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Spreading the Word
Typical Appearances
Briefing
Prevention
First Aid
Medical Care
Identification
Stems
Reproduction
Foliage

The Basic            
Arrangement
Seasons
Development
Death

Variation            
Genetic
Light
Stem Growth
Soil
Male vs Female

Risk Management

Biochemistry

Anecdotes

Bibliography

Appendices

Dermatology
Anacardiaceae

About the Author

 

Variations in Foliage

Soil Condition

Heres a color that occurs when the soil is saturated with water. This picture was taken on the east side of Black Hill March 12, 2000. Water was running along the surface of the ground:

 Soil

Purplish leaf color can also be caused by soil nutrients. For example, there is a quarter of an acre in Los Osos Oak Reserve where the humming bird sage and poison oak turn purple in the fall.

 

All content copyright Dr. Curt Beebe. Please do not use without permission.