To set things straight there's no such coin.
> Indian, not "indain"
> Penny, not "pennie"
> Indian Head OR wheat but not "Indian Head Wheat"
Indian Head cents were made from 1859 to 1909. Wheat cents were made from 1909 to 1958. They're completely different. There are pictures at many sites - www.coinfacts.com is one place to look.
Wheat cents were struck from 1909 to 1958 and have a picture of Lincoln on them, just like modern pennies. Your coin is simply called an Indian Head cent. Please see the Related Question for more.
Look at the coin again. The first US one cent coin was struck in 1793.
There is no such thing as a "wheat head penny". They're either called Lincoln-head cents or wheat-ear cents because the back shows wheat stalks called "ears" (like ears of corn). Please see the Related Question for more information.
it turns like a green-ish color
Barley looks very much like wheat. If you've seen a wheat plant before, then barley has often much longer awns (those long things that stick out from the seeds on the seed head) and is often a more yellowish colour. Wheat tends to be more reddish in colour, with shorter awns. The seeds are not clumped together as wheat is, as the seeds are a bit more smoother on the head than wheat. In most barley seed heads, there are less seeds on a barley seed head than on a wheat seed head. See the links below for pictures of barley plants and seed heads and pictures of wheat plants for comparison.
Really long and have a big head.
Wheat is more often found in ales, than lagers. Small amounts of wheat can be added to ales to add head-retention to a beer. Some ales, like German-style Hefeweizens, can be over 50% malted wheat.
The 1851 Indian Head dollar is a well known novelty piece, so a real coin does not exist.
A chief Indian wears pants and a vest like other Indian's. You can tell who the chief is by what is on his head. The chief wears an Indian headdress that hangs to the floor. The headdress is colorful and has feathers that line the border.
1847 is a common date large cent but if the coin has so much wear you think it looks like a Indian head it's likely only worth $10.00
A clipped Indian Head penny can have numismatic value as an error coin, depending on the severity of the clipping and overall condition. A misprinted Indian Head penny with a visible error, like an off-center strike or double die, can also be valuable to collectors. The value of these coins can vary based on factors such as rarity and demand.
Sorry, no Indian Head cents in 1803, the first one was struck in 1859. Please look at the coin again and post new question.