Wednesday, November 30, 2022

Java Plum - Syzygium cumini

  The Java Plum -  Syzygium cumini, Is a fast growing evergreen tree that reaches heights of 30-80 feet tall depending on the location/conditions planted.  It is considered a tropical tree and is a member of the flowering plant family Myrtaceae.  It grows in an erect single trunk they could be straight or crooked in form with a rounded crown.  The tree was introduced to Florida in 1911 by the USDA, it originated from Asia, specifically India and Burma.  It has become established in Maritime hammocks, lake margins, flatwoods and rocklands throughout Central and Southern Florida.  It is similar to the Malabar Plum Syzygium jambos but can be distinguished by the different sized leaves and fruit.  It is treated by the state of Florida as an invasive species. It can be found growing from Sea Level to 6000 feet above in the tropics. It grows best in areas with very high rain or humidity levels.




Image Citation: Forest and Kim Starr, Starr Environmental, Bugwood.org

The leaves of the Java Plum are opposite, simple, thick, leathery, elliptic or oblong in shape with a rounded base and tip.  The upper surface of the leaves are lustrous and dark green in color with visible yellow lateral veins, the lower surface is a yellow-green in color and duller in sheen. Leaf blades are 7-18 cm long and 3-10 cm broad with a light yellow petiole of 5-25 mm long.  The leaves are said to smell similar to turpentine when crushed. The flowers are individually small in size only reaching 7 mm long, with 4 petals, fused in a rounded cap that opens and exposes a mass of white or pink threadlike stamens.  The flowers are produced in clusters 5-6cm long on the wood of the previous year.  Flowers on the Java Plum occur year round.  The fruit is fleshy with a single seed, it occurs as a oblong or ellipsoid berry that is 1-2.5 cm long and 2 cm in diameter.  When young the fruit is green becoming pink, red and then a purple-black.  The fruit matures year round the same as the flowers.  The pulp ranges from purple to white and is very juicy, with a sweet flavor in high quality varieties to astringent flavor in poorer varieties.



The products of the Java Plum are used for various purposes.  The fruit is used to make wine and vinegar, they are also a high source of Vitamin A and Vitamin C.  The fruit seeds are used in alternate healing processes, Unani and Chinese Medicine (digestive ailments) and Ayurveda (diabetes control).

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Thursday, November 10, 2022

"Dragon's Claw" or "Corkscrew" Willow - Salix matsudana

  The "Dragon's Claw" or "Corkscrew" Willow - Salix matsudana - is a cultivar of the Chinese (Babylon) Willow.  This cultivar grows very fast from cuttings made from the youngest (and often most curly) shoots.  It is considered medium to large in size and is a deciduous tree that grows in a primarily upright fashion. Chinese Willow's have a relatively short lifespan, estimated between 40-75 years in the wild. The Chinese Willow is a Native of Northeastern China. It has been planted heavily as an ornamental in the United States, Europe and Australia, so is seen often outisde of it's native area.  






Photo 1 & 2 Image Citations: Tom DeGomez, University of Arizona, Bugwood.org


The leaves of this variety come out early in the Spring and often hold on well into December.  Even in Winter when the tree is bare the interest of the curls and curves in the branches remain, making it a beautiful year round addition to any landscape.  The leaves are green in color and when flattened look similar to the more common types of Willow (Weeping, Babylon and Coastal).  The female and male flowers appear as Catkins and are always on different trees. The branches are often used in floral arrangements or even as bonsai because of their unique curling habits.

The Corkscrew Willow is available at most major nursery's and makes a lovely addition to any landscape.  It may also be sold as a Dragon's Claw Willow or Curly Willow.

