Chester | Longwood Staff |
| Select | Franklin Tree | 42 | 33 | Montgomery | Dr. John Swartley, Ronald Langford, Robert Fitterling |
| Select | Fraser Magnolia | 66 | 73.6 | Montgomery | Scott Wade, Rick Ray |
| Select | Fringe Tree | 17 | 24.2 | Chester | Longwood Staff |
| Select | Giant Dogwood | 76 | 40.3 | Delaware | Maurice Hobaugh, Dr. William Gibson |
| Select | Giant Sequoia | 155 | 95.4 | Delaware | Albert Mickalitis, Mark Robinson, Robert MacDonald, Mark Hoffmann |
| Select | Goat Willow | 143 | 41.4 | Chester | Longwood Gardens Staff |
| Select | Golden Larch | 79 | 76 | Chester | Longwood Staff |
| Select | Golden Rain Tree | 82 | 61 | Lebanon | Ted Frey, Charles Huber, Fritz & Robert Heilman, Gene Odato |
| Select | Greek Fir | 132 | 94.2 | Philadelphia | Brian Lambert, Aaron Lambert |
| Select | Green Ash | 115 | 142.5 | Philadelphia | George Fieo |
| Select | Grey Dogwood | 13 | 19 | Westmoreland | William Paxton |
| Select | Hackberry | 147 | 114.2 | Chester | George Fieo, Tim Mullray |
| Select | Hamilton's Spindletree | 40 | 28.7 | Chester | Longwood Gardens Staff |
| Select | Hardy Rubber Tree | 100 | 50 | Chester | Longwood Gardens Big Tree Tour 1999 |
| Select | Hedge Maple | 135 | 49.4 | Chester | Longwood Gardens staff |
| Select | Henry Hornbeam | 31 | 21.6 | Chester | Longwood Gardens Staff |
| Select | Higan Cherry | 157 | 57 | Chester | Longwood Staff |
| Select | Himalayan Pine | 100 | 79.8 | Delaware | Greg Nichols |
| Select | Hinoki Cypress | 88 | 75 | Delaware | Longwood Gardens Big Tree Tour 2005 |
| Select | Hinoki Cypress | 71 | 41 | Delaware | Scott Wade, Meg Varnes |
| Select | Hubei Hackberry | 37 | 25.3 | Chester | Longwood Gardens staff |
| Select | Igiri Tree | 88 | 63.2 | Delaware | Tom Kirk |
| Select | Incense cedar | 98 | 86 | Chester | Longwood Staff |
| Select | Ivy Leaved Maple | 69 | 31.8 | Chester | Longwood Staff |
| Select | Japanese Alder | 48 | 43.2 | Chester | Longwood Gardens staff |
| Select | Japanese Alder | 55 | 43.2 | Chester | Longwood Gardens staff |
| Select | Japanese Angelica Tree | 24 | 37.6 | Philadelphia | George Fieo |
| Select | Japanese Catalpa | 55 | 34.4 | Chester | Longwood Gardens staff |
| Select | Japanese Cedar | 74 | 66.6 | Lebanon | Fritz & Robert Heilman, Ted Frey, Charles Huber, Gene Odato |
| Select | Japanese Cedar | 111 | 62.5 | Chester | Longwood Staff |
| Select | Japanese Cedar | 70 | 65.7 | Chester | Longwood Staff |
| Select | Japanese Chestnut | 103 | 53 | Chester | Longwood Staff |
| Select | Japanese Cork Tree | 42 | 24.2 | Chester | Longwood Gardens staff |
| Select | Japanese Cornel Dogwood | 19 | 35 | Chester | Longwood Staff |
| Select | Japanese Emperor Oak | 75 | 75 | Chester | Longwood Staff |
| Select | Japanese Flowering Cherry | 163 | 34.8 | Chester | Longwood Staff |
| Select | Japanese Flowering Cherry | 140 | 47.3 | Chester | Longwood Staff |
| Select | Japanese Linden | 140 | 55.5 | Delaware | Greg Nichols |
| Select | Japanese Spruce | 100 | 90.2 | Chester | Larry Wheeler |
| Select | Japanese Stone Pine | 28 | 20 | Chester | Longwood Staff |
