Friday, September 24, 2021

Mockernut Hickory - Carya tomentosa

  Mockernut Hickory - Carya tomentosa is also called the Bullnut, Hognut, Mockernut, White Hickory or Whiteheart Hickory (Depending on the region it is located in).  The Mockernut Hickory is a large deciduous tree that can reach heights of up to 100 feet in ideal conditions.  It is native to the United States and can be found growing from Massachusetts and New York in the North, west to southern Michigan and Northern Illinois, south to eastern Texas and east to northern Florida.  Mockernut Hickory is considered to be a tough tree and can take abuse, it's timber is used for tool handles.  



Image Citation: John Ruter, University of Georgia, Bugwood.org

The main trunk of the Mockernut Hickory is free of branches before spreading into a thick oblong shaped crown.  Tha bark is a mousy gray in color with very tight interlocking flat or slightly rounded ridges that appear to be almost laced together over the crevices.  The bark pattern gives the trunk the illusion of being wrapped in tight netting.  The leaves are alternate, compound and 8-12 inches long with 5-9 leaflets each that are a deep green in color.  In the fall the leaves change to a bright yellow, yellow-brown and finally brown before falling to make room for next seasons new growth.  The leaflet bottoms and leaf stalks are covered with fuzzy hairs and the edges are finely - coarsely toothed.  When crushed the leaflets release a strong odor.  The nuts have very small fruit cavities and are clothed in thick round or pear shaped husks with indented seams.  The nuts are a favorite meal for squirrels. 



Image Citation: Chris Evans, University of Illinois, Bugwood.org


Image Citation: John Ruter, University of Georgia, Bugwood.org



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Wednesday, September 22, 2021

Inkwood - Exothea paniculata

  The Inkwood - Exothea paniculata also called Butterbough is an evergreen shrub or small tree that reaches heights of up to 50 feet in height. It is most easily identified by its compound leaves with 4 leaflets. It grows in an erect, upright form with a single trunk and narrowly rounded crown.



(Photo By: Michelle M. Smith, 2018 - In habitat, Ned Glenn Nature Preserve, Florida)

When young the bark is bright, reddish-brown becoming dark gray and fissured with age. The leaves are alternate, pinnately compound with an even number of leaflets, 2-6 in number but usually 4. Each leaflet is elliptic or oblong in shape with a rounded tip and slight notching. The upper surface of the leaves are lustrous and dark green in color, while the lower is a paler green. The flowers are unisex and white with the male and female occurring on separate plants. The flowers contain 5 petals, 5 sepals and generally 8 stamen and occur from late winter to early spring. The fruit is a fleshy berry that is red when young becoming purple or almost black when mature. Fruit reaches maturity annually in Summer.

The Inkwood is native to only the the very southernmost portion of Florida and the Florida Keys. It prefers hammocks and shell mounds. It is a member of the Exothea genus which contains only 3 species all but 1 are native to the Caribbean, the Inkwood is the only member native to the United States.

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Tuesday, September 21, 2021

Alder - Alnus

  Alder trees -Alnus  are a very small group of trees and shrub, made up of only 30 varieties most of which are native to the Northern temperate areas. Ten of which are native specifically to North America half of these can be grown as either shrubs or trees. As a whole, Alders rarely grown to over 70 feet tall. They are relatively fast growers and are short lived not recorded to live very often beyond 100 years.




Image Citation (Green Alder): Steven Katovich, Bugwood.org

Alders are considered part of the larger Birch family since they are very similar in habit and appearance, however there are two things that set them apart from Birch trees. The first is the fruit of the Alder not only resembles a small cone, but when ripe it becomes hard and woody very much like a cone. The second is that the roots of the Alder grow nodules that house nitrifying bacteria which enables these trees to grow well in bare or poor soils that lack the nitrates the plants need to survive. When the leaves of the trees fall each year and decay they enrich the soil, this enables other tree species to eventually grow in these once uninhabitable areas as well.. Red and Gray Alders are commonly planted along the edges of newly constructed roads and in quarry spoils for this very reason. In its native growth range, the Alder is commonly seen as one of the first signs of new growth in previously burned or logged forests. They are also usefully grown along the banks of rivers and ponds as their root systems will extend down into the water creating a stronger bank and helping with erosion control.



