Cestrum Aurantiacum Descriptive Essay

Descriptive Essays

Summary:

The Modes of Discourse—Exposition, Description, Narration, Argumentation (EDNA)—are common paper assignments you may encounter in your writing classes. Although these genres have been criticized by some composition scholars, the Purdue OWL recognizes the wide spread use of these approaches and students’ need to understand and produce them.

Contributors: Jack Baker, Allen Brizee, Elizabeth Angeli
Last Edited: 2013-03-10 01:34:44

What is a descriptive essay?

The descriptive essay is a genre of essay that asks the student to describe something—object, person, place, experience, emotion, situation, etc. This genre encourages the student’s ability to create a written account of a particular experience. What is more, this genre allows for a great deal of artistic freedom (the goal of which is to paint an image that is vivid and moving in the mind of the reader).

One might benefit from keeping in mind this simple maxim: If the reader is unable to clearly form an impression of the thing that you are describing, try, try again!

Here are some guidelines for writing a descriptive essay.

If your instructor asks you to describe your favorite food, make sure that you jot down some ideas before you begin describing it. For instance, if you choose pizza, you might start by writing down a few words: sauce, cheese, crust, pepperoni, sausage, spices, hot, melted, etc. Once you have written down some words, you can begin by compiling descriptive lists for each one.

  • Use clear and concise language.

This means that words are chosen carefully, particularly for their relevancy in relation to that which you are intending to describe.

Why use horse when you can choose stallion? Why not use tempestuous instead of violent? Or why not miserly in place of cheap? Such choices form a firmer image in the mind of the reader and often times offer nuanced meanings that serve better one’s purpose.

Remember, if you are describing something, you need to be appealing to the senses of the reader. Explain how the thing smelled, felt, sounded, tasted, or looked. Embellish the moment with senses.

If you can describe emotions or feelings related to your topic, you will connect with the reader on a deeper level. Many have felt crushing loss in their lives, or ecstatic joy, or mild complacency. Tap into this emotional reservoir in order to achieve your full descriptive potential.

  • Leave the reader with a clear impression.

One of your goals is to evoke a strong sense of familiarity and appreciation in the reader. If your reader can walk away from the essay craving the very pizza you just described, you are on your way to writing effective descriptive essays.

It is easy to fall into an incoherent rambling of emotions and senses when writing a descriptive essay. However, you must strive to present an organized and logical description if the reader is to come away from the essay with a cogent sense of what it is you are attempting to describe.

Cestrum nocturnum (common names include night-blooming jasmine, night-blooming cestrum, and raatrani), is a species of Cestrum in the plant family Solanaceae (the potato family). It is native to the West Indies, but naturalized in South Asia .[1]

Description[edit]

C. nocturnum is an evergreen woody shrub growing to 4 m (13 ft) tall. The leaves are simple, narrow lanceolate, 6–20 cm (2.4–7.9 in) long and 2–4.5 cm (0.79–1.77 in) broad, smooth and glossy, with an entire margin. The flowers are greenish-white, with a slender tubular corolla 2–2.5 cm (0.79–0.98 in) long with five acute lobes, 10–13 mm (0.39–0.51 in) diameter when open at night, and are produced in cymoseinflorescences. A powerful, sweet perfume is released at night. The fruit is a berry 10 millimetres (0.39 in) long by 5 mm (0.20 in) diameter, either marfil white or the color of an aubergine. There is also a variety with yellowish flowers. There are mixed reports regarding the toxicity of foliage and fruit.[2][3]

Chemistry[edit]

Flowers distilled oil contains phenylethyl alcohol (27%), benzyl alcohol (12%), eicosane (5.6%), eugenol (5.6%), n-tetracosane (4.4%), caryophyllene oxide (3.1%), 1-hexadecanol (2.7%), methoxyeugenol (2.45%), benzaldehyde (2.32%).[4] Flowers alcohol extract contains cytotoxic steroids.[5]

Cultivation[edit]

Cestrum nocturnum is grown in subtropical regions as an ornamental plant for its flowers that are heavily perfumed at night. It grows best in average to moist soil that is light and sandy, with a neutral pH of 6.6 to 7.5, and is hardy to hardiness zone 8. C. nocturnum can be fertilized biweekly with a weak dilution of seaweed and fish emulsion fertilizer.

Pharmacology[edit]

Toxicity[edit]

Ingestion of C. nocturnum has not been well documented, but there is some reason to believe that caution is in order. All members of the Solanaceae family contain an alkaloid toxin called solanine,[6] though some members of the family are routinely eaten without ill-effect. The most commonly reported problems associated with C. nocturnum are respiratory problems from the scent, and feverish symptoms following ingestion.[medical citation needed]

Some people, especially those with respiratory sensitivities or asthma, have reported difficulty breathing, irritation of the nose and throat, headache, nausea, or other symptoms when exposed to the blossom's powerful scent.[medical citation needed] Some Cestrum species contain chlorogenic acid, and the presence of this potent sensitizer may be responsible for this effect in C. nocturnum.