| Select | Japanese Torreya | 38 | 45.3 | Berks | Jim Smoker |
| Select | Japanese Umbrella Pine | 90 | 75 | Chester | Larry Wheeler |
| Select | Japanese White Pine | 90 | 74 | Delaware | Martha Van Artsdalen, Mike Startup |
| Select | Japanese Yellowwood | 79 | 37.4 | Chester | Longwood Staff |
| Select | Japanese Zelkova | 278 | 92 | Delaware | Scott Wade |
| Select | Katsura | 262 | 86 | Montgomery | Scott Wade |
| Select | Kentucky Coffee Tree | 100 | 110 | Chester | Longwood Staff |
| Select | Kobushi Magnolia | 86 | 45 | Montgomery | Josephine Henry, Maurice Hobaugh |
| Select | Korean Dogwood | 91 | 40 | Chester | Longwood Staff |
| Select | Korean Fir | 151 | 92.1 | Chester | Longwood Staff |
| Select | Korean Mountain Ash | 21 | 30 | Chester | Longwood Staff |
| Select | Korean Pine | 71 | 42 | Chester | Longwood Staff |
| Select | Lacebark Pine | 110 | 56 | Philadelphia | Steven Wright, Tom Schoonmaker |
| Select | Large Leaved Lime | 146 | 76.1 | Berks | Jim Smoker |
| Select | Laurel Oak | 32 | 30.8 | Chester | Longwood Gardens Staff |
| Select | Leyland Cypress | 88 | 57.5 | Chester | Longwood Staff |
| Select | Leyland Cypress | 73 | 66.1 | Delaware | Scott Wade |
| Select | Limber Pine | 54 | 62 | Delaware | Martha Van Artsdalen, Mike Startup |
| Select | Limber Pine | 66 | 48.3 | Chester | Longwood Staff |
| Select | Little Epaulettetree | 17 | 21.7 | Chester | Longwood Gardens Staff |
| Select | Littlehip Hawthorne | 30 | 17.3 | Montgomery | Scott Wade |
| Select | Loblolly Pine | 102 | 85.5 | Delaware | Scott Wade |
| Select | London Plane Tree | 143 | 111 | Chester | Longwood Staff |
| Select | Long Leaf Pine | 66 | 64.2 | Delaware | Scott Wade, Rick Ray |
| Select | Maidenhair Tree | 184 | 112.5 | Chester | Dave Thompson, Scott Wade |
| Select | Manchurian Alder | 89 | 50.3 | Chester | Longwood Gardens Staff |
| Select | Manchurian Fir | 139 | 84.1 | Philadelphia | Scott Wade, Jim Smoker |
| Select | Mexican White Pine | 94 | 91 | Lancaster | Scott Wade |
| Select | Min Fir | 23 | 38.6 | Chester | Longwood Staff |
| Select | Mockernut Hickory | 77 | 134.6 | Delaware | George Fieo |
| Select | Momi Fir | 98 | 97 | Chester | Longwood Staff |
| Select | Mongolian Linden | 82 | 54 | Lebanon | Gene Odato |
| Select | Mono Maple | 189 | 67 | Philadelphia | Steven Wright, Tom Schoonmaker |
| Select | Mountain Laurel | 30 | 18.7 | Montgomery | Rick Ray, Scott Wade |
| Select | Mountain Maple | 17 | 26 | Cameron | Dale Luthringer |
| Select | Mountain Silverbell | 151 | 77.2 | Philadelphia | |
| Select | Needle Juniper | 41 | 50.9 | Delaware | Maurice Hobaugh, Dr. William Gibson |
| Select | Nootka Falsecypress | 59 | 44 | Chester | Longwood Staff |
| Select | Northern Japanese Hemlock | 36 | 30 | Delaware | Martha Van Artsdalen, Mike Startup |
| Select | Northern Pin Oak | 134 | 76 | Philadelphia | Steven Wright, Tom Schoonmaker |
| Select | Norway Spruce | 126 | 137.4 | Warren | Dale Luthinger, Denny Benedict |
| Select | Nuttall Dogwood | 41 | 42.3 | Delaware | Scott Wade |
