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Herbs & Plants

Viola pedata

Botanical Name : Viola pedata
Family : Violaceae
Genus :  Viola L.
Species : Viola pedata L.
Kingdom : Plantae
Subkingdom : Tracheobionta
Superdivision : Spermatophyta
Division : Magnoliophyta
Class : Magnoliopsida
Subclass: Dilleniidae
Order : Violales

Synonyms:
Viola pedata L.

VIPEC Viola pedata L. var. concolor Holm ex Brainerd
VIPEL Viola pedata L. var. lineariloba DC.
VIPER Viola pedata L. var. ranunculifolia DC.

Common Name :  Viola pedata,   Bird’s Foot Violet, Crowfoot Violet, Pansy Violet

Habitat :Viola pedata  is native to  eastern N. America – New York to Wisconsin and south to Florida and eastern Texas. It grows in dry rocky banks, in open deciduous woods on well-drained soils and on the edges of ditches in acid sandy soils.  Commonly occurs in dryish soils in rocky woods, slopes, glades and roadsides.

Description:
It is a rhizomatous, stemless perennial (to 4″ tall) which typically features variably colored flowers, the most common color forms being bi-colored (upper petals dark purple and lower ones light blue) and uniform light blue. Each flower rests above the foliage atop its own leafless stalk. Blooms in early spring (March to May in St. Louis). Pedata in Latin means foot-like.

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Bird’s foot violet features deeply divided leaves which somewhat resemble a bird’s foot.

Height: 0.25 to 0.5 feet
Spread: 0.25 to 0.5 feet
Bloom Time: March – May   Bloom Data
Bloom Color: Lilac/purple

Cultivation:
Best grown in sandy or gravelly, dry to medium moisture, well-drained soils in full sun. Tolerates light shade. Good soil drainage is the key to growing this plant well. Does not spread by runners. May self-seed in optimum growing conditions. Considered more difficult to grow than most other violets.
Propagation :
Seed – best sown in the autumn in a cold frame. Sow stored seed in early spring in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle and plant them out in the summer. Division in the autumn or just after flowering. Larger divisions can be planted out direct into their permanent positions, though we have found that it is best to pot up smaller divisions and grow them on in light shade in a greenhouse or cold frame until they are growing away well. Plant them out in the summer or the following spring

Edible Uses: Young leaves and flower buds – raw or cooked. When added to soup they thicken it in much the same way as okra. Some caution is advised if the plant has yellow flowers since these can cause diarrhoea if eaten in large quantities. A tea can be made from the leaves. The flowers are candied.

Medicinal  Uses:
A poultice of the leaves has been used to allay the pain of a headache.  An infusion of the plant has been used in the treatment of dysentery, coughs and colds.  A poultice of the crushed root has been applied to boils.  The seeds have been recommended in uric acid gravel.  The plant parts and roots have been used as a mild laxative and to induce vomiting. A decoction of the above ground parts has been used to loosen phlegm in the chest, and for other pulmonary problems.

Other Uses:
Use as very good ground  cover. An infusion of the root has been used to soak corn seeds before planting in order to keep off insects

Disclaimer:
The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplements, it is always advisable to consult with your own health care provider.

Resources:
http://www.herbnet.com/Herb%20Uses_AB.htm
http://www.mobot.org/gardeninghelp/plantfinder/plant.asp?code=G280
http://plants.usda.gov/java/profile?symbol=VIPE

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News on Health & Science

Fish Oil Linked to Lower Alzheimer’s Risk

A substance found in fish oil may be associated with a significantly reduced risk of developing Alzheimer’s and other dementias, researchers reported yesterday…….click & see

The scientists found that people with the highest blood levels of an omega-3 fatty acid called docosahexaenoic acid, or DHA, were about half as likely to develop dementia as those with lower levels.

The substance is one of several omega-3 polyunsaturated fatty acids found in fatty fish and, in small amounts, in some meats. It is also sold in fish oil or DHA supplements. The researchers looked for a reduced risk associated with seven other omega-3 fatty acids, but only DHA had any effect.

The study, in the November’06 issue of The Archives of Neurology, used data from the Framingham Heart Study to follow 899 initially healthy participants, with a median age of 76, for an average of more than nine years.

The scientists assessed DHA and fish intake using a questionnaire and obtained complete dietary data on more than half the subjects. They took blood samples from all the participants to determine serum levels of fatty acids.

Ninety-nine people developed dementia over the course of the study, including 71 cases of Alzheimer’s disease. The average level of DHA among all the participants was 3.6 percent of all fatty acids, and the top 25 percent of the population had values above 4.2 percent. People in this top one-quarter in DHA levels had a 47 percent reduced risk of developing dementia, even after controlling for body mass index, diabetes, hypertension, smoking status and other known or suspected risks. Risk reduction was apparent only at that top level of DHA — those in the bottom three-quarters in DHA level showed no detectable difference in risk.

People who ate two or more servings of fish a week reduced their risk for dementia by 39 percent, but there was no effect on the risk for dementia among those who ate less than that.

The finding that DHA alone reduces risk, the authors write, is consistent with earlier data showing high levels of DHA in healthy brain tissue and low levels in the brains of people with Alzheimer’s disease.

Dr. Ernst J. Schaefer, the lead author of the study, was cautious in interpreting the results.

“This study doesn’t prove that eating fish oil prevents dementia,” he said. “It’s an observational study that presents an identified risk factor, and the next step is a randomized placebo-controlled study in people who do not yet have dementia.” Dr. Schaefer is chief of the Lipid Metabolism Laboratory at Tufts University.
The study was financed in part by Martek, a concern that manufactures DHA, and one author received a grant from Pfizer, France.

Eating fish is not a guarantee of having high levels of DHA. In fact, fish intake accounted for less than half of the variability in DHA levels. Other dietary intake and genetic propensities probably account for the rest. Dr. Schaefer pointed out that the kind of fish consumed is important. Fatty fish, he said, is best, and frying will cause DHA to deteriorate.

Supplements may be an additional source of DHA, but an editorial in the same issue, by Dr. Martha Clare Morris, an associate professor of medicine at Rush University Medical Center in Chicago, points out that there are no published human studies of the effects of omega-3 fatty acid supplementation. The Food and Drug Administration does not endorse DHA or fish oil capsules, but recognizes doses of up to 3 grams a day of fish oil as generally safe. High intakes of fish oil can cause excessive bleeding in some people.

Dr. Morris writes that there are few human studies examining the effect of mercury intake from eating seafood, and it is not known if the risks of eating fish outweigh the benefits.

But, she adds, epidemiological studies consistently show positive health effects from fish consumption on mortality, cardiovascular risk factors and, now, dementia.

Source:The New York Times

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