Some plant guides describe C. nocturnum as "toxic" and warn that ingesting plant parts, especially fruit, may result in elevated temperature, rapid pulse, excess salivation and gastritis.[medical citation needed]

Spoerke et al.[full citation needed] describe the following toxic effects reported from ingesting C. nocturnum: Ingesting 15 lb of plant material caused a cow to salivate, clamp its jaws, collapse, and eventually die. A postmortem showed gastroenteritis and congestion of liver, kidneys, brain, and spinal cord. Although the berries and the sap are suspected of being toxic, several cases of ingestion of the berries have not shown them to be a problem, with one exception. Morton cites a case where children ate significant quantities (handfuls) of berries and had no significant effects and another two where berries were ingested in smaller amounts, with similar negative results.

Ingestion of green berries over several weeks by a 2-year-old child resulted in diarrhea, vomiting, and blood clots in the stool.[citation needed] Anemia and purpura [discoloration of the skin caused by subcutaneous bleeding] were also noted. A solanine alkaloid isolated from the stool was hemolytic to human erythrocytes.[7][unreliable source?]

Plant extracts have shown larvicidal activity against the mosquito Aedes aegypti while showing no toxicity to fish.[8][9] Plant extracts cause hematological changes in the freshwater fish when exposed to sub lethal concentrations.[10][11]

Psychoactivity[edit]

The mechanisms of the plant's putative psychoactive effects are currently unknown, and anecdotal data are extremely limited. In a rare discussion of traditional entheogenic use of the plant, Müller-Ebeling, Rätsch, and Shahi describe shamanic use of C. nocturnum in Nepal.[citation needed] They describe experiencing "trippy" effects without mentioning unpleasant physical side effects. Rätsch's Encyclopedia of Psychoactive Plants also describes a handful of reports of ingestion of the plant without mentioning serious adverse side effects.

Invasive potential[edit]

C. nocturnum has become widely naturalized in tropical and subtropical regions throughout the world, including Australia, New Zealand, South Africa, southern China and the southernmost United States, and is difficult to eradicate. It is classed as a weed in some countries.

In Auckland, New Zealand, it has been reported as a seriously invasive weed to the Auckland Regional Council and is under investigation. NS Forest and Bird is compiling an inventory of wild cestrum sites in order to place the plant on the banned list. The inventory can be viewed via Google Maps.[12] Some nurseries still sell it without warning customers of the dangers to native bush reserves.[citation needed]

Gallery[edit]

References[edit]

Further reading[edit]

  1. ^Hortus Third Cornell University, Western Garden Book 2007 Ed
  2. ^Medicinal and Poisonous Plants of Southern and Eastern Africa – Watt & Breyer-Brandwijk (1962)
  3. ^Erowid Cestrum Vaults : Cestrum Health Concerns. Erowid.org (2008-08-27). Retrieved on 2011-07-10.
  4. ^Al-Reza, Int J Food Sci Tech 44:1176 2009 doi: 10.1111/j.1365-2621.2009.01939.x
  5. ^Wu, Evid Based CAM 1456786 2017 PMID 28250789https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/28250789/
  6. ^What is solanine. Wisegeek
  7. ^http://www.erowid.org/plants/cestrum/cestrum_health1.shtml
  8. ^Patil CD, Patil SV, Salunke BK, Salunkhe RB (2011). "Bioefficacy of Plumbago zeylanica (Plumbaginaceae) and Cestrum nocturnum (Solanaceae) plant extracts against Aedes aegypti (Diptera: Culicide) and nontarget fish Poecilia reticulata". Parasitol Res. 108 (5): 1253–1263. doi:10.1007/s00436-010-2174-6. 
  9. ^Chetan Jawale; Rambhau Kirdak; Laxmikant Dama (2010). "Larvicidal activity of Cestrum nocturnum on Aedes aegypti". Bangladesh Journal of Pharmacology. 5 (1): 39–40. doi:10.3329/bjp.v5i1.4714. 
  10. ^CS JAWALE, LB DAMA (2010). "Haematological Changes In The Fresh Water Fish, Exposed To Sub-Lethal Concentration Of Piscicidal Compounds From (Fam: Solanaceae)"(PDF). National Journal of Life Sciences. 7 (1): 82–84. 
  11. ^Jawale C. S.; Vinchurkar A. S.; Dama L. B., Pawar (2012). "Cestrum nocturnum (l) a prospective piscicide for control of predatory fish channa punctatus (bloch.)". Trends in Fisheries Research. 1 (2): 14–17. 
  12. ^Cestrum wild locations – Google Maps. Maps.google.co.nz. Retrieved on 2011-07-10.

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