| Select | Nuttall Oak | 122 | 82.5 | Philadelphia | George Fieo |
| Select | Ohio Buckeye | 96 | 73.9 | Berks | Jim Smoker |
| Select | Oriental Arborvitae | 66 | 29.6 | Chester | Longwood Staff |
| Select | Oriental Hackberry | 20 | 20.2 | Chester | Longwood Gardens Staff |
| Select | Oriental Oak | 88 | 92 | Chester | Dave Thompson, Scott Wade |
| Select | Oriental Spruce | 84 | 100 | Chester | Longwood Staff |
| Select | Overcup Oak | 215 | 97.3 | Montgomery | Joseph Christopher |
| Select | Pagoda Dogwood | 14 | 19.4 | Chester | Longwood Staff |
| Select | Panicle Hydrangea | 72 | 25 | Chester | Scott Wade |
| Select | Paperbark Maple | 56 | 39 | Philadelphia | Steven Wright, Tom Schoonmaker |
| Select | Pear Fruit Cork Tree | 56 | 24.1 | Chester | Longwood Gardens staff |
| Select | Pendant Linden | 205 | 95.1 | Chester | Maurice Hobaugh, Mark Hoffman, Don Nieweg |
| Select | Persian Ironwood | 159 | 42 | Philadelphia | Steven Wright, Tom Schoonmaker |
| Select | Persimmon | 26 | 17.2 | Chester | Longwood Staff |
| Select | Pignut Hickory | 90 | 137.9 | Adams | Dale Luthringer, Bill Sweeney |
| Select | Pink Flowering Dogwood | 74 | 33.9 | Delaware | Scott Wade |
| Select | Pond Cypress | 73 | 83.5 | Clarion | Will Blozan, Dale Luthinger |
| Select | Prickly-ash | 24 | 23 | Philadelphia | Steven Wright, Tom Schoonmaker |
| Select | Red Buckeye | 34 | 23 | Chester | Longwood Staff |
| Select | Red Hickory | 98 | 101 | Susquehanna | SCFLOA |
| Select | Red Oak | 221 | 144.8 | Delaware | George Fieo |
| Select | Red Pine | 132 | 84.4 | Erie | Gene Odato |
| Select | Rosemary Willow | 47 | 19.3 | Chester | Longwood Staff |
| Select | Sakhalin Cork Tree | 104 | 58.6 | Chester | Longwood Gardens Big Tree Tour 1999 |
| Select | Sakhalin Spruce | 72 | 48 | Delaware | Mike Startup |
| Select | Sandpaper Oak | 17 | 19.3 | Montgomery | Rick Ray, Scott Wade |
| Select | Sassafras | 131 | 75 | Philadelphia | Scott Wade, Megan Varnes, Fran Lawn |
| Select | Sawtooth Oak | 120 | 90.1 | Delaware | Tom Kirk |
| Select | Scotch Pine | 84 | 59.7 | Delaware | Scott Wade |
| Select | Shagbark Hickory | 74 | 131 | Delaware | George Fieo |
| Select | Shantung Maple | 53 | 29 | Chester | Longwood Staff |
| Select | Shensi Fir | 100 | 70 | Delaware | Martha Van Artsdalen, Mike Startup |
| Select | Shingle Oak | 138 | 90.7 | Montgomery | George Fieo |
| Select | Shumard Oak | 138 | 71.1 | Chester | Dave Thompson, Scott Wade |
| Select | Siberian Spruce | 48 | 57 | Delaware | Martha Van Artsdalen, Mike Startup |
| Select | Sicilian fir | 61 | 34.3 | Chester | Longwood Gardens Staff |
| Select | Silver Linden | 164 | 82.2 | Chester | 1999 Longwood Gardens Big Tree Tour |
| Select | Silver Maple | 217 | 104.3 | Warren | Dale Luthringer |
| Select | Sitka Spruce | 84 | 38 | Delaware | Martha Van Artsdalen, Mike Startup |
| Select | Slippery Elm | 97 | 131.5 | Crawford | Dale Luthringer |
| Select | Smoothleaf Elm | 150 | 89.7 | Chester | Longwood Gardens staff |
| Select | Sourwood | 63 | 92 | Fayette | Steve Halow |
| Select | Southern Catalpa | 80 | 15 | Lebanon | Longwood Gardens Big Tree Tour 2009 |
