Requesting Native Plant Lists

Requesting Native Plant Lists

If you have a list of native plants observed in a specific area (e.g., Morro Bay State Park) or along a trail (e.g., Hazard Peak Trail at Montaña de Oro), CNPS wants to receive a copy. CNPS member Madeline Fay has volunteered to review the lists and bring the taxonomy up to date using the latest scientific names. With permission, the corrected copies will be placed on the Chapter website. Please contact Madeline by e-mail at, and she will be happy to work out the details with you. Thank you.

Conservation: Margarita Area, Biosolids, and Carbon Recycling

Conservation Committee Update

Margarita Area Specific Plan development area

When developers graded a population of Sanicula maritima without getting a permit from the California Dept. of Fish and Wildlife, the Department, the City of San Luis Obispo and CNPS were concerned. It turns out several populations sit in the Margarita Area Specific Plan development area, and the fate of the populations regarding mitigation is, at the time of writing, unclear. Whatever the outcome, our chapter will conduct a survey of the county to see if we can find any more populations of the plant and to assess the possibility of starting new populations. Bear in mind that CNPS has a long standing policy against mitigating losses by moving plants to other sites. Transplantation seldom works, and is not a valid mitigation for destroyed habitat in the Margarita Specific Plan. Gaining knowledge of the plant’s status and the most suitable habitats will better inform our response to this issue.

Land application of biosolids

County planners took a proposed revision of the ordinance on the land application of biosolids, the ‘nice’ term for the dried sludge coming from sewer plants. Planners wanted to start an EIR but a split Board declined as the interim ordinance seems to work and is good for another two years. Commenters stated that the proposed ordinance does not meet the requirements spelled out by the Board and a Sewage Sludge Land Application Task Force in 2002. CNPS has been concerned that sludge might be dumped on rangeland or agricultural marginal lands, thus changing nutrient balances and habitat, so we will be keeping an eye on the issue.

Carbon recycling

The carbon recycling issue is at the core of global warming issues, and warming was made evident by the current blooming of Chorizanthe populations on serpentine in eastern Montana de Oro Park. I hope the pollinators will be around to do their work.

David Chipping, Professor of Geology (Emeritus), Cal Poly State University David Chipping was educated at Cambridge, England and Stanford, California. His doctoral thesis addressed the displacements of rocks along the San Andreas fault and the configuration of ocean basins in to which the rocks were deposited. He is active on the Board of the San Luis Obispo Chapter of the California Native Plant Society and has served as the statewide Conservation Director for that organization. David is currently leading a joint project between CNPS-SLO and Friends of the Carrizo Plain to develop a photographic collection of the entire flora within the Carrizo Plain Monument.

Fieldtrips and Workshops

Field Trips

With this rainy season getting off to a good start, the spring wild flowers should present a better show than in recent years. In planning for this possibility, I would ask CNPS members who have a favorite “plant place” they enjoy visiting during the months of February through May, to forward that information to me ( and we will do our best to create a series of field trips to those locations this year. Let’s commit ourselves to visit the wild places this season and enjoy their splendor!


During last December’s meeting on Bryophytes, presented by Dr. Benjamin Carter of San José State University, Ben gave a workshop describing a simplified version of the taxonomy Bryophytes (Mosses, Liverworts and Hornworts) to 25 participants. Those of us who attended the workshop were treated to several different Moss genera, along with a couple of Liverworts, and one Hornwort genus. Using both dissecting scopes and microscopes, we were able to distinguish critical differences of these minute plants. All of the species described can be found in San Luis Obispo Co. Make sure to attend the February workshop on Feb. 4th at 6:00 p.m. to be presented by Dr. David Keil.

Native Seed Workshop

During the third week of November, our chapter was treated to a California Native Seed Workshop, co-hosted by the SLO Botanical Gardens. Dr. Evan Meyer of Rancho Santa Ana Botanical Gardens, Claremont, CA give the four hour workshop, which included a slide presentation about the value of seed banks and how they operate, followed by a walk through our the garden to observe the arrangements of native plant seeding structures (panicles) and discuss the different shapes and constructions of each seed species.

