Monday, September 2, 2013

Minnesota Mild in the Tropical Rainforest Plant of the Day: Cola Nut (Cola acuminata)


Sunken Garden Flower Show
Today is a cool Minnesota day.  At 9:50am, the outside temperature is a cool 54 degF.  As I enter the conservatory, I notice that all of the side windows are open in the North Garden and the Sunken Garden.  Brrrrrrrrrr.   Very cool in what should be a warmer tropical environment.  I, of course, wore my shorts because the conservatory is always very warm!  Not today!  So I actually spent much of my time in the Palm Dome where the windows were closed and the air temperatures more comfortable.

As I reflect on the coolness inside the North Garden, I recall that there are multiple types of rainforests that successfully sustain forest species.  For example, there are the Pacific temperate rainforests in northwestern United States and the beautiful montane forests of central and south America. Perhaps a few of the plants in the North Garden are relishing (in their own way) the coolness that the open windows are bringing into their environment today! 
One of the Palm Dome bromeliads
  
With those thoughts, I present a few pictures of plants in the Palm Dome.  The bromeliads are quite beautiful and clearly draw the interests of most visitors.  The Bromeliaceae (the bromeliads) are a family of monocot flowering plants native mainly to the tropical Americas.

The Boat Lily plant (Tradescantia spathacea), commonly called Moses-in-a-basket or oyster plant, has leaves that are a dark green on top with a vivid violet color underneath.  The small white three-petaled flowers poke out of the boat-shaped purple bracts nestled in the leaf axils.  Flowers and seed are produced all year in the native habitats in Mexico and Central America.
Boat Lily

Boat lily is thought to have been used cosmetically by the central American Mayans.  Today, the juice is used to clean wounds by some people in Mexico, although it's also known that some people have skin sensitivities to this juice.  

Crepe Myrtle Bonsai
Off of the Palm Dome area is the new Ordway Center Japanese Bonsai collection.  I don’t want you to miss this beautiful photo of one of the conservatory’s bonsai plants.  This is a Crepe Myrtle (Lagerstroemia indica) tree that has been trained to grow small. Many people don’t realize that bonsai trees still flower and produce seed and the results can be spectacular.  I took a bonsai class last year and have my own juniper bonsai tree at home.  I’ve had it for a year and it’s still looking great (and with the tiniest trimming, still looks like a bonsai tree – yea!).

Cola Nut Flowers
I return to the North Garden to choose the plant of the day which is the Cola Nut, aka Kola Nut, (Cola acuminata), native of tropical Africa.  The fruits of this plant contain two alkaloids: caffeine and theobromine.  These alkaloids are stimulants that fight tiredness, reduce hunger and thirst.  They can be roasted, pounded or chewed and can be added to drinks such as tea or milk, or to cereals like porridge.  The original Coke cola beverage is said to have originated from the use of this nut in the product (hence the name).

For more information (all websites Accessed September 2, 2013):

United States Department of Agriculture Plant Database:

Center for International Forestry Factsheets:
http://www.cifor.org/publications/pdf_files/factsheet/cola_eng.pdf 

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