Image Citation (Nepal Alder): John Ruter, Bugwood.org

The Alders wood is durable in water, it is hard and dense in quality. The wood is also used to make charcoal for gunpowder. It has been used for both bank and canal construction.



Image Citation (Hazel Alder): Chris Evans, University of Illinois, Bugwood.org

It is recorded in Welsch Mythology that the Alder fought in the great "Battle of Trees" against the dark spirits of the underworld. When cut the wood of the Alder turns from white to red which is said to signify the tree is bleeding.
Native Americans not only made tools and utensils from the Alders wood but they also extracted and used the red dye from it's wood as well. Twigs, leaf buds, leaves and catkins (both male and female) all have medicinal purposes.

Monday, September 13, 2021

Sugar Maple - acer saccharum

  The Sugar Maple - Acer saccharum (also called Hard Maple, or Rock Maple in certain regions) is a deciduous tree that is well known for it's lovely vibrant fall coloring, large size, larger leaves and winged fruit. Growing in an upright erect form, generally with one single trunk, the Sugar Maple makes for a lovely focal point in any setting. It is Native to much of the Eastern portion of North America from Nova Scotia, Ontario and North Dakota, South from Georgia, Northern Alabama, Northern Louisiana, and Eastern Oklahoma. It slightly overlaps the Southern Sugar Maple in range in the Southern most growth areas only (LA, GA, & AL). The Sugar Maple is a slow growing, long lived tree with specimens recorded as old as 400 years. Commonly found as a tree of importance in various Eastern Forest types including, Hemlock/Northern hardwoods, Beech/Sugar Maple, Sugar Maple/Basswood, Cherry/Maple, and Red Spruce/Sugar Maple.



Image Citation (Fall Coloring) John Ruter, University of Georgia, Bugwood.org


Image Citation: Jason Sharman, Vitalitree, Bugwood.org

The bark of the Sugar Maple is smooth and Gray when young, becoming irregularly furrowed, scaled and darker with maturity. The leaves are opposite, simple, thin, firm and broader then they are long. Upper leaf surfaces are a dark yellow/green in color, palmately veined with a paler yellow/green or whitened underside. Leaf blades range in size from 7-20 cm long and broad. In the fall the leaves turn a brilliant Red, Yellow or Orange in color.  The flowers of the Sugar Maple are tiny they contain 5 sepals that are green/yellow in color, occurring in clusters near the leaf axil in Mid-Late Spring on thin/long drooping stems. The fruit occurs in early Fall in the form of paired samaras that are 2-3 cm long, the pair of samaras almost always forms a U shape where connected.

The Sugar Maple is a very popular tree and can be found at almost any nursery in hardiness zones 3-8. It can be grown as both a shade tree and an ornamental, be careful when planting this tree as although it is a slow grower it will get very large with age 65-75 feet tall and 40-50 feet broad (canopy). The Sugar Maple prefers partial shade or full sun and deep, well-drained, acidic to slightly alkaline soil. Sugar Maple also has a moderate drought tolerance. Sugar Maples are commonly browsed upon by Whitetail Deer, Squirrels, Moose and Snowshoe Hares. Sugar Maple is the Official State tree of New York, West Virginia, Wisconsin and Vermont (more states than any other tree).


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Wednesday, September 8, 2021

Black Oak - Quercus velutina

  The Black Oak - Quercus velutina - is also known as the Eastern Black Oak. It was sometime/ formerly called the Yellow Oak, because of the yellow pigment in it's inner bark. It is native to the Eastern and Central United States and is found in every East Coast state from Southern Maine to the Northern panhandle of Florida. It is found as far inland as Ontario, Minnesota, Nebraska, Oklahoma and even Eastern Texas. It is similar in appearance and often confused with the Northern Red Oak, Scarlet Oak and Southern Red Oak. Black Oak is known to hybridize with other members of the Red Oak group, and is a known parent in at least a dozen different named hybrids found today.



The leaves are simple, alternate, ovate and 4-10 inches long with 5-7 bristle tipped lobes on each one. They are a shiny green in color on the top during the growing season which shifts to a Yellow-Copper color in the Fall.
The Black Oak is monecious, the male flowers are borne on slender yellow to green catkins, while the females are reddish green and borne on short spikes in leaf axils that appear in spring with the leaves.



