The Big Trees of Patuxent Research Refuge
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The Big Trees of Patuxent Research Refuge |
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PINACEAE (Pine Family)
Picea pungens - blue spruce (diam. 30") - Superintendent's House
Picea abies - Norway spruce (diam. 31") - Bluegill Pond
(diam. 31") - Uhler Marsh Meadow Near Cedar
Tsuga canadensis - Eastern hemlock (diam 6") - Bluegill Creek (Plot 4473)
Pinus strobus - white pine (diam. 42"} - North Tract Loop Road Cemetery
(diam. 31") - Harding Spring Woods - dead from lightning in 1990s
(diam. 31”) – AA County near beaver pond on Mill Race Road
(diam. 31”) – Shaefer Farm
Pinus taeda - loblolly pine (diam. 28") - Visitor Center Exit Road
(diam. 26”) – Visitor Center Exit Road
(diam. 25") - Snowden Hall Meadow
Pinus rigida - pitch pine (diam. 30") - Cash Lake Trail (State Record)
Pinus virginiana - Virginia pine (diam. 32") - Snowden Hall Meadow
(diam. 23”) – PEPCO ROW woods near church
(diam. 22") - Snowden Pond Woods (Plot 2587)
Pinus echinata - shortleaf pine (diam. 16") - Visitor Center Exit Road
Pseudotsuga menziesii - Douglas fir (diam. 14") - Snowden Hall
TAXODIACEAE
Taxodium distichum - bald cypress (diam. 5") - Harding Spring Pond
CUPRESSACEAE
Thuja occidentalis – Northern white cedar (diam. 11”) – Shaefer Farm
Juniperus virginiana - red cedar (diam. 46") - Uhler Marsh Meadow
(diam. 27") - Crane Caretaker House
MAGNOLIACEAE (Magnolia Family)
Magnolia virginiana - sweetbay magnolia (diam. 9") - Snowden Hall Woods
Magnolia grandiflora - southern magnolia (diam. 27") - Entrance Road
Liriodendron tulipifera - tulip tree (diam. 72") - Beech Island (died in 1986)
(diam. 66") - Millrace Rd. Is. - Plot 2730
(diam. 59") - Beech Island
ANNONACEAE (Custard-apple Family)
Asimina triloba - pawpaw (diam. 5") - Duvall Bridge Woods
LAURACEAE (Laurel Family)
Sassafras albidum - sassafras (diam. 19") - Snowden Pond Woods
PLATANACEAE (Plane Tree Family)
Platanus occidentalis - sycamore (diam. 73") - Little Patuxent River bank
HAMAMELIDACEAE (Witch Hazel Family)
Liquidambar styraciflua - sweetgum (diam. 46") - Beech Island
(diam 44") - Near Excl. #5
ULMACEAE (Elm Family)
Ulmus americana - American elm (diam. 43") - Garden Woods
Celtis occidentalis - northern hackberry (diam. 19") - Visitor Center Entrance Road
MORACEAE (Mulberry Family)
Maclura pomifera - osage orange (diam. 12") - Stickel Lab.
(diam. 17") - Crane Caretaker House (??)
Broussonetia papyrifera - Paper mulberry (diam. ) - Birmingham Manor Site
Morus rubra - red mulberry
Morus alba - white mulberry (diam. 29") - Gabrielson Lab. (2005 split and fell over sidewalk)
JUGLANDACEAE (Walnut Family)
Juglans cinerea - butternut (diam. 25") - Duvall Bridge Rd. Gate
Juglans nigra - black walnut (diam. 41") - Cedar Lane House
Carya illinoiensis - pecan (diam. 50") - Nelson Lab
Carya cordiformis - bitternut hickory (in old plant list; none found recently)
Carya pallida - sand hickory (diam. 5”) – North Tract Airport area
Carya tomentosa - mockernut hickory (diam. 22") - Snowden Pond Rd. near ROW (Plot 3581)
Carya ovata - shagbark hickory (diam. 11") - Stickel Lab
Carya ovalis - sweet pignut hickory (in old plant list; none found recently)
Carya glabra - pignut hickory (diam. 34") - Beech Island (State Record)
(diam. 27") - River Road near Pin Oak
FAGACEAE (Beech Family)
Fagus grandifolia - American beech (diam. 54") - Beech Island
Castanea dentata - American chestnut (diam. 5") - Entrance Road (dead @ 2000)
Castanea mollissima - Chinese chestnut (diam. 20")
Quercus alba - white oak (diam 63") - Patuxent River - Plot 2712
Quercus stellata - post oak (diam. 38") - Log Cabin
Quercus lyrata - overcup oak (diam. 60") - U.S. Record in 1946 (died in 1972)
(diam. 39") - River Road Woods - Plot 3656
Quercus bicolor - swamp white oak (diam. 45") Patuxent River Swamp
Quercus michauxii - swamp chestnut oak (diam. 51") - Patuxent River - Plot 3712
Quercus prinus - chestnut oak (diam. 22") – PEPCO ROW woods near church
Quercus phellos - willow oak (diam. 61") - Farm Pond - Bad Crown
