lacey-leafed, tap rooted plants first grow in windswept highlands of afghanistan. Greeks used as a digestive tonic when they overeaten other foods.Lewis and clark concluded they must have been indigenous to north america.

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What is your question?

1. The lacy –leafed, tap-rooted plants grew first on the windswept highlands of Afghanistan.

2. The Greeks used this plant as a digestive tonic when they had overeaten other foods.
3. The Romans disdained this plant as food, but maintained that it improved the flavor of lambs fattened on the plant.
4. The Jamestown colonists share the roots with their Indian neighbors, who traded with other tribes.
5. So widely traded were the seeds that Lewis and Clark concluded that they must have been indigenous to North America.
6. What vegetable native to Afghanistan became a favorite of American Indians?

http://en.wikipedia.org/wiki/Chervil

1. Go to http://www.google.com

2. Type in lacy-leaved plants Afghanistan highlands (or whatever search terms you need).

3. Read different search results until you find what you need.

4. Re-search with different search terms for each different item you need to know.

The lacey-leafed, tap-rooted plants mentioned in your description are most likely referring to dandelions (genus Taraxacum). Dandelions are typically found in windswept highlands, including parts of Afghanistan. They have a distinctive lacy appearance to their leaves and a deep taproot.

The Greeks, known for their understanding of medicinal plants, used dandelions as a digestive tonic, particularly after overeating. They believed that dandelions could help alleviate indigestion and improve digestion.

In the context of Lewis and Clark, it is believed that they concluded dandelions must have been indigenous to North America during their expeditions in the early 19th century. Dandelions are now commonly found throughout North America, and their presence likely led to this conclusion.

To find this information, you could do the following:

1. Research plants found in windswept highlands of Afghanistan: Look for plant species that are native or commonly found in mountainous regions and have the described characteristics such as lacy leaves and taproots.
2. Investigate ancient Greek medicinal practices: Look for information about common digestive tonics or remedies used by the Greeks. Dandelions are mentioned in ancient Greek texts for their medicinal properties.
3. Study Lewis and Clark's expeditions and findings: Read historical accounts or scientific literature related to Lewis and Clark's exploration of North America, particularly any references to plants they encountered, such as dandelions.

By combining information from these different sources, you can confirm that dandelions align with the provided description.