Question
Hello, I was hoping you could help me.
 Does molassas come from a tree? and if so which one? if not how is it made?
  Thank you I look forward to the answer.

Answer
No!
Molasses or treacle is a thick syrup by-product from the processing of the sugarcane or sugar beet into sugar. The word molasses comes from the Portuguese word mela鏾, which is in turn the Greek mellas ?honey. The quality of molasses depends on the maturity of the sugar cane or beet, the amount of sugar extracted, and the method of extraction.

Cane molasses
Sulphured molasses is made from green, not yellow, sugar cane and is treated with sulphur fumes during the sugar extraction process. The sugar cane plant is harvested and stripped of its leaves. Its juice is then extracted from the canes, usually by crushing or mashing. The juice is boiled to concentrate and promote the crystallisation of the sugar. The results of this first boiling and removal of sugar crystal is first molasses, which has the highest sugar content because comparatively little sugar has been extracted from the juice.

Second molasses is created from a second boiling and sugar extraction, and has a slight bitter tinge to its taste.

The third boiling of the sugar syrup gives blackstrap molasses. The majority of sucrose from the original juice has been crystallized but blackstrap molasses is still mostly sugar by calories, but unlike refined sugars, it contains significant amounts of vitamins and minerals. Blackstrap molasses is a source of calcium, magnesium, and iron. One tablespoon provides up to 20 percent of the daily value of each of those nutrients. Blackstrap is often sold as a health supplement, as well as being used in the manufacture of cattle feed, and for other industrial uses.

Sugar beet molasses
Molasses from the sugar beet is different from cane molasses. Only the syrup left from the final crystallisation stage is called molasses; intermediate syrups are referred to as high green and low green and these are recycled within the crystallisation plant to maximise extraction. Beet molasses is about 50% sugar by dry weight, predominantly sucrose but also containing significant amounts of glucose and fructose. The non-sugar content includes many salts such as calcium, potassium, oxalate and chloride. These are either as a result of concentration from the original plant material or as a result of chemicals used in the processing. As such, it is unpalatable and is mainly used as an additive to animal feed or as a fermentation feedstock.

It is possible to extract additional sugar from beet molasses through a process known as molasses desugarisation. This technique exploits industrial scale chromatography to separate sucrose from non-sugar components. The technique is economically viable in trade protected areas where the price of sugar is supported above the world market price. As such it is practised in the US and parts of Europe.

Trivia
Molasses is a chelating agent. A rusty object placed for two weeks in a mixture of one part molasses to nine parts water will lose its rust due to the chelating action of the molasses.[citation needed]
A famous incident involving molasses was the Boston Molasses Disaster on January 15, 1919, in which a large molasses storage tank burst and flooded a neighborhood of Boston, killing 21 and injuring 150.
The British pie treacle tart does not use any treacle but golden syrup.
Molasses is the base material for fermentation into rum.
Molasses can be used as carbon source for in situ remediation of chlorinated hydrocarbons. See biostimulation.
Molasses can be used as the fuel in ANFO, though the practice is largely discontinued.
English alternative band Radiohead have a song called Molasses, found as a B-side to the High and Dry single.