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Results for: 'invasive plants'

3:40

Caulerpa

By: plintilh

how can plants grow without cell walls?

2:02

Looking at pattern in plants

By: plintilh

The meaning of pattern.

59:27

Guest Interview: Guido Mase' on Entheogens/Psychedelics and Sacred Plants

By: kcelmer

Guido Masé RH(AHG) is a clinical herbalist, herbal educator, and garden steward specializing in holistic Western herbalism, though his approach is eclectic and draws upon many influences. He spent his childhood in Italy, in the central Alps and i...

0:55

Sanitation

By: uvmext

Like people, plants have strong mechanisms to prevent the spread of microorganisms within their tissues. Trees are capable of "walling off" wounds to prevent infections from spreading throughout the tree. This healing process also slows, and event...

1:29

Fall Color

By: uvmext

Autumn colors in leaves of maple trees is an annual phenomenon that is highly prized for its beauty and is also economically important. As day length shortens, the tree stops making new green chlorophyll pigment while the chlorophyll already in th...

1:37

Shade Tolerance 1

By: uvmext

All green plants, which includes trees, need sunlight to produce energy for survival. Some trees can satisfy their basic needs with less light than others. Sugar and red maples are two examples of such trees. They are both considered shade-toleran...

1:31

Photosynthesis

By: uvmext

The sugaring season has been over for a while. Maple trees ended their annual period of dormancy when their winter buds broke, allowing new leaves to emerge. These lush green leaves are now working to produce all the energy needed for the tree to ...