CNPS Chapter-Based Rare Vegetation
Sampling/Mapping Workshop

Saddle Creek North, Orange County  
June 8-9, 2013

The CNPS Vegetation Program is conducting a field-based sampling/mapping workshop in Orange County at the Saddle Creek North property, which is managed by the Conservation Fund. This property is located near the intersection of Santiago Canyon Road and Live Oak Canyon Road (near “Cook’s Corner”).

Orange County is home to nearly 1,500 native and naturalized plants and is recognized as one of the most diverse botanical regions in North America. In spite of the county being home to over three million people, much of our open spaces are still well preserved and deserving of plant exploration.

The resources below will help you understand and unjoy our local native plants.

Local Floras and Plant Lists

Biota of the Santa Ana Mts, 1952, W. Pequegnat

Identification and Distribution Resources

Other Native Plant Information

Field-Based Rare Vegetation Sampling / Mapping Workshop
Irvine Ranch Conservancy, Southeastern Orange County
Saturday, April 30, 2011; 8:30 am to 5 pm

The CNPS Vegetation Program is conducting a field-based rare vegetation sampling/mapping workshop on Saturday, April 30, 2011 in southeastern Orange County.  The workshop is being held to train CNPS chapter members in mapping rare vegetation types in the field using aerial photography.  This workshop will focus on techniques to identify and survey rare natural communities using our combined CNPS/DFG protocols. 

The workshop will be held from 8:30 am to 5:00 pm (gather at 8:15 am) on lands managed by the Irvine Ranch Conservancy.  The overall goals of the workshop are to learn about the diversity of alluvial scrub vegetation, to highlight areas containing rare plant communities, and discuss opportunities for future surveys/mapping in priority areas.  The cost of the workshop is a suggested donation of $25 for CNPS members. The fee for non-members is $70, which includes one-year $45 CNPS membership.

For a PDF with details on the workshop click here.  

If you are able to attend, please RSVP no later than noon on Monday, April 25, 2011 so that we can ensure sufficient workshop materials.

Danielle Roach (, 916.889.4634)
Deborah Stout (, 916.801.4539)

Looking to learn about botany? Join Bob Allen as he teaches a series of Botany classes at the Fullerton Arboretum. Biologist Bob Allen has taught at Irvine Valley College, Santa Ana College, California State University, Fullerton, and Rancho Santa Ana Botanical Gardens. Bob is also an accomplished photographer and published author.

Full 3 part series: $60 college students w/ current id / $70 Fullerton Arboretum member / $85 non-member

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  • 8:30 a.m.-12:30 p.m., $20 college student w/current id / $25 Fullerton Arboretum member / $30 non-member
  • A class for plant lovers of all levels. Includes an overview of plant parts, functions, pollination, and ecology. We’ll examine fresh plant material to study parts. Photographs and illustrations will be used to present other topics. The class ends with a short walk in the garden to observe living plants.


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  • 8:30 a.m.-12:30 p.m., $20 college student w/current id / $25 Fullerton Arboretum member / $30 non-member
  • Study the characteristics Botanists use to classify, identify, and recognize major groups and families of plants. We’ll examine fresh plant material, preserved specimens, photographs, and published references to learn plant parts and functions. This class is a suggested prerequisite for the Plant Families Identification class.


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  • 8:30 a.m.-12:30 p.m., $20 college students w/current id / $25 Fullerton Arboretum member / $30 non-member
  • An amazing number of different plant families grow in southern California. In this class, Bob Allen will introduce you to some of those different plant families and help you to begin to develop the necessary skills to be able recognize their key characteristics. By using actual examples of various plants, participants will increase their understanding of the process of plant taxonomy. Some knowledge of botany or completion of Botany Kick- Start class is required.


Many of you have the new Jepson Manual and have had a chance to