They have visible veins that curve parallel to the margins. Flowering dogwood (Cornus florida) tree and flowers. Dogwoods are elegant, beautiful ornamental trees with several seasonal displays. Dogwood bark: Kousa dogwood tree bark is thin and smooth that peels to give the bark a distinctive mottled appearance. Dogwood leaves turn beautiful reddish color in autumn. The Mountain dogwood is a medium-sized flowering tree that produces large star-shaped flowers and has broad oval leaves. Fragrant creamy-white flowers bloom in spring and summer. The leaves grow opposite each other on the twigs on these types of dogwoods. Their oval to heart-shaped leaves deepen to crimson and orange in fall. 'Elegantissima' red twig dogwood. ovate to lanceolate, 3 – 4.7″ (8 – 12 cm) long, and arranged in opposite pairs. The simple shrub leaves grow in an opposite arrangement on twigs. Most dogwood species have a rounded to flat crown that requires little—if any—pruning. Red osier dogwood requires well-draining, rich moist soil, and grows well in full sun or partly shaded areas. One of the most common species, and the one about which you’ve most likely heard, is the Flowering Dogwood. The pagoda dogwood grows between 15 and 25 ft. (4.5 – 7.6 m) tall. Missouri’s official state tree, it presents lovely boughs of white inflorescences in springtime forests. The masses of white flowers contrast with light green foliage to create a magnificent shade tree. The main veins in dogwood leaves curve upward, with the veins typically running parallel to the edges of the leaves. Dogwood leaves: Mountain dogwood tree leaves are large elongated oval, glossy green leaves with pronounced veins. After flowering, red inedible fruits appear. Dogwoods have simple, untoothed leaves with the veins curving distinctively as they approach the leaf margins. Mountain dogwood trees are native to the Western United States and related to the Cornus florida tree. Opposite leaves (whether simple or compound) are located directly across from one another on the same stem. The green leaves add charm and movement during the growing season and set a perfect backdrop for the bright flowerlike bracts. The fall leaf color is also strikingly beautiful. The flowering dogwood tree is a small- to medium-sized deciduous tree growing between 10 and 30 ft. (5 – 10 m). Identification & Lifecycle. The “berries” on dogwood trees attract birds and small mammals. As the eggs hatch, the larvae feed on foliage between July and September. Dogwood leaves: Gray dogwood has green leaves that are lance-shaped and have fewer veins than other dogwood species. Dogwood leaves: Cornelian cherry dogwood leaves grow up to 5” (12 cm) long in an oblong shape. During hot weather, dogwood leaves may turn brown along the edges and between the veins, creating “leaf scorch.” Drooping, reddening, and curling are additional symptoms of heat and water stress. Dogwood leaves: Kousa dogwood tree leaves are dark green and elliptic-ovate-shaped, growing up to 4” (10 cm) long and wide. The petals can be more narrow than the one pictured, but would hardly be described as skinny. This makes small dogwood trees or shrubs suitable for compact gardens or for growing as a lawn plant. However, some species of dogwood have leaves that grow alternately. A characteristic feature of this dogwood species is its flat, slightly rounded crown. The long, lanceolate leaves turn a deep red or purple color in the fall. Dogwood Identification. In the fall, dogwood leaves add to the charm of the tree by changing to bright colors. The single-stemmed tree has a slender trunk with a spreading rounded canopy of layered branches. Powdery mildew is a disease which is common on many ornamental trees and shrubs, including dogwoods. Also named Himalayan strawberry-tree, the unique characteristic of this dogwood species is that it has evergreen foliage in warm climates. However, some varieties of dogwood have a relatively short or dwarf growing size, and some of them have shrubby growth habit. Powdery Mildew: Erysiphe pulchra (formerly Microsphaera pulchra) is the fungus that attacks leaf surfaces and tender shoots and causes powdery mildew. A: We have had several samples and questions come into the office over the past couple of weeks dealing with white powdery growth on dogwood leaves. Most