(diam 47”) - Snowden Hall Snake Tree (dead in 1988)
(diam. 45") - Gabrielson Lab Gazebo Area
Quercus marilandica - black-jack oak (diam 16") BGE ROW
Quercus ilicifolia - bear (scrub) oak
Quercus falcata - southern red oak (diam. 36") - Snowden Woods
Quercus velutina - black oak (diam. 48") - Apartment Woods
Quercus rubra - northern red oak (diam. 61") - Patuxent River (Blew Down in
Hurricane Isabel Sept 18, 2003)
Quercus palustris - pin oak (diam. 46") - River Road Woods near Green Ash
(diam. 38") - Patuxent River - Plot 3676
Quercus coccinea - scarlet oak (diam. 35”) – PEPCO ROW woods near church (3 stems)
(diam. 32") - Snowden Pond Woods near ROW
BETULACEAE (Birch Family)
Carpinus caroliniana - hornbeam (diam. 20") - River Road
Betula nigra - river birch (diam. 44") - U. S. Record in 1960s (can't find; presumed dead)
(diam. 32") - Cash Branch - Near Farm Pond - Plot 5413
(diam. 32") - Near Beech Is. - A.A. County
Betula papyrifera - white birch - power lines (can't find; presumed dead)
SALICACEAE
Populus alba - white poplar
Populus grandidentata - big-toothed aspen (diam. 21") - Visitor Center
Populus tremuloides - quaking aspen
Salix nigra - black willow - (diam. 21") - Uhler Marsh 2 (top rotted out)
(diam. 18") - Crane Chick Bldg. Well area (dead in 2006).
EBENACEAE (Ebony Family)
Diospyros virginiana - persimmon (diam. 25") - Log Cabin
ROSACEAE (Rose Family)
Pyrus communis – Pear (in old plant list; none found recently)
Pyrus calleryama – Bradford pear (diam. 20”) – Visitor Center
Malus angustifolia – Southern crabapple (diam. 24” in 1992) - Snowden Hall (died late 1990s)
Prunus serotina - black cherry (diam. 42") - Cedar Lane - Cut by PRR Facilities late 1990s
(diam. 34") - Gabrielson Lab. near Gazebo
(diam. 31") - Cedar Lane House
Prunus pensylvanica - pin cherry (in old plant list; none found recently)
Prunus avium - sweet cherry (diam. 34") - Butler Bldg. – died in late 1990s
Prunus americana - American plum (in old plant list; none found recently)
Prunus serrulata Kwanzan - Japanese cherry (diam. 32") - Stickel House
FABACEAE (Pea Family)
Robinia pseudoacacia - black locust (diam35") - Crane Caretaker House
(diam. 33") - Cedar Lane House
Gleditsia triacanthos inermis - thornless honey locust (diam. 28") - Merriam Lab
Cercis canadensis - Eastern redbud (diam. 13"; diam. 44" at base) – Director’s House
(diam. 10 ") - Stickel Lab.
Sophora japonica - pagoda tree (diam. 36") - Snowden Hall
CORNACEAE (Dogwood Family)
Cornus florida - flowering dogwood (diam. 15") - Crane Caretaker House
Nyssa sylvatica - black gum (diam. 28") - Snowden Woods
SIMAROUBACEAE
Ailanthus altissima - ailanthus - (diam. 13") - Crane Pens
AQUIFOLIACEAE (Holly Family)
Ilex opaca - holly (diam. 33") - Crane Caretaker House
(diam. 22") - Crane Caretaker House
HIPPOCASTANACEAE (Horse Chestnut Family)
Aesculus hippocastanum - horse chestnut (diam. 37") - Snowden Hall
ACERACEAE (Maple Family)
Acer platanoides - Norway maple (diam. 34") - Snowden Hall
Acer p. schwedleri – Schwedler’s maple (diam. 37”) - Crane Caretaker House
Acer pseudoplatanus - sycamore maple (diam. 12") - Cedar Lane (top broken @ 2002)
Acer rubrum - red maple (diam. 51") - near Beech Is. - A.A. County
(diam. 48") - Cash Branch near Farm Pond - Plot 5413
Acer saccharinum - silver maple - (diam. 60”) - Cedar Lane House
(diam. 45") - Millrace Rd. Island - Plot 2731
(diam. 44") - Snowden Lawn
Acer negundo - box-elder (diam. 32") - Millrace Rd. Island - Plot 2731
Acer palmatum - Japanese maple (diam. 13") - Nelson Lab
OLEACEAE (Olive Family)
Fraxinus americana - white ash (diam. 60") – MD Record in 1960s. Now presumed dead.
Fraxinus pennsylvanica - green ash (diam. 45") - River Road near sign
(diam. 43") - Beech Island
(diam. 39") - Beech Island
BIGNONIACEAE (Trumpet Creeper Family)
Catalpa speciosa - Northern catalpa (diam. 54") - Crane Caretaker House
Paulonia tomentosa - Royal Paulonia (diam. 9") - Near Meter Square Pens
CAPRIFOLIACEAE
Viburnum prunifolium - black haw
Last updated 6/2/2006
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