Learn more about tree varieties www.ArundelTreeService.com or www.MeetaTree.com

Rubber Tree - Hevea brasiliensis

   The Rubber Tree - Hevea brasiliensis, is also called Sharinga Tree, Rubberwood or Para Rubber Tree.  It was only originally found growing in the Amazon Rainforest but was planted in more widespread tropical and sub-tropical areas once the demand for it's naturally produced rubber increased.  This tree is a member of the Euphorbiaceae family and has major economic value because of it's milky latex that naturally occurs within the tree.  Recorded uses of this and similar tree rubber/latex products date back to the Olmec people of Mesoamerica some 3600 years ago.  By the late 1800's rubber plantations were established in the British colonies, Java, and Malaya.  Today most rubber plantations outside of the native region occur in tropical portions of South/East Asia and West Africa. Cultivating in South America has not been satisfactory because of leaf blight this leaf blight is a major concern for plantations worldwide as it has not been cured or corrected and is thought to pose a threat to all varieties/clones growing today.


Image Citation: David Cappaert, Michigan State University, Bugwood.org

This latex that occurs in the Rubber Tree is the primary source of natural rubber, it occurs in vessels within the bark just outside of the phloem. The vessels spirals up and around the tree in a right handed helix pattern forming an angle of about 30 degrees and occurring at heights of up to 45 feet.  In the wild the tree has been found to reach heights upwards of 100 feet, but this is not very common.  Trees grow at a much slower rate once they are tapped for latex and are generally cut down after about thirty years as they usually stop producing at this point so they no longer have economical value.  When harvesting cuts are made in the vessels but only deep enough to tap into them without harming the trees growth.  In order to grow these trees require tropical or sub-tropical climates, with no chance of frost.  One simple frost event can completely wipe out a plantation and be detrimental to production as the rubber becomes brittle and breaks.  Latex production is not very reliable the amount and quality is variable from tree to tree. When a tree is tapped (the process is called rubber tapping) the latex is collected in small buckets and looks almost similar to the process used to collect syrup from Maple trees.

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Wednesday, November 9, 2022

West Indian Mahogany - Swietenia mahagoni

 The West Indian Mahogany - Swietenia mahagoni, is best recognized by the fissured brown bark, leaves with curved leaflets and large fruit capsule.  It is a evergreen or semi deciduous tree that reaches heights of 50-85 feet and grows in an erect fashion with a broad crown.  It is native to subtropical hammocks, commonly grown in private gardens, along roadsides and in highway medians in South Florida.  The Swietenia is a small genus of only 3 species distributed in tropical West Africa and tropical America.  



Image Citation:  By I, J.M.Garg, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=2602302

The bark of the West Indian Mahogany is brownish and smooth when young, becoming reddish brown and fissured at maturity.  The leaves are alternate, pinnately compound, absent of a terminal leaflet, with blades of 6-8 cms long and 4-8 leaflets (rarely as many of 20), usually recurved and asymmetric at the base.  The upper leaf surfaces are a lustrous green, while the underside is a more yellow-green or brown-green.  The flowers are uni sexual, 5-7 mm in diameter, 5 sepals, 5 petals and are orange-yellow or green-yellow in color.  Male and female flowers both appear on the the same tree, the male have long non functional pistils, the females short pistils, 10 stamens with filaments fused into a tube surrounding the pistil.  The fruit are a large egg shaped brown capsule that ranges in size from 6-13 cm long, each fruit splits into 5 parts that release numerous flat winged seeds.  Both the fruit and flowers occur/appear year round.  


Image Citation: By I, J.M.Garg, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=2602298


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Tuesday, November 8, 2022

Sour Orange - Citrus x aurantium

   The Sour Orange - Citrus x aurantium is a small evergreen shrub or small tree that reaches heights of only 10-30 feet tall. The Sour Orange has been naturalized in Florida, Georgia and Texas, but originated in southeastern Asia and South Sea Islands (Fiji, Samoa, and Guam). Sour Orange is grown in orchards settings only in the Orient/various other parts of the world where its special products are of commercial importance, including southern Europe and some offshore islands of North Africa, the Middle East, Madras, India, West Tropical Africa, Haiti, the Dominican Republic, Brazil and Paraguay.




