Chemistry Reference and  Research
           
 
Periodic Table
- standard table
- large table
 
Chemical Elements
- by name
- by symbol
- by atomic number
 
Chemical Properties
 
Chemical Reactions
 
Organic Chemistry
 
Branches of Chemistry
Analytical chemistry
Biochemistry
Computational Chemistry
Electrochemistry
Environmental chemistry
Geochemistry
Inorganic chemistry
Materials science
Medicinal chemistry
Nuclear chemistry
Organic chemistry
Pharmacology
Physical chemistry
Polymer chemistry
Supramolecular Chemistry
Thermochemistry

Chokecherry


The Chokecherry (Prunus virginiana) is a species of bird cherry (Prunus subgenus Padus) native to North America, where it is fould almost throughout the continent except for the deep south and the far north. It is a suckering shrub or small tree growing to 5 m tall. The leaves are oval, 3-10 cm long, with a coarsely serrated margin. The flowers are produced in racemes of 15-30 in late spring (well after leaf emergence). The fruit are about 1 cm diameter, bright red, with a very astringent, and sour taste.

There are two varieties:

  • Common Chokecherry Prunus virginiana var. virginiana. Eastern North America. Leaves hairless underneath or downy only in the vein axils.
  • Western Chokecherry Prunus virginiana var. demissa. Western North America. Leaves downy underneath.


The wild Chokecherry is often considered a pest, as it is a host for the tent caterpillar , a threat to other fruit plants. However, there are more appreciated cultivars of the chokecherry, such as 'Goertz', which has a non-astringent, and therefore palatable, fruit. Research is being done at the University of Saskatchewan to find and create new cultivars to increase production and processing [1].

Chokecherry is closely related to the Black Cherry (Prunus serotina) of eastern North America; it is most readily distinguished from that by its smaller size (Black Cherry can reach 30 m tall), smaller leaves, and red (not black) ripe fruit.

The name chokecherry has also been used (as 'Amur Chokecherry') for the related Manchurian Cherry or Amur Cherry (Prunus maackii).


The chokeberries, genus Aronia, are often mistakenly called chokecherries. This naming confusion is easy to understand considering there is a cultivar of the chokecherry Prunus virginiana 'Melanocarpa' [2], [3], and a species of chokeberry named Aronia melanocarpa [4].

Sources

External links

01-04-2007 01:16:19
The contents of this article are licensed from Wikipedia.org under the GNU Free Documentation License. How to see transparent copy