| Select | Southern Shagbark Hickory | 110 | 96 | Philadelphia | Brian & Aaron Lambert |
| Select | Southwestern White Pine | 26 | 31.6 | Chester | Longwood Staff |
| Select | Speckled Alder | 78 | 64.5 | Chester | Longwood Staff |
| Select | Stinking Cedar | 30 | 38.2 | Montgomery | Scott Wade |
| Select | Striped Maple | 25 | 45.1 | Clarion | Shade Tree Ln., entrance, follow gated trail about 200 yds, tree is on the right. Measured @ 3' |
| Select | Sugar Pine | 137 | 95.2 | Montgomery | Edward Starr |
| Select | Sweet Birch | 102 | 102.6 | Delaware | Scott Wade |
| Select | Sweet Cherry | 290 | 96 | Chester | Pat & Charles Youngblood, Maurice Hobaugh |
| Select | Sweetbay Magnolia | 35 | 37 | Philadelphia | Alan Wood, Courtney Allen |
| Select | Swiss Stone Pine | 48 | 42 | Delaware | Martha Van Artsdalen, Mike Startup |
| Select | Tall Stewartia | 37 | 41.4 | Montgomery | Henry Foundation |
| Select | Tatar Maple | 76 | 30.8 | Berks | Jim Smoker |
| Select | Three flowered Maple | 19 | 18.8 | Chester | Longwood Staff |
| Select | Tigertail Spruce | 72 | 49 | Delaware | Martha Van Artsdalen, Mike Startup |
| Select | Tree of Heaven | 88 | 104.3 | Delaware | Scott Wade |
| Select | Trident Maple | 132 | 68 | Philadelphia | Steven Wright, Tom Schoonmaker |
| Select | Tulip Poplar | 140 | 163.3 | Chester | Scott Wade |
| Select | Tupelo | 181 | 74.1 | Chester | Thomas Asbaugh, Maurice Hobaugh |
| Select | Turkey Oak | 165 | 70 | Berks | James Smoker |
| Select | Two Winged Silverbell | 15 | 24.2 | Chester | Longwood Staff |
| Select | Umbrella Magnolia | 66 | 48.4 | Bucks | Dr. John Swartley, Carol McKelvey, David Benner |
| Select | Unknown Fir | 83 | 81.4 | Delaware | Tom Kirk |
| Select | Veitch's Fir | 48 | 32.9 | Chester | Longwood Gardens Staff |
| Select | Vernal Witch hazel | 15 | 27.9 | Delaware | Scott Wade |
| Select | Virginia Pine | 74 | 101 | Berks | George, Rane, and Timmy Fieo |
| Select | Water Oak | 79 | 84.4 | Delaware | Scott Arboretum Volunteers Big Tree Tour Fall 2008 |
| Select | Weeping Canadian Hemlock | 130 | 26 | Delaware | Greg Nichols |
| Select | Weeping Norway Spruce | 50 | 31.6 | Delaware | Longwood Gardens Big Tree Tour 2007 |
| Select | Western White Pine | 109 | 80.2 | Chester | Longwood Gardens Big Tree Tour 1999 |
| Select | White Ash | 100 | 143.9 | Delaware | George Fieo |
| Select | White Barked Himalayan Birch | 81 | 65 | Chester | Longwood Staff |
| Select | White Fir | 72 | 92 | Chester | Longwood Staff |
| Select | White Mulberry | 207 | 59 | Philadelphia | Steven Wright, Tom Schoonmaker |
| Select | White Oak | 130 | 131.9 | Delaware | George Fieo |
| Select | White Poplar | 97 | 59.2 | Berks | Jim Smoker |
| Select | White Spruce | 83 | 75 | Chester | Longwood Staff |
| Select | Willow Oak | 227 | 108.3 | Montgomery | Edward Starr |
| Select | Winterberry Euonymus | 41 | 28.6 | Chester | Longwood Gardens Staff |
| Select | Yellow Buckeye | 163 | 120.5 | Chester | Longwood Gardens Big Tree Tour 2000 |
| Select | Yulan Magnolia | 86 | 67.6 | Delaware | Scott Wade |