Phytophthora Workshop

The December statewide CNPS Chapter Council meeting was held in the SF Bay Area. SLO members David Chipping and Bill Waycott attended the meeting during which the council deliberated and then approved the 2015 – 2020 CNPS Strategic Plan (a copy of which can be obtained by writing to In addition, a workshop directed at the nursery trade was presented on the fungus Phytophthora, which is being spread around the state in plant nursery stock. Three scientists presented their research data illustrating where these diseases first entered the state and how they have spread to ?? counties. The workshop ended with a fieldtrip to Acterra Native Plant Nursery, located in Los Altos Hills, where participants were shown the best management practices used by nurseries to prevent the introduction and spread of Phytophthora in their facilities.


Cucurbita palmata

Cucurbita palmata

Coyote melon

Bonnie’s drawing for this issue of Obispoensis is based on a picture sent to me by George Butterworth. The species, Cucurbita palmata, has many common names. The ones I found on the web include coyote melon, coyote gourd, desert gourd, palmate-leafed gourd, coyote ear, buffalo gourd, stinking melon, calabazilla, or chilicote.

Coyote melon is primarily a desert species that grows best where there are summer monsoons. Since we are a little north of the summer monsoon track coyote melon is relatively rare in our area. However, a few plants can be found in the eastern edge of our Chapter area (i.e., Carrizo Plain and the upper Cuyama Valley). It’s a species that prefers sandy, disturbed soils where vegetation is scarce such as desert washes and dry, rocky slopes.

The most common name around here, coyote melon, refers to its vegetative resemblance to the pumpkin, squash cucumber, melon, or gourd, family Cucurbitaceae. The Cucurbitaceae are non-woody (herbaceous) vines with tendrils and broad, palmate-veined leaves. Flowers in coyote melon are unisexual (staminate or pistilate). In coyote melon they are large and yellow and borne solitarily in the in the axils of leaves. Fruits in the family are extremely variable and are considered unique to the family. Often it is a kind of quite large berry botanists call a pepo. Pepos have fleshy, fibrous, or watery flesh inside and usually are enclosed by a clearly defined outer skin or rind. When totally mature, they often dry out to a hollow dry spheroid.

From the list of common names for the family, I suspect it would be easy to conclude that the family produces a fair number of edible and otherwise useful cultivated species. The main economic species produce edible, fleshy fruit today. But this has not always been true and is certainly NOT true of coyote melon and most other wild members of the family today. The flesh of coyote melon is extremely bitter and if one is tempted to try to eat it, it would act as an extreme emetic. That is, it would rapidly be expelled from both ends.

So what’s the link between inedible and/or poisonous wild cucurbits of today with the edible cucurbits listed above? It is best summed up by a quote from a November 20, 2015 paper by A’ndrea Elyse Messer titled “Loss of Mastodons Aided Domestication of Pumpkins, Squash.” I actually heard (or read) about the article around Thanksgiving and decided to look it up on the Web. The quote that caught my interest was: If Pleistocene megafauna – mastodons, mammoths, giant sloths and others – had not become extinct, humans might not be eating pumpkin pie and squash for the holidays, according to an international team of anthropologists.

The article indicates that most wild cucurbits are bitter and that smaller organisms (and humans) tend to avoid trying to eat the fruit. It then notes that large mammals, such as the mastodon, have fewer bitter taste buds in their mouths so eating cucurbits shouldn’t have been a problem. The authors note that they could deduce that the mastodons were eating cucurbits because when and wherever they examined fossil mastodon dung it contained cucurbit seeds. Since the only way cucurbit seeds could get into dung is by being eaten, they concluded cucurbits were an important food source for them. Being huge animals, mastodons had to migrate over wide distances so they also concluded mastodons were major dispersers of cucurbit seeds. The researchers also found that the DNA they recovered from the seeds in the dung was more similar to wild cucurbits of today than to cultivated edible ones. Therefore it’s logical that the ancestors of the edible cucurbits were bitter.

What killed off the mastodons? A recent book titled, The Sixth Extinction, gives a possible clue. It turns out that large animals live in a very tight balance with their environment and the regular sustained loss of even a few key animals would lead to extinction in a relatively short time (a few thousand years). Early humans coexisted with the last of the mastodons. Early human hunters probably preferred to kill the biggest and healthiest animals as hunters still do today. This would mean they would have taken the breeding animals of a family or herd. When a parent is killed, often the rest of their family dies as well. So even with very modest losses of a few key animals a year, the book indicates it would lead to a slow extinction in a few thousand years.