dogwood species have opposite leaves, while a few, such as Cornus alternifolia and C. controversa, have their leaves alternate. Dogwood bark: ‘Wolf Eyes’ Japanese dogwood bark is scaly and exfoliating. The first sign of infection can often be seen on the leaves, where you might see tan spots that develop purple rims. To identify dogwood trees, look for their hard, grayish bark that looks like alligator skin. Flowering dogwood trees have a fast growth rate. The horizontal branching creates an attractive rounded crown of oval, pointed leaves. Dogwood bark: Bloodtwig dogwoods are multi-stemmed shrubs with stiff branches covered with red-colored bark. Growing as a large shrub, Cornelian cherry dogwoods are ideal if you want to plant them as a flowering hedge plant or screen. Dogwood leaves: Evergreen dogwood leaves are dull green and may turn reddish in autumn. Dogwood bark: Mountain dogwood tree bark is smooth and gray with patches of white. Dogwood sawflies go through several stages of development, or instars, before they molt into adults. As with all species of dogwood, the leaves have smooth margins and a pointed tip. Then, see if the leaves are elongated oval shapes with smooth edges and a pointed tip. Left to right: Fruits of Cornus mas, C. alba ‘Sibirica’, C. kousa, and C. sanguinea). All Viburnum species have opposite leaves A phraseopposite leaves. Click on leaf images to enlarge. Examples: Ash, Maple, and Olive. Some leaves could develop necrosis with a weathered look to the outer edges. At the same time as the fruits (drupes) develop during the summer months, Flowering dogwood grows new flower buds for next spring. Flowering multi-stemmed pagoda dogwood shrub or small tree, grows best in partial shade to full sun as long as the ground drains well and is kept moist. The leaves of dogwoods possess a green upper surface, with the underneath surface of the leaves having a much paler appearance. Bloodtwig dogwood grows in warm sunny locations and is native to Europe. The flowers of red osier dogwood are small and white and grow in clusters. This kind has stiff hairs present on the upper part of the leaf and softer ones beneath that give the underside a woolly texture. The bark is grey and smooth with shallow ridges which develop with age, and its twigs are smooth, straight and slim. The Kousa dogwood tree is a small to medium flowering shade tree that produces multitudes of large white star-shaped flowers in spring. Flowering dogwoods thrive in USDA zones 5 through 9. Additional Resources. Initial indications include tan spotting along the upper portion of the leaves. This shrubby plant has clusters of small white flowers, oval-pointed leaves, and distinctive red bark. Flowering dogwoods, Pacific dogwoods, red-osier dogwoods and rough-leaf dogwoods turn red. Although the small decorative trees thrive in partial shade, they will grow well in full sun if you water them regularly. Flowering dogwood trees are small to medium size trees. Leaf scorch is a common problem in dogwood tress, and a sign that your tree is under water stress. New growth is covered with a fine, white, powdery coating, typically on the upper surfaces of the leaves. The dogwood leaves are ovate to oblong shape and grow opposite. Red twig dogwood is a small flowering tree or large shrub. Stiff dogwood is a small flowering tree or large shrub with multiple trunks. Let’s look in more detail at some of the best dogwood trees for growing in front or backyards. Dogwood leaves: Roughleaf dogwood tree leaves have an oval shape with a rounded base and pointed tip. Anthracnose Identification . Copyright Leaf Group Ltd. // Leaf Group Lifestyle. The exfoliating bark peels in places. Sometimes recent tree trimming work can make it more difficult to use other identifiers, which further underscores the usefulness of the leaf. The “National Audubon Society Field Guide to Trees” says that dogwood leaves have no apparent teeth along their edges, but when you take a magnifying lens and make a much closer inspection, you will discover tiny serrations. Diagnosing Problems of Flowering Dogwood; Flowering Dogwood Trees: Selection, Care, and Management of Disease Problems; Dogwood … ‘Wolf Eyes’ dogwood is a small tree or multi stemmed shrub which is a smaller cultivar of the popular Cornus kousa tree. Dogwood