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.

Hot Topics

Claytonia perfoliata (Miner’s Lettuce)

Claytonia perfoliata (Miner’s Lettuce)

Heather Johnson has a new watercolor for us to use on the cover of this issue of Obispoensis. It’s most commonly identified around the central coast as miner’s lettuce (Claytonia (Montia) perfoliata). The situation where a leaf blade base appears to be passed through (perforated) by its stem is said to be perfoliate.

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Italian Thistle (Carduus pycnocephalus)

A member of the Asteraceae family, Italian thistle is an annual herb native to the Mediterranean region and is widespread in California, Oregon and Washington, however it is not found east of the Sierra Nevada. It was accidentally introduced into United States (Batra et al. 1981) and California (Goeden 1974) in the 1930s.

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October Seed Exchange

The summer has flown. It seems like I was just admiring the blooms on my Clarkia. Now their seeds are in little packages ready for the seed exchange and I am on to watching the blossoms on my many Eriogonums. I am waiting for the seeds to ripen so those can end up in bags for the exchange as well. In between I have been collecting from Chlorogalum, Ceanothus, Sage, Sidalcea, Silene and numerous other plants.

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Building a Chapter Photo Collection

Our chapter would like to have a high quality photo of every species in our county, as will be described in Dr. David Keil’s Flora.
We would like as many pictures as possible to be usable both for scientific purposes and for use in digital media, and as such we
would like to be the owners of the photos under copyright.

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Email updates, the August meeting, and the CNPS Fire Recovery Guide

Bill suggests members sign up for email updates and offers his notes from the August meeting featuring a presentation by Greg Rubin who gave a detailed presentation on landscaping with fire resistant natives. Also, the CNPS Fire Recovery Guide is available for download and in hard copy via the state website.

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Conservation Notes

There has not been a lot of progress on the two large projects of greatest immediate concern. Chapter members attended several meetings, one of which was at the Coastal Commission, on plans to build a southern access to Oceano Dunes State Vehicle Recreation Area.

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Event Calendar

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  • Seed Exchange
    6:00 pm-7:15 pm
    10-04-2018

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

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

    seeds image

    The seed exchange is back!

    The workshop time slot (6.00-7.15) before the October meeting is reserved for our second seed exchange. So think seed collection. There will be a few minor differences. There has been a request to provide a picture of the plant that the seeds will become. This will help those who might not be familiar with the names choose plants they want to try. Our chapter will supply seed envelopes so we will be asking those bringing seeds to just bring a bulk collection of cleaned seeds labelled with genus and species, where and when it was collected and a picture. There is no need to spend your time separating into little envelopes.

    The seed exchange is an opportunity to share seeds from native plants which are growing in your landscape. We will not sell seed. Do remember the legal issues of seed collection. It is illegal to collect seed from private property and public spaces without permission. If you happen to have access to rare plant seed DO NOT collect it. That seed should be reserved for seed banks and those with the skills to nurture the plant to maturity.

    Keep in mind that a collection of plants grown from seed has more genetic diversity than plants grown from cuttings. Depending upon what your goal is that may be a positive point. But garden grown plant seed is not ideal for restoration planting. One would want the more pure genetics of a wild population to use for restoration. Plants grown from seed might not be like the parent plant.

    There is an article on our website under Resources that has information on seed collection and cleaning (link). You might find it helpful. Find it under Resources > Growing Natives.

  • Dessert Potluck and Members’ Slide Show
    7:00 pm-9:00 pm
    10-04-2018

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

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

    Bring a dessert to share and your 15 best digital photos. Please bring them on a flash drive and number/letter titles consecutively if you wish to show them in a particular order.

    The meeting will be preceded by a Seed Exchange at 6pm.

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  • Trivia Night
    6:00 pm-8:00 pm
    10-12-2018

    570 Higuera St #104, San Luis Obispo, CA 93401, USA

    570 Higuera St #104, San Luis Obispo, CA 93401, USA

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  • Autumn walk in Atascadero
    9:00 am-12:00 pm
    10-14-2018

    9943-9949 Carmelita Ave, Atascadero, CA 93422, USA

    9943-9949 Carmelita Ave, Atascadero, CA 93422, USA

    Sunday, Oct. 14th, 9:00 am to 12:00 noon, Autumn walk in Atascadero.

    Join us on the new trail at Three Bridges Oak Preserve. This trail starts in a lovely blue oak woodland, ascends into chaparral, and ends in stands of madrone and views towards the east. It is 4 miles up and back, ascending 800 ft.  Come to learn the easy to identify plant and animal species.  To reach the trailhead, use a smart phone for guidance, because there are several windy streets involved.  Make sure to bring water and snacks. Sturdy shoes, sunscreen, hats, and layered clothing are recommended. No RSVP needed and dogs on a leash. Contact Bill Waycott, 805-459 2103. Rain or threat of rain cancels.

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November
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November
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

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.