Mastodons and the other large mammals died out over ten thousand years ago. So why do we have edible cucurbits today? The article indicates that early peoples didn’t use fresh cucurbit fruits for food, but waited until they were dry and hollow and used them for containers, noise makers (rattles) and/or fish floats. Although some species’ seeds (e.g., coyote melon) are edible when totally mature, at least some of their seeds would have ended up in their disturbed, highly nitrogenous trash heaps. So people took over from the mastodons as major seed dispersers. So cucurbits would have been become common around early human settlements. Since a bitter compound is often poisonous in large uncontrolled amounts, but medicinal in small, regulated amounts, it can be assumed that early peoples used fleshy immature fruits as medicine. It doesn’t seem to me to be a great stretch to assume enough genetic variability in early cucurbits so that some would have been less bitter. These would be selectively utilized by early people, probably the wives and mothers.

By the time the mastodons were gone, early peoples would have been planting various cucurbits around their settlements. Once there, they would have been selected to be less and less bitter until we have the edible squash and pumpkins we enjoy today. So next Thanksgiving, remember to thank the mastodons and other large extinct mammals for your pumpkin pie. One final thought, pumpkins and squash were domesticated in the new world and in all likely hood the jack-o-lantern pumpkin was one of the few major crops domesticated within the lower 48 states. Personally, I find coyote melon to be best (and safely) enjoyed as we find it, growing in nature.

by Dirk Walters, illustrations by Bonnie Walters | Dirk and Bonnie Walters are long-time CNPS-SLO members, contributors, and board/committee participants. In addition to his work at Cal Poly, Dirk is the current CNPS-SLO Historian.
Hoover Award – 2015

Hoover Award – 2015

Dr. Neil Havlik was recognized with the 2015 Hoover Award for his contributions to appreciation and preservation of the San Luis Obispo native flora. The honor, named for Dr. Robert Hoover, was presented to an appreciative Neil Havlik at the annual Banquet on January 23. Prior recipients meet yearly to select an honoree judged for their accomplishments in education, conservation and chapter support.

Dr. Havlik served as San Luis Obispo City Natural Resources Manager from 1996 until his retirement in 2012. In that role, he oversaw the creation of the city greenbelt. He was instrumental in the acquisition of key parcels, protection of other private parcels, the expansion of the greenbelt trail systems, and was the guiding force behind the joint publication
(with our chapter) of the immensely popular Wildflowers of San Luis Obispo guidebook. His role in protecting Chorro Creek bog thistle populations within the greenbelt led to a 2015 special award from the US Fish and Wildlife Service.

Neil majored in Biology at Cal Poly San Luis Obispo, graduating cum laude in June 1968. At our banquet, Dr. Havlik recounted how honored he was to have studied under the late Robert Hoover. He then attended the graduate program in Botany at UC Santa Barbara from January 1969 to June 1971, earning a Master of Science degree in Botany. In 1978, Neil went back to school, seeking a Doctorate in the interdisciplinary Wildland Resource Science program at UC Berkeley. He earned his doctorate in that field in June 1984.

Havlik held a variety of positions with the East Bay Regional Park District in Oakland for fifteen years, involved in land use planning, environmental impact analysis and mitigation, natural resource management, property management, and land acquisition. In 1987 he became the first Executive Director for a non-profit land trust headquartered in Fairfield, California (Solano County in the lower Sacramento delta).

Since retirement, Dr. Havlik has contributed greatly to developing a local Carrizo Plains Conservancy initiative, a special purpose land trust targeted on bringing more property under protection in our Carrizo region. Neil Havlik also serves on the board of the Coastal San Luis Resources Conservation District. The RCD projects play an essential role in furthering preservation of our rural landscape, quietly enlisting landowners in vital protection projects.

Please share your appreciation of the Neil’s wonderful contributions to our county and its flowers.