trees burst into life when they bloom in spring with clusters of flowers. Pacific dogwood has the widest leaves of the American dogwoods, with the typical leaf in the 1.5- to 3-inch wide range, according to “Trees of North America.” Rough-leaf, alternate-leaf and red-osier dogwood leaves seldom exceed 2 inches in width; red-osier dogwood leaves can be as narrow as just 5/8ths of an inch. Leaves on giant dogwood stems grow in an alternate arrangement. Some species of tree produce pinkish or red petals, making the flowering tree even more attractive. The fruit is a round attractive white berry, 0.2 – 0.35″ (5–9 mm) in size. Of the five types of trees from the dogwood family (Cornaceae) that have large distributions through portions of the United States, the red-osier dogwood has the largest range. The dogwood bark has a distinct scaly appearance. There are over 50 species within the Cornus, or Dogwood, genus. It spreads quickly by underground runners, so make sure to remove them to control spread. The pagoda dogwood is a large flowering multi-stemmed shrub or small tree. Flowering dogwood trees bloom from mid-March through May. In the fall, the attractive large leaves turn a golden yellow color. Bloodtwig dogwood (Cornus sanguinea ‘Midwinter Fire’). However, for now, let’s start building your identification muscles by looking at the easiest way to identify a particular broadleaf tree: by its leaves. Flowering dogwood trees thrive in full sun and provide year-long interest in residential gardens. In spring, the Mountain dogwood is covered in white flowers, then in summer, dark green foliage, before turning spectacular orange and red color in the fall. leaf scorch of dogwood. Dogwood bark: Flowering dogwood tree bark is dark brown or gray, growing in square patterns surrounded by deep ridges. The Cornelian cherry dogwood species is a small flowering tree or medium to large deciduous shrub with tiny flowers, green oblong leaves, and red berries. From there they spread to the leaves, young shoots and then the fruits. Leaves grow in an opposite arrangement on branches. The dark-green leaves turn a dark purple color in the fall. Flowering dogwood trees are perennial species of woody plants belonging to the genus Cornus. It is a plant native to East Asia including Korea, China and Japan. The evergreen dogwood tree is an ornamental tree that grows up to 40 ft. (12 m) tall. The flowers on roughleaf dogwoods don’t have the showy white bracts of some popular garden dogwoods. They also tend to grow in pairs on the stem. The ovate leaves are light green with creamy-white edges. The small- to medium-sized dogwood tree has a rounded crown that is attractive in all seasons. To prevent a borer attack, plant your dogwood in shade, not direct sun, and provide adequate irrigation to avoid water stress. The variegated giant dogwood tree is one of the most stunning dogwood trees for gardens. The spread of the crown is usually more expansive than the tree is tall. The one notable exception is the alternate-leaf dogwood tree. Infected leaves exhibit marginal leaf scorch, dead patches, reddish discoloration, yellowing and premature defoliation. Your email address will not be published. Dogwood bark: Evergreen dogwood tree has brown-gray bark with shallow scales. They add decorative touch to any garden. Mature pagoda dogwoods have a flat-topped crown. During autumn the leaves turn red-purple in color. The red-osier dogwood and rough-leaf dogwood leaves fall between 1.5 and 3.5 inches long, with alternate-leaf dogwood slightly larger, some making it to lengths of 4.5 inches. The identification of the leaves of dogwood trees hinges on recognizing subtle differences in their features. The dogwood plant has dark glossy green foliage made up of pointed oval leaves. Flowering dogwood tree has clusters of greenish-yellow flowers surrounded by large, broad, rounded white petals which are actually bracts (modifies leaves). They are ovate to lanceolate, 3 – 4.7″ (8 – 12 cm) long, and arranged in opposite pairs. Roughleaf dogwood (Cornus drummondii) young tree (left), leaves and flowers (right). Some spots may have a purple-colored rim to them. Dogwood flowers are typically white, but some species produce yellow, pale red or pink blossoms. On these, the leaves grow in an alternate manner on the