Image Citation: Rob Routledge, Sault College, Bugwood.org

The fruit, in the form of acorns that are 1/2 to 3/4 inch long, 1/3 to 1/2 of the Acorn is enclosed in a bowl-shaped cap. The cap scales on each Acorn are light brown and fuzzy. The Acorns mature every two years and appear in late summer into early fall. These Acorns are eaten by Wild Turkey, Whitetail Deer, Grouse and other small woodland mammals.
The bark is gray and smooth when young, becoming thick, very rough, almost black in sections and deeply furrowed. The inner bark is yellow-orange and very bitter tasting.


The Black Oak is not very common in the nursery trade because it can be difficult to transplant. When full grown the Black Oak can reach heights of 135 feet in ideal locations, however the average height is only 60-80 feet tall in most areas. The current Co-National Champion trees are found in Michigan (131 feet) and Connecticut (84 feet). Black Oaks have very prominent tap roots that ensures this species' survival under even poor growth conditions. It is recommended for hardiness zones 6-9. The Black Oak can be harmed by quite a few outside agents including Gypsy Moths, Oak Leaf Caterpillar, Oak Wilt, and Shoestring Root Rot to name a few.

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Monday, September 6, 2021

Zelkova / Zelcova

  The Zelkova -  is a deciduous tree in the Elm family that is native to Europe and Southeast Asia.  It is susceptible to Dutch Elm disease but most often survives it, this is one of the main reason why it is considered to be a replacement for the Elm tree.   With a vase shape and the ability to grow 90-100 feet tall with a 60-80 foot spread.  It has a moderate growth rate and thrives best in full sun locations.  





The leaves are 1 1/2 to 4 inches long, green when young and turning a brilliant orange to burnt umber in the fall.  This varities crown grows naturally in a vase shape very similar to that of the Elm.   The leaves are a simple shape with serrated edges.  There are not obvious flowers on this tree they are very small and inconspicuous.




The Zelkova grows in a variety of soils but prefers moist deep loams.  Established specimens are highly drought resistance.  This tree makes for an ideal street tree as they thrive even in pits that were they soil is restricted.  It also has a high disease and salt resistance.  



Image Citations (1-3): Richard Webb, Self-employed horticulturist, Bugwood.org


This tree thrives in zones 5-8 and is readily available from most local nurseries.  It will make for a sturdy addition to any landscape.

Thursday, September 2, 2021

Apricot - Prunus armeniaca

  Apricot - Prunus armeniaca is most easily recognized by the combination of broadly ovate to almost perfectly round leaves, pink flower buds and hairy fruit with stone inside. It is a small deciduous tree that reaches heights ranging from 16-30 feet on average. Originally introduced from China it is now found on roadsides and disturbed sites from 20-1600 m in the East from Pennsylvania in the North, West to Illinois and Missouri and South to Kansas. The Apricot grows in an upright erect fashion with a single trunk and rounded crown.


Image Citation: Eugene E. Nelson, Bugwood.org

The bark of the Apricot is deeply furrowed and Gray. The leaves are Alternate, simply shaped, broadly ovate to almost circular. The upper leaf surface is hairy along the veins, and the blades are 3-9 cm long. The flowers are 1.5-2.5 cm in diameter, 5 petals, pink when inside the bud, opening to a crisp white in Mid-Spring. The fruit is hairy, rounded or ellipsoid drupe, yellow to orange in color.

Image Citation (Leaves/Fruit): Howard F. Schwartz, Colorado State University, Bugwood.org

The Apricot fruit matures in Summer and is sold commercially. Turkey is the number one country for Apricot production, followed by Iran, Uzbekistan, Algeria and Italy to round out the top five. The United States is not a major producer of Apricots and is not even in the top ten based on production numbers. Apricots are produced commercially by most countries with the climate to support their growth this includes The United Kingdom, Australia and The United States (mainly California, Washington and Utah) to name a few.


Image Citation (Fruit): Rory Register, Rory's Photography, Bugwood.org

Apricot trees can be found at most larger scale nurseries and can be grown in hardiness zones 5-8 (9). Apricot trees need well-drained soil in order to survive and produce well. Young Apricot trees can be susceptible to bacterial canker, powdery mildew and a variety of root fungus problems. Aphids, mites and peach twig borers are pests that you may encounter when growing Apricot trees.

Link to USDA Database entry for Apricot nutritional value:

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