Quercus macrocarpa, (bur oak), habit, winter (3.47265)
Date: January 1970Creator: Keller, C. R.
Type: Photographic image
Description:Quercus macrocarpa (bur oak), two tall and bare trees amongst trees with snow on dense branches and on ground
Extent: 1 slide
Quercus rubra (northern red oak), emerging flowers and leaves detail (3.57779)
Date: April 1978Creator: Kohout, Kitty
Type: Photographic image
Description:Quercus rubra (northern red oak), close-up section of twig with several yellowish-green hanging catkins and two tiny female flowers in axils of new pale green leaves, and inset image detailing section of female flower with magnified view of fuzzy red spike
Extent: 1 slide
Quercus phellos (willow oak), habit, fall (3.57807)
Date: November 1969Type: Photographic image
Description:Quercus phellos (willow oak), mature tree, round crown covered with dark green leaves and smooth bark on tall trunk, near wooden fence and amongst trees
Extent: 1 slide
Quercus macrocarpa (bur oak) and Quercus rubra (northern red oak), bud detail (3.47303)
Type: Photographic image
Description:Quercus macrocarpa (bur oak) and Quercus rubra (northern red oak), closeup detail of buds at tips of two twigs with lenticels and leaf scars, side by side and set against black background, showing cluster of small pointed buds atop ashy pale gray twig on left alongside another twig with several reddish pointed buds clustered at end and one lateral near tip
Extent: 1 slide
Quercus rubra (northern red oak), twig in bloom (3.57785)
Date: May 1966Creator: Scott, Marion
Type: Photographic image
Description:Quercus rubra (northern red oak), close-up showing new bristle-tipped, reddish-green leaves, two solitary tiny red female flowers in leaf axils and several drooping pale green catkins, on a section of pale gray twig with a reddish-brown pointed bud and two immature acorn cups set against blue background
Extent: 1 slide
Quercus acerifolia (maple-leaved oak), leaves (3.38296)
Date: August 1994Creator: Nachel, Jim
Type: Photographic image
Description:Quercus acerifolia (maple-leaved oak), clusters of green leaves
Extent: 1 slide
Quercus bicolor (swamp white oak), habit (3.38410)
Date: May 1977Creator: Kohout, Kitty
Type: Photographic image
Description:Quercus bicolor (swamp white oak), habit, bare tree with dense branches amongst other bare trees
Extent: 1 slide
Quercus rubra (northern red oak), leaves detail (3.57763)
Date: July 1977Type: Photographic image
Description:Quercus rubra (northern red oak), detail of green leaves with shallow lobes and bristle tips
Extent: 1 slide
Quercus rubra (northern red oak), tree trunk and bark (3.57797)
Date: November 1968Creator: Coulter, Ronald M.
Type: Photographic image
Description:Quercus rubra (northern red oak), partial view of lower half of tree trunk that has dark gray bark with long, broad, smooth vertical ridges; tree is situated on grassy grounds among other trees of similar size.
Extent: 1 slide
Quercus velutina (black oak), leaves detail (3.57878)
Creator: Vatter
Type: Photographic image
Description:Quercus velutina (black oak), close up view of brown leaves with moderately deep lobes and bristle tips at end of twig set against clear blue sky
Extent: 1 slide
Collecting Fagus orientalis (3.85300)
Date: September 12 2017Creator: Lobdell, Matt
Type: Photographic image
Description:Dr. Yusef and Phil Douglas collecting seeds from Fagus orientalis in Azerbaijan, Kəlbəcər-Laçın, Göygöl district, Ca. 1 air mile south of the village of Toğanali.
Quercus coccinea (scarlet oak), almost bare tall tree (3.38432)
Date: May 1977Creator: Kohout, Kitty
Type: Photographic image
Description:Quercus coccinea (scarlet oak), brown leaves scattered on lower branches of tall oval-shaped tree, amongst almost bare shrubs and trees
Extent: 1 slide
Quercus macrocarpa (bur oak), bark and bud detail (3.47309)
Date: May 1977Creator: Kohout, Kitty
Type: Photographic image
Description:Quercus macrocarpa (bur oak), closeup detail of gray bark with deep furrowed ridges; inset image shows closeup detail of the tip of a twig with small pointed buds
Extent: 1 slide
Quercus palustris (pin oak), fall leaves detail (3.47397)
Date: October 1979Type: Photographic image
Description:Quercus palustris (pin oak), detail of reddish-brown leaves with oak wilt on tree
Extent: 1 slide
Quercus coccinea (scarlet oak), bark and buds detail (3.38411)
Date: May 1977Creator: Kohout, Kitty
Type: Photographic image
Description:Quercus coccinea (scarlet oak), two images split, with top image showing detail of gray-brown bark with irregular ridges and shallow fissures, and bottom image detailing reddish-brown twig with lenticels and leaf scars and several small and short scaly, pointed buds clustered at end and one lateral near tip
Extent: 1 slide
Quercus macrocarpa (bur oak), habit, late winter (3.47267)
Date: March 1972Type: Photographic image
Description:Quercus macrocarpa (bur oak), habit, tall, round and bare tree in open field near Warrenville Road
Extent: 1 slide
Quercus macrocarpa (bur oak), acorn (3.47299)
Date: May 1966Creator: Baston, D.
