<i>Quercus </i>tree named ‘QNMTF2’

Abstract

A new and distinct Quercus nuttallii tree named ‘QNMTF2’ is disclosed, characterized by a unique, upright, columnal form with a dense canopy. Fall foliage is yellow, with leaves dropping cleanly in the Fall. A fast growth rate has been observed. The new variety is a Quercus tree, typically used for landscapes and gardens.

Claims

1. A new and distinct cultivar of Quercus nuttallii tree named ‘QNMTF2’ as herein illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The accompanying photograph in FIG. 1 illustrates the fastigiate growth of trees of the new variety.

(2) FIG. 2 illustrates a close-up view of the foliage during early Summer.

(3) FIG. 3 illustrates two rows of trees; the new variety is on the left, an unnamed comparator is on the right. The much more upright growth habit of ‘QNMTF2’ can be seen in the row of trees on the left of the figure. All trees illustrated are field grown in Loganville, Ga.

(4) Trees in FIGS. 1, 2 and 3 are approximately 3 to 5 years from planting into the field.

(5) The photographs were taken using conventional techniques and although colors may appear different from actual colors due to light reflectance it is as accurate as possible by conventional photographic techniques.

DETAILED BOTANICAL DESCRIPTION

(6) In the following description, color references are made to The Royal Horticultural Society Colour Chart 2007 except where general terms of ordinary dictionary significance are used. The following observations and measurements describe ‘QNMTF2’ plants grown outdoors and in a nursery in Washington, Ga. Plants are approximately 2 years old, in a 3 gallon nursery container. Temperatures ranged from 5° C. to 10° C. at night to 18° C. to 27° C. during the day. Measurements and numerical values represent averages of typical plant types. Botanical classification: Quercus nuttallii ‘QNMTF2’.

PROPAGATION

(7) Cleft grafting. Root description: Woody. Brown roots not accurately measured with an R.H.S. Colour Chart.

TREE

(8) Growth habit: Deciduous fastigiate tree. Height: Approximately 12 feet at 3 years. Spread: Approximately 5 feet at 3 years. Aspect and angle: Branches at acute angles, 45 degrees or less. Growth rate: Rapid. Trunk characteristics: Diameter.—About 2.5 inches measured at approximately 3 inches above soil level at 3 years. Color.—Near RHS Greyed-Green 198A with large blotches 197A and 197B. Surface texture.—Rippled.

FOLIAGE

(9) Leaf: Arrangement.—Alternate. Shape.—Overall ovate, deeply lobed, 7 to 9 loves. Average length.—Approximately 8 to 15 cm excluding petiole. Average width.—Approximately 5 cm. Apex.—Acute. Base.—Obtuse or asymmetrical cordate. Margin.—Deeply lobed with sharp tips at the apex of each lobe. Sinuses about 1.5 to 2.2 cm deep. Texture of top surface.—Glabrous. Texture of lower surface.—Glabrous. Color.—Young foliage: Upper side: Near RHS Yellow-Green N144B. Under side: Near RHS Yellow-Green 145A. Mature foliage: Upper side: Near RHS Green 143A. Under side: Near RHS Green 143C. Venation.—Type: Pinnate. Color: Venation color upper side: Near RHS Yellow-Green 144C. Venation color under side: Near RHS Yellow-Green N144A. Petiole.—Length: Average 1.8 mm. Diameter: Average 2 mm. Texture: Glabrous. Color: Upper side: Near RHS Yellow-Green 144A. Under side: Near RHS Yellow-Green 144C.

FLOWER

(10) Not observed.

REPRODUCTIVE ORGANS

(11) Not observed.

OTHER CHARACTERISTICS

(12) Disease/pest resistance: Neither resistance nor susceptibility to normal diseases and pests of Quercus has been observed. Drought tolerance: No tolerance for drought observed. Quercus nuttallii can be moderately drought tolerance once established. Temperature tolerance: USDA Zones 6 through 9. Fruits/nuts: Not observed.