Dedicated to the preservation of California's native plants

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.

Hot Topics

Centennial Development at Tejon Ranch

Centennial Development at Tejon Ranch

The LA County Board of Supervisors will consider whether or not to approve the proposed Centennial development next Tuesday, December 11. Although this project is located in LA County, we believe this is an issue that impacts all of California, both in terms of our...

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Save the date

CNPS-SLO ANNUAL BANQUET WILL BE HELD JANUARY 12, 2019 AT THE MORRO BAY VETS HALL.  Details coming...

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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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Membership News

Your gifts of membership are what sustain the chapter and ensures our vital work in conservation, education, horticulture and plant science continues to grow and flourish.

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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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Invasive Species Report – Fennel (Foeniculum vulgare)

Invasive Species Report – Fennel (Foeniculum vulgare)

The extremely invasive Foeniculum vulgare is in the carrot (Apiaceae) family. It is native to Southern Europe and is problematic in coastal California and is also present throughout the western US all the way to Texas. I’ve encountered Fennel on Santa Catalina Island...

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President’s Message December 2018

President’s Message December 2018

In past issues of Obispoensis, I have noted some of my observations on the impact of invasive plants in our state – their negative effects and a bit on their historical introductions. My musings on the origins of such a domineering presence by these plants,  led me to...

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Growing Native Plants from Seeds is Fun

Growing Native Plants from Seeds is Fun

For a native plant novice like me, joining the California Native Plant Society seemed like a good idea so I became a member of the San Luis Obispo chapter. My spouse and I attended our first meeting a year ago last October. That is where I met Marti and the real fun began.

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Botta’s pocket gopher

Botta’s pocket gopher

Last month we discussed California ground squirrel problems, this month I will focus on the gopher aka Botta’s pocket gopher (Thomomys bottae). For most of us, gophers can sometimes be a headache but a livable one. They come and go between you and your neighbor’s yard, only losing a couple of plants a year. For yards like these I recommend using …

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Salvia spathacea (Hummingbird Sage)

Salvia spathacea (Hummingbird Sage)

The cover of this Obispoensis is another beautiful water color by Heather Johnson. In our area Hummingbird sage can grow in an extensive mat. Its leaves are large (10 in (20 cm) long and 3 in (8 cm) wide). The leaf surface appears quilted. Its family affiliation (Mint or Lamiaceae or Labitae) is shown clearly in Heather’s water color.

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Defeat Dudleya Poaching through Propagation

Defeat Dudleya Poaching through Propagation

California Dudleyas are easy to grow. Illegal wild collection can be disrupted via legal propagation. I propagate Dudleya with middle school science classes. If seventh-graders can grow these natives from seed, you can too. Home gardens are a good source of Dudleya...

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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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Native Plant Pictures on Flickr