CNPS-SLO Banquet 2016

CNPS-SLO Banquet 2016

California Native Plant Society –

San Luis Obispo Chapter

Annual Potluck Banquet

Saturday, January 23, 2016

5:30-9:30 pm

$10 per person, plus a pot luck item for the dinner

Morro Bay Community Center

1001 Kennedy Way, Morro Bay

Social Hour – 5:30 pm

Buffet Style Potluck Dinner – 6:30 pm

Chapter business – 7:30 pm

Program: “Native Plants and Bees, and Beyond” – 8:00 pm

Program: Dr. Gordon Frankie

Our banquet speaker this year will be Dr. Gordon Frankie, Professor and Research Entomologist at the University of California, Berkeley.  He’s co-author of California Bees and Blooms (  The book will be available for purchase and signing at the banquet.

Tickets are $10 per person – You may reserve your spot with credit card or PayPal by clicking the Tickets button, or if you prefer, you may send payment to D. Krause, 2706 Newton Drive, Cambria, CA, 93428. Questions? Contact David Krause  at or 805-927-5182 Tickets

Potluck suggestions: CNPS will be providing the beer, wine, coffee, tea, and assorted beverages included with the cost of the banquet. Plates, glasses, cups, and napkins will be available; we ask that you bring your own eating utensils, although plastic utensils will be available.

For the dinner potluck, we are asking those with last names beginning with the following letters to bring the suggested item (and serving utensils). However, if you have a dish you especially want to share with the group, please feel free to bring it or contact Lauren (805-460-6329, for alternative suggestions.

A to H: salad (with dressing) or side dish
I to Q: dessert
R to Z: main meat or veggie dish

Please put your name on a label or piece of tape on your serving items so they can be returned to you.

Driving Directions: Exit Hwy 1 at Morro Bay Boulevard. At the “roundabout” turn right onto Quintana Road, and left onto Kennedy Way (after Albertson’s). Go ½ block. Community Center is on the right.

If you have any questions, please contact Lauren at, or 805-460-6329.

Hope to see you there!


Tour the gardens at Leaning Pine Arboretum

Tour the gardens at Leaning Pine Arboretum


The gardens at Leaning Pine Arboretum focus primarily on the world’s five Mediterranean climate regions: Australia, California, Chile, the Mediterranean basin, and South Africa. Additionally, there is an Entry garden, a New Zealand garden, a Dwarf and Unusual Conifer garden, a Formal garden, a Primitive garden, and a Palm and Aloe garden. Featuring a varied assortment of trees, shrubs, and other landscape plants, each garden is unique while continuing the cohesive experience of the entire arboretum.

The California garden is designed to resemble many of the natural plant communities found throughout California. Here, you may walk through a lush redwood grove, view a grass meadow, or overlook a restoration bank that demonstrates the strength and adaptability of our state’s native flora. The Ceanothus collection produces a must see show of blue flowers in the spring, while some of the other collections include Agave, Arctostaphylos, Quercus, and Salvia.

Tour the gardens at Leaning Pine Arboretum with Bill Waycott, Saturday, January 9, 2016, 9:00 am.



Bryophyte Workshop

Bryophyte Workshop

Bryophyte Workshop

The CNPS monthly meeting Thursday, December 3 at the San Luis Obispo Veterans Hall will kick off with a workshop from 6:10 to 7:00 pm on bryophyte identification led by Dr. Ben Carter.

Our county is very rich in these often-overlooked little plants, and this will be a chance for you to learn their distinctive features. Ben plans to cover differences among mosses, liverworts, and hornworts, important characters of their gametophytes and sporophytes, and provide field characters for identifying several of the most commonly encountered genera in SLO County. We’ll have a few microscopes, but bring your hand lenses!

View this event on our Event Calendar

Image By Bob Blaylock (Own work) [CC BY-SA 4.0], via Wikimedia Commons


Plant Update for the Dune Mother’s Wildflower Guide

Errata and Jespon updates

For those of you who own our chapter published book, Dune Mother’s Wildflower Guide, you will want an Errata and New Nomenclature Conforming to the 2nd edition of The Jepson Manual.

Our excellent botanist member, Lauren Brown, took time this past summer to do this information update.

You can download the Errata here, or email me and I will forward a copy to you.

– Linda Chipping

Errata and New Nomenclature Conforming to the 2nd edition of The Jepson Manual is also available for Wildflowers of the Carrizo Plain and Wildflowers of Highway 58.

Page 10 of 47« First...89101112...203040...Last »