Alder 
Dreaming of an alder tree suggests a previously unknown health issue, as this tree has been used and known for centuries in the treatment of various ailments. Take this as a reminder to look after yourself and schedule a checkup if needed.
Alternatively, dreaming of an alder may symbolize fertility and stability.
Guava
A dream of seeing or eating a guava signifies prosperity and abundance. It generally symbolizes a good fortune lies ahead with growth and success.
Poplar
To dream of a poplar represents energy and strength.
Rubber
To dream of rubber represents your ability to readily adapt to ever-changing situations.
To dream of hitting someone with a rubber object signifies that what you are doing does not make much impact on others.
Forest
To dream that you are in or walking through the forest suggests a period of change in your life. Listen to your intuition. This dream can also suggest that you desire more simplicity in your life. You may be feeling burdened by the daily grind of life.
To dream that you are lost in a forest indicates that you are reaching deep down within your own subconscious to explore your true self.
**Please See Woods.
Walnut
To dream of a walnut is a symbolic representation of your mental acuity. You are using your intelligence and wisdom to solve a given problem or task. They can also symbolize abundant wealth or happiness.
The cracked walnut foreshadows that your hopes and aspirations for a particular situation will result in naught.
Beaver
To see a beaver building a dam indicates that you need to expend a great amount of energy and determination in order to attain your objectives. You need to confront issues that may exist between you and your associates. You will need these people as allies, as they are detrimental to the success of your ambitions. Without their loyalty, you will possibly face failure.
Flying
To dream of flying usually represents liberation from something in your waking life that had been 'holding you down' lately. Think back to the details of your surroundings before you took off. They can hint as to what you were trying to escape from.
You could've been atop the building of a school, which could represent academic achievements or a freedom of stress from work-related issues.
You could just as well have taken flight from the peak of a mountain, which would suggest the time-consuming defeat of an obstacle in your life. But where you came from is just as important as where you were going. So where were you going? The possibilities are endless. If you were simply soaring through the sky, this could be the beginning of a spiritual journey.
In Christianity, the sky holds the Heavens where the good would go to be one with the Father after they were separated from their bodies on Earth. In other religions, the sky is home to the Gods. Thus in dreams, to enter into the sky is to gain a sort of soulful knowledge, whether it is about yourself or about the world in general. This is generally a very good dream. To dream of flying peacefully into the sun is even better, possibly a good fortune is coming your way.
If you were not flying solely of your own accord, the thing which carried you will reveal more about your predicament. Perhaps you were in an airplane. This can suggest that your vast knowledge and mechanical skills were taking you to where you were headed. If you were riding a sort of creature on the other hand, like a dragon for instance, you must then look to the nature of the animal. Dragons are fierce, strong and wise. Therefore, you were 'riding' on these instincts or qualities in this situation.
Dreams of flying are always joyous ones. They foretell change, transformation and success. This is why they are so common. Everyone goes through phases in their life. Nothing ever stays the same all the time. Use them as a sign of good fortune and push on, knowing that you'll soon be 'flying high'.
Iceberg
To dream of an iceberg refers to your underutilization of talents, strengths, and abilities.
Oranges
To dream of orange trees symbolizes health and wealth. Eating oranges in your dream connotes a negative gut feeling, disapproval in your business associations, sickness in your family circle, and severance/failure of a lover.