The mission of the California Native Plant Society is to increase understanding and appreciation of California’s native plants and to conserve them and their natural habitats through education, science, advocacy, horticulture and land stewardship.

Dedicated to the preservation of California's native plants

Hot Topics

2019 Plant Sale

2019 Plant Sale

Native  Plant Sale This Saturday – November 2, 9am-2pm – Pacific Beach High School (at Target Intersection), SLO

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Wildland Fire Buffers

The impact on plant communities due to mandated vegetation clearance at the Wildland-Urban Interface appears to be extremely variable, even along individual sites such as the pine forest in Cambria. In some areas we have been told that all small trees and shrubs were removed, and in others they were selectively preserved. CNPS urges members to photograph treatment areas, so that we can better estimate the long term ecological effects.

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A larger need for conservation and protection

As a passionate supporter of California’s native plants, from within my heart I often hear a voice that calls me towards the greater humanitarian perspective, one that encompasses an even larger need for conservation and protection. Here are the opening remarks made by Dr. Martin Luther King, Jr. when accepting the Nobel Peace Prize on December 11th, 1964, as a call to acknowledge this greater perspective.

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Ethnobotany Notes: Catalina Cherry

You may recognize this as a fruit tree genus including cherries, apricots, plums, and peaches. It attracts butterflies, bees, and pollinating flies. One of my favorites is the Prunus lyonii, or Catalina cherry.

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Safe Insect Repellents

Fall’s warm weather, often times referred to as “The Indian Summer”, creates the perfect condition for garden insects to explode overnight. Before you know it, there could be a full fledged war happening in your backyard. Luckily I have some tricks up my sleeve to keep these bugs at bay.

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Event Calendar

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Volunteer at the Hoover Herbarium

During the volunteer sessions at the Hoover Herbarium, people can take part in any number of activities.  One of our primary responsibilities is mounting new specimens.  This involves taking dried and pressed plants and glueing them to paper.  When we mount plants, we do it in such a way that those specimens will last for hundreds of years.  Each specimen is a physical record of what plants occurred where and when.  Without this valuable information we wouldn’t know when a species goes extinct, expands or contracts its range, or where species occur.  After mounting, the specimens are databased and geo-referenced.  Then they are filed into the main collection. We have over 80,000 specimens at the Hoover Herbarium.  We are also working on a SLO Voucher Collection, which will contain one representative specimen for each species in the county.  Volunteers look through our specimens and pick the one that should be added to the Voucher Collection.  Additionally, we are actively working on our moss and lichen collections.  Volunteers can choose what aspects of the work they would like to participate in.  Any and everyone is welcome. The Hoover Herbarium is located on the 3rd floor of the Fisher Science Building (33) in rooms 352 and 359.

Starting Sept 18th, the herbarium volunteers sessions will be Mondays from 3-5 pm and Fridays 9 – 1.
Parking permits are required on campus Monday through Thursday, 7:00 am through 10:00 pm; and Friday, 7:00 am through 5:00 pm. You can either buy a $6 day pass, a $4 3-hr pass, park in a metered space, ride the bus, or park off campus and walk in.  Questions: email Jenn Yost at jyost@calpoly.edu

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PHOTO GALLERY

Fiscalini Ranch, January, 2019. Cambria, California. Marlin Harms.

Hypogymnia sp., Tube Lichen. Marlin Harms.

Phaeolus schweinitzii, Dyer’s Polypore.
Marlin Harms.

Mycena purpureofusca, Cone-dwelling Mycena. On cone of Monterey Pine, Pinus radiata. Marlin Harms.

Coastal Lichens on Rock–Caloplaca & Acarospora. 
Marlin Harms

Gymnopilus spectabilis, Laughing Gym, After Showers. Marlin Harms.