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

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.

Hot Topics

Succulent Smuggling Comes to the Central Coast

Succulent Smuggling Comes to the Central Coast

Last spring, the story of a Dudleya smuggler in Mendocino County hit the news when an observant person noticed something odd while waiting in line at the local post office. (Here's a link to one of the news outlets covering that story.) Now we have our own case of...

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Maintaining Garden Tools

Maintaining Garden Tools

February is pruning month and with all the rain its time to get out the pruning tools. A dull, unsharpened tool can be dangerous to use so it is wise to sharpen them before use. Some general rules about sharpening tools. First, always wear gloves when sharpening...

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Winners and losers under the impact of intense drought

As we have just experienced an intense and prolonged drought, a team of scientists has just published in Nature Climate Change Letters an analysis of impacts in the Carrizo Plain. They quantified the responses of 423 species of plants, arthropods, birds, reptiles and...

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Wildflowers of San Luis Obispo 2nd Edition

Wildflowers of San Luis Obispo 2nd Edition

The Revised and Expanded 2nd Edition of our wonderful Wildflowers of San Luis Obispo, California has arrived just in time for the holidays! 20 new plants have been added and the SLO City open space map has been updated including trailhead directions. The new cover photograph of Woolly Blue Curls with the distant view of an oak studded grassy hillside puts you on our Central Coast.

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European Beachgrass (Ammophila arenaria)

European Beachgrass (Ammophila arenaria)

Ammophila arenaria is in the Poaceae family. It is native to northern Europe and
spread from plantings from the late 1800s to the late 1900s. Andrea Pickart has
written that European beachgrass is the most pervasive exotic plant species
currently threatening coastal dunes on the west coast of the U.S. and is invasive in
every major dune system from Santa Barbara County …

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Toyon (Heteromeles arbutifolium)

Toyon (Heteromeles arbutifolium)

Toyon, Heteromeles arbutifolium is a wonderful, hardy, native California evergreen shrub. It can be a good screen in the yard, growing up to 6 feet fairly quickly. It tolerates soils from serpentine to clay, to sand. It is not as flammable as other chaparral shrubs. It is a great forage plant for bees, butterflies, and …

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Help is needed at the sales table

We could use some help behind the counter at some of our meetings and events. You can be as involved as you like: selling and writing receipts, report on the sales after the meeting, even order books. Please consider a few hours to keep us operating!

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Event Calendar

< 2017 >
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  • New Reservoir Canyon Trail Plant Walk
    9:00 am-12:00 pm
    12-02-2017

    Reservoir Canyon Trail, San Luis Obispo, CA 93401, USA

    Reservoir Canyon Trail, San Luis Obispo, CA 93401, USA

    Saturday, Dec. 2nd, 9:00 am to 12:00 noon

    New Reservoir Canyon Trail Plant Walk

    Join us for a plant ID walk in Reservoir Canyon and the new trail that leads to Bowden Ranch. The focus of this fieldtrip will be riparian and serpentine plant communities, plants one would regularly encounter throughout much of the greenbelt surrounding the city of San Luis Obispo. It is 4 miles up and back, ascending 800 ft. The ascent is gradual, along a winding trail towards the top of the ridge. Come and learn the easy to identify species. Pick out plants that attract you. Bring native plant samples with you to be identified.

    Meet at Santa Rosa Park in SLO at 8:45 am (to car pool to the trailhead) or at the Reservoir Canyon trailhead at 9:00 am (parking can be limited). Make sure to bring water and snacks. Sturdy shoes, sunscreen, hats, and layered clothing are recommended. No RSVP needed and no dogs please. Also, bring paper and pencil to take notes, and a camera for a photo record. If you would like a preprinted copy of the plant list for this walk, let the hike leader know 24 hours in advance.

    For more information, contact Bill Waycott, (805) 459 2103, bill.waycott@gmail.com.

    Rain cancels.

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  • Chapter Meeting December 2017
    7:00 pm-9:00 pm
    12-07-2017

    801 Grand Ave, San Luis Obispo, CA 93401, USA

    801 Grand Ave, San Luis Obispo, CA 93401, USA

     

    SLO Chapter December 7th Meeting 7:00 social 7:30 program Vets Hall, SLO

    Program: Travels with a Geobotanist: Plant Life on Serpentine and other Harsh Soils with Dr. Nishi Rajakaruna

    Dr. Nishi Rajakaruna fell in love with plants at a young age during a visit to Sinharaja Rainforest, Sri Lanka. He received a BA in human ecology from the College of the Atlantic, and an MS and PhD in botany from the University of British Columbia. He conducted post-doctoral research in plant ecology at Stanford University. His research examines how plant diversity, ecology, and evolution are influenced by serpentine and other ‘unusual’ soils, including those with heavy metals. He has taught botany at College of the Atlantic and San Jose State University during the last 12 years and is currently an associate professor in plant biology at California Polytechnic State University.

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  • Growing Grounds Farm Plant Sale
    11:00 am-4:00 pm
    12-19-2017

    3740 Orcutt Rd, San Luis Obispo, CA 93401, USA

    3740 Orcutt Rd, San Luis Obispo, CA 93401, USA

    Growing Grounds Farm is a non-profit wholesale nursery located in San Luis Obispo. Growing Grounds offers California natives, Mediterranean perennials, succulents, restoration and mitigation plants, a wide variety of grasses, and a selection of perennial herbs.

    Growing Grounds Farm is a wholesale nursery and does not sell directly to the public except on the 3rd Tuesday of each month from 11 a.m. to 4 p.m

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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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