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

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  • A Photographic Journey of California Lupines with Stuart Wilson
    7:00 pm-9:00 pm
    05-04-2017

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

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

    CHAPTER MEETING MAY 4TH IS OUR NEXT MEETING

    A Photographic Journey of California Lupines

    Stuart Wilson has long held a love and fascination of the genus Lupinus. After many springs spent photographing our local species, he decided to embark on a project to photograph every species and variety (104) found in California. Traveling throughout the state in 2015 and 2016, he has reached his goal (with a few noteworthy exceptions). He will give an overview of the great variety of forms found in the genus with tips on identification.

    Stuart Wilson has been interested in photography since high school. After college in Orlando, Florida, he moved to Santa Barbara to study at Brooks Institute. He has traveled extensively in pursuit of nature subjects such as insects, amphibians and reptiles, and other small animals. He markets his photography through Science Source, a stock agency based in New York. He produced most of the photographs for Joan Lentz’s book. A Naturalist’s Guide to the Santa Barbara Region. He is a past president of Channel City Camera Club in Santa Barbara. Visit Stuart’s website to get a taste of the beautiful photographs featured in his talk.

    LUPINE WORKSHOP ADDED PRIOR TO MEETING – COME AT 6PM TO ATTEND THE WORKSHOP

    The CNPS monthly meeting Thursday, May 4 at the San Luis Obispo Veterans Hall will kick off with a workshop from 6:10 to 7:00 pm on lupine identification led by Dr. Dave Keil.

    Our county is home to a diversity of Lupinus species, two of which grow nowhere else.  Dave will give a quick intro to lupine features, and participants will then have the opportunity to try out the draft treatment on Lupinus from the nearly completed second edition of The Vascular Plants of San Luis Obispo County, California.  Bring your hand lenses!


    June is bringing a crammed-full sales table to the May meeting. Think of all those birthday gifts you have to buy, all your ugly T-shirts that need replacing, the thank-you gift to your maiden aunt, and the financial support you wish to give CNPS.

    NEW ITEM JUST IN TIME FOR SUPERBLOOM. As well as the downloadable version, we have a CD with two versions of the program available at the sales table

     


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  • Indian Knob on the Guidetti Ranch
    9:00 am-2:00 pm
    05-13-2017

    268-366 Indian Knob Rd, San Luis Obispo, CA 93401, USA

    268-366 Indian Knob Rd, San Luis Obispo, CA 93401, USA

    Guidetti Ranch

    Saturday, May 13, 9:00 am, Indian Knob on the Guidetti Ranch with ECOSLO

    Hike with a docent from the SLO Stewards Program to Indian Knob at Guidetti Ranch in the hills just south of the city of San Luis Obispo. This is a hike is one that can only be done with a docent since it is a private ranch under a conservation easement, and we only do it three or four times a year. Hopefully during the hike, we will see the two endemic flowers which the ranch has on it – the Indian Knob Mountain Balm and the Pismo Clarkia.

    We will meet at 9:00 A.M. to carpool to the ranch, since there is not very much parking at the entrance to the ranch. This is a moderately strenuous hike, is approximately eight miles with an approximate 600 feet gain in elevation. The last half mile or so to Indian Knob the trail is very overgrown, so be prepared for some bushwacking. Since all of the hikers are required to stay with the docent, you will not be able to turn back whenever you want, so you must be prepared to hike the full eight miles.

    Bring water, sunscreen, and a lunch with you; wear sturdy shoes; and be prepared to get back to our cars about 2:00. Also, since this is on private property, no dogs are allowed.

    Only 20 people are allowed on this hike, so you must email Carolyn Huddleston, who is a volunteer with ECOSLO (the Environmental Center of San Luis Obispo) to reserve a spot; her email is carolyn.j.huddleston@gmail.com. If you are unable to go with us this time, you can email Carolyn and get your name put on the notification list for the next hike at the Guidetti Ranch, and she will email you the next time one is planned.

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  • Arroyo de la Cruz & North County Bluffs
    9:00 am-12:00 pm
    05-14-2017

    2650 Main St, Morro Bay, CA 93442, USA

    2650 Main St, Morro Bay, CA 93442, USA

    Arroyo de la Cruz beach

    Sunday, May 14th, 9:00 am, Arroyo de la Cruz, North SLO County.

    Join us for this Mother’s Day visit to one of the “hottest” spots for botanical diversity in San Luis Obispo county. Our leader D.R. “Doc” Miller will take us to see the unique species located on these coastal bluffs. The Arroyo de la Cruz area features a variety of plant communities and a number of endemic and rare plants found only in this relatively small area.

    Meet at the Elephant Seal Overlook (first entrance on the left going north) at 9:00 am. The field trip will last roughly 3 hours.  Be sure to bring water, snacks, sturdy shoes, sunscreen, a hat, and layered clothing, as needed.

    For those wanting to carpool from the south, meet in the parking lot of Spencer’s Market in Morro Bay (2650 Main Street) at 8:30 am.

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

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  • Growing Grounds Farm Plant Sale
    11:00 am-4:00 pm
    05-16-2017

    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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