Type: Photographic image
Description:Quercus macrocarpa (bur oak), brown acorn with very deep fringed cup alongside small ruler set on blue fabric background
Extent: 1 slide
Quercus bicolor (swamp white oak), bark and buds detail (3.38390)
Date: May 1972Creator: Kohout, Kitty
Type: Photographic image
Description:Quercus bicolor (swamp white oak), two images split, with top image showing detail of furrowed and blocky gray-brown mature bark and bottom image detailing several small green and brown buds with reddish-brown scales, three clustered at end and one lateral near tip of brown twig with lenticels and leaf scar
Extent: 1 slide
Quercus rubra (northern red oak), bark, twig and buds detail (3.57793)
Date: April 1978Creator: Kohout, Kitty
Type: Photographic image
Description:Quercus rubra (northern red oak), split image: on the left, detail of bark that is dark gray with long, broad, smooth ridges; on the right, detail of several reddish scaly buds near tip of reddish twig with lenticels and bud scars.
Extent: 1 slide
Quercus robur (English oak), habit, fall (3.57827)
Date: October 1963Type: Photographic image
Description:Quercus robur (English oak), Floyd Swink standing in front of mature tree covered with green leaves and near road amongst trees showing color
Extent: 1 slide
Todd Lasseigne by Quercus oglethorpensis (3.85341)
Date: October 15 2017Creator: Lobdell, Matt
Type: Photographic image
Description:Todd Lasseigne by Quercus oglethorpensis in Northern Louisiana. The tree is suffering from a canker.
Quercus imbricaria (shingle oak), habit, summer (3.47326)
Date: August 14 1973Creator: Stickney, William S.
Type: Photographic image
Description:Quercus imbricaria (shingle oak), tall tree covered with mostly green leaves in grassy field amongst collection
Extent: 1 slide
Quercus muehlenbergii (chinkapin oak), section of crown (3.47365)
Date: May 1977Creator: Kohout, Kitty
Type: Photographic image
Description:Quercus muehlenbergii (chinkapin oak), section of crown showing contorted branches covered with mostly green leaves and some yellow-brown leaves near trunk, amongst trees in background
Extent: 1 slide
Todd Lasseigne by Quercus oglethorpensis (3.85342)
Date: October 15 2017Creator: Lobdell, Matt
Type: Photographic image
Description:Todd Lasseigne by large Quercus oglethorpensis in Northern Louisiana.
Quercus agrifolia (California live oak), habit, summer (3.38316)
Date: June 1967Type: Photographic image
Description:Quercus agrifolia (California live oak), habit, silhouette of irregular dense branches, near foot path amongst trees and shrubs
Extent: 1 slide
Quercus imbricaria (shingle oak), Floyd Swink standing next to young tree (3.47333)
Date: October 1963Type: Photographic image
Description:Quercus imbricaria (shingle oak), young tree mostly covered with green leaves near road and with Floyd Swink standing alongside in grassy area amongst trees
Extent: 1 slide
Quercus (oak), section of mature trunks (3.38334)
Date: December 1972Creator: Reynolds, P. J.
Type: Photographic image
Description:Quercus (oak), close-up section of two mature trunks showing bark detail of Quercus veluntina (black oak) with deep ridges on left and Quercus alba (white oak) with pale gray peeling ridges on right amongst trees and fallen brown leaves on snow-covered ground
Extent: 1 slide
Quercus bicolor (swamp white oak), bark detail with plant label (3.38402)
Date: October 6 1974Type: Photographic image
Description:Quercus bicolor (swamp white oak), detail of brown bark with furrowed vertical ridges and plant label
Extent: 1 slide
Quercus coccinea (scarlet oak), leaves (3.38413)
Date: September 1999Type: Photographic image
Description:Quercus coccinea (scarlet oak), detail of dark green leaves with deep sinuses and bristle-tipped lobes
Extent: 1 slide
Quercus rubra (northern red oak), tree trunk and bark (3.57800)
Date: November 1968Creator: Coulter, Ronald M.
Type: Photographic image
Description:Quercus rubra (northern red oak), partial view of tree trunk splitting into three upright limbs; bark is dark gray with long, broad vertical ridges with some patchy areas of smooth and lighter gray bark. The tree is situated in a densely wooded area.
Extent: 1 slide
Quercus (oak), fall leaves (3.38300)
Type: Photographic image
Description:Quercus (oak), detail of orange-brown leaves
Extent: 1 slide
Quercus palustris (pin oak), habit, early spring (3.47406)
Date: April 12 1969Type: Photographic image
Description:Quercus palustris (pin oak), habit, relatively narrow, upright and oval showing buds and drooping lower branches in grassy area amongst shrubs and trees at United States National Arboretum in Washington D.C.
Extent: 1 slide
Quercus rubra (northern red oak), habit, spring (3.57745)
Date: April 1978Creator: Kohout, Kitty
Type: Photographic image
Description:Quercus rubra (northern red oak), round habit, almost bare branches, mature trunk near road and amongst trees
Extent: 1 slide
Quercus rubra (northern red oak), bark (3.57795)
Date: August 20 1973Creator: Stickney, William S.
Type: Photographic image
Description:Quercus rubra (northern red oak), closeup detail of dark gray bark with long, broad, smooth ridges and shallow fissures.
Extent: 1 slide
Quercus alba (white oak), fallen acorn detail (3.38329)
Date: February 1975Creator: Whitton, A.
Type: Photographic image
Description:Quercus alba (white oak), detail of single split open acorn with broken cap on ground amongst plant litter
Extent: 1 slide
Quercus liaotungensis (Liaotung oak), habit, summer (3.47347)
Date: August 1994Creator: Nachel, Jim
Type: Photographic image
Description:Quercus liaotungensis (Liaotung oak), habit, small tree with green leaves and wood chip mulch ring around base, next to short metal pole amidst trees in collection
Extent: 1 slide