Image Citation:  NCSC Herbarium, Citrus ID, USDA APHIS ITP, Bugwood.org

The leaves of the Sour Orange are simply shaped ovate or elliptic, lustrous and deep green in color. The flowers are small, white in color and usually have 4 or 5 petals. The fruit is orange in color, round in shape with a thick almost leathery rind. Inside of the fruit is several separate sections or cells, each having at least a single seed. The fruit is fragrant, however it is generally too sour to be eaten on it's own. The primary use of Sour Orange is for the production of marmalade. The fruits are largely exported to England and Scotland for making marmalade.



Image Citation: NCSC Herbarium, Citrus ID, USDA APHIS ITP, Bugwood.org

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Sour Orange - Citrus x aurantium

   The Sour Orange - Citrus x aurantium is a small evergreen shrub or small tree that reaches heights of only 10-30 feet tall. The Sour Orange has been naturalized in Florida, Georgia and Texas, but originated in southeastern Asia and South Sea Islands (Fiji, Samoa, and Guam). Sour Orange is grown in orchards settings only in the Orient/various other parts of the world where its special products are of commercial importance, including southern Europe and some offshore islands of North Africa, the Middle East, Madras, India, West Tropical Africa, Haiti, the Dominican Republic, Brazil and Paraguay.




Image Citation:  NCSC Herbarium, Citrus ID, USDA APHIS ITP, Bugwood.org

The leaves of the Sour Orange are simply shaped ovate or elliptic, lustrous and deep green in color. The flowers are small, white in color and usually have 4 or 5 petals. The fruit is orange in color, round in shape with a thick almost leathery rind. Inside of the fruit is several separate sections or cells, each having at least a single seed. The fruit is fragrant, however it is generally too sour to be eaten on it's own. The primary use of Sour Orange is for the production of marmalade. The fruits are largely exported to England and Scotland for making marmalade.



Image Citation: NCSC Herbarium, Citrus ID, USDA APHIS ITP, Bugwood.org

Meet more trees and shrubs on our website www.ArundelTreeService.com or follow our blog https://arundeltreeservice.meetatree.com/

Friday, November 4, 2022

Golden Dewdrops - Duranta erecta

   The Golden Dewdrops - Duranta erecta, are most easily identified by their brilliant sky blue colored flowers and bright yellow fruit.  They originated in the West Indies but have been naturalized from South Florida to East/Central Texas.  In the United States they are found primarily on disturbed sites, pine lands, and hammocks from 0-100 m.  An evergreen shrub, occasional vine or rarely a small tree they reach heights of only 20 feet.



Image Citation: Forest and Kim Starr, Starr Environmental, Bugwood.org

The unique sky blue flowers are about 1cm in diameter, with 5 petals each, borne in an elongated raceme ranging in size from 5-15 cm long.  The flowers occur year round.  The fruit is a round yellow drupe that matures year round an averages about 1.5 cm in diameter.   The leaves are opposite, simple, elliptic or egg shaped, tapered to a short point at the tip.  The bark is simple and gray when young, becoming fissured and rough with age.

The Golden Dewdrops is a member of the Vervain (Verbenaceae) family that includes roughly 35 genera and 1000 unique species found in only topical and sub tropical regions.  This family includes many colorful ornamentals and recent research shows this family is closely related to the Lamiaceae (mints & teak are in this family).

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Tuesday, November 1, 2022

Sparkleberry - Vaccinium arboreum

   The Sparkleberry - Vaccinium arboreum, is best recognized by the combination of reddish bark, bell shaped flowers and lustrous green leaves with a tiny point on the tip. It is an evergreen in most locations or late deciduous in colder climates. It grows in an upright fashion small bush or tree form. It is native to North America, dry sandy woodlands, thickets and clearings.  It is widespread on the East Coast of North America, found from Ontario in the North and Florida in the South, West through Kansas and Eastern Texas.  




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

The bark is reddish brown to molted gray in color that often peels in plates or sheets.  The leaves are alternate simply shaped and firm in texture, the upper surfaces are lustrous and dark green in color.   The flowers are white in color, usually around 4 mm long and cup shaped.  The flowers occur in the Spring Season.  The fruit is a black berry that is dry in texture and 5-9 mm in diameter occurring in late Summer to early Autumn.  


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