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Every plant species has certain environmental requirements for sunlight, temperature, soil conditions, moisture, drainage, exposure, etc. that determine where it can grow successfully. The idea of plant communities – of plants with similar requirements growing together in specific places on the landscape – originated near Walnut Canyon in the late 1880s. More information is available from the link below.
Plant identification information is available at the on-line herbarium below.

Related Information
more about plant communities

On-line herbarium
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