twigs. Mountain dogwood trees grow between 15 and 40 ft. (4.5 – 12 m) tall. Fall leaf color on most sun grown plants will be red to maroon. The small white flowers are grown in rounded clusters, and they give way to immature green fruits that turn white when ripened. Kousa dogwood (C. kousa) and hybrids of kousa and native dogwood (C. florida) are resistant to anthracnose and decline and should be used to replace dying trees. This dogwood shrub has dark green leaves that turn reddish-purple in autumn. The Kousa dogwood is a handsome, small- to medium-sized tree reaching a mature height of 30 feet. Dogwood bark: Red osier dogwood twigs have bark with beautiful reddish color which adds a focal point during winter time. After pollination, they produce a type of fruit known as a drupe. Some species of dogwood trees have poisonous berry-like drupe, and some are edible. Spores are spread by wind to surrounding dogwoo… Dogwood bark: Stiff dogwood tree bark is brown to gray that exfoliates to reveal interesting patterns on the straight, slender trunks. Dogwood is a small broadleaf shrub, typically found growing along woodland edges and in hedgerows of southern England. Depending on the age of the Kousa dogwood, the trees take on a different appearance. Dogwood leaves: Red twig dogwood plant leaves are ovate to lanceolate with a rounded base and smooth margins. Some dogwood varieties have tiny yellowish-green inconspicuous flowers surrounded by large white petal-like bracts. Dogwood leaves are smooth above and below, except for the aptly named rough leaf-dogwood. The small-medium tree grows between 15 and 30 ft. (4.5 – 10 m) tall. Scaly bark of flowering dogwood (Cornus florida). Dogwood trees are easy to recognize due to their characteristic bark, smooth oval leaves, and white flower clusters. Dogwood leaves: Flowering dogwood tree leaves are oval-shaped with delicate noticeable veins. Bark is dark gray to brown with thin, squarish plates. Dogwood bark: New bark of gray dogwood is tan-brown that turns to gray as the twigs mature. Flowering dogwood is the common name for the species Cornus florida. Some dogwood species are particularly easy to identify during the spring, while their flowers are in bloom. One of the outstanding features of Cornus alba is its spectacular red winter bark. Dogwood leaves: Giant dogwood tree leaves are broad oval leaves up to 6” (15 cm) long. Dogwood trees are small to medium-sized trees, growing between 10 and 25 ft. (3 – 7.6 m) tall. The roughleaf dogwood tree is a small flowering tree with dark green oblong, pointed leaves and white summer flower clusters. To grow dogwood trees, plant them in partial shade or full sun. This can The bracts may be pink or red depending on cultivar but the species color is white. A distinctive feature of the pagoda dogwood species is the layered horizontal branches with upturned tips. The first parts of the tree to be affected are the flower bracts (petals). Pagoda dogwoods have clusters of small creamy-white-colored flowers growing in a flowerhead. Take a look, and enrich your knowledge. Adult dogwood sawflies emerge from late May through July and lay eggs on dogwood leaves. The Pacific dogwood has the longest leaves, with the average leaf in the 4- to 6-inch-long range. Many people rate flowering dogwoods as the most appealing of all the native North American flowering trees. Fall leaf color of Dogwood is more vivid in USDA hardiness zones: 5 through 8A. One leaf occurs at each node on the limb, rather than two emerging across from one another as in the other dogwood species. Although the fruits look like large berries, they are drupes similar to cherries. Plan the perfect garden with our interactive tool →, backlit dogwood leaves image by Jorge Moro from, Ohio Department of Natural Resources: Flowering Dogwood. The major veins extend all the way to the leaf margin. Compared to other species of dogwood, the Cornelian cherry doesn’t have showy spring flowers. When masses of flowers bloom during April and May, the dogwood is a stunning tree in backyards. Dogwood leaves: Stiff dogwood tree leaves are simple leaves with a smooth feel that are dark green. On many varieties of dogwoods, the gray-brown bark has an unusual pattern resembling alligator skin. 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