USPP2662P - Pin oak - Google Patents
Pin oak Download PDFInfo
- Publication number
- USPP2662P USPP2662P US PP2662 P USPP2662 P US PP2662P
- Authority
- US
- United States
- Prior art keywords
- tree
- pin oak
- pin
- branches
- oak
- Prior art date
Links
- 240000000660 Quercus palustris Species 0.000 title description 28
- 235000017902 Quercus palustris Nutrition 0.000 title description 28
- 101700073338 COLE Proteins 0.000 description 6
- 230000034303 cell budding Effects 0.000 description 4
- 230000000644 propagated Effects 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 2
- 210000003462 Veins Anatomy 0.000 description 2
- JNIGYQOBELCEIZ-MAKDUZDQSA-L barium(2+);5-chloro-4-methyl-2-[(2Z)-2-(2-oxonaphthalen-1-ylidene)hydrazinyl]benzenesulfonate Chemical compound [Ba+2].C1=C(Cl)C(C)=CC(N\N=C/2C3=CC=CC=C3C=CC\2=O)=C1S([O-])(=O)=O.C1=C(Cl)C(C)=CC(N\N=C/2C3=CC=CC=C3C=CC\2=O)=C1S([O-])(=O)=O JNIGYQOBELCEIZ-MAKDUZDQSA-L 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
Images
Definitions
- This invention relates to a new and distinct variety of Quercus palustris (commonly known as pin oak) which originated as a seedling selected from a large planting of pin oak seedlings made by me.
- This new variety of pin oak tree is distinguished from other pin oak trees in that the lower branches diverge from the main trunk at angles of generally from about 90 to about 45 upwardly, in contrast to the downwardly inclined or drooping condition normally observed.
- the tree is very resistant to damage resulting from the Weight of snow or ice thereon and is of vigorous uniform growth habit with exceptionally well-spaced branches.
- Pin oak trees have long been utilized in tOWns and cities as street trees because of their desirable characteristics, but it is recognized that the tendency of the lower branches to droop or diverge downwardly constitutes a most undesirable characteristic, requiring early and repeated pruning to maintain essential head room, both for pedestrians on sidewalks and vehicles near the curb. Such additional maintenance expense has caused this otherwise very desirable tree to be avoided in many instances when selections for street tree plantings have been made.
- FIG. 1 shows the pin oak tree of this invention in winter after dropping of the foliage
- FIG. 2 shows such tree in leaf
- FIG. 3 shows typical leaves from such new tree.
- the trunk diameter (DBH) was approxi mately 4 inches with a straight excurrent trunk and short, horizontal or up-sweep branches diverging at angles of to from the trunk, and forming a narrow oval or pyramidal head. Height of the tree was approximately 16 feet.
- the branches are Well distributed.
- the slender branchlets are soon glabrous, greenish or reddish brown.
- the buds are small, glabrate and reddish brown.
- the leaves are alternately arranged with lobed margins, 10-15 cm. long and 8-12 cm.
- the petiole is slender, 2.5 cm. long, bright glossy green above, lighter green beneath; taking on a brilliant red color in the autumn.
- a new and distinct variety of pin oak tree substantially as herein shown and described, characterized particularly as to novelty by its well-spaced lower branches which diverge from the main trunk at angles of generally from 90 to about 45 upwardly, substantially all of the other branches also diverging from the main trunk at upward angles, by the exceptionally vigorous uniform growth habit of the tree, and by resistance to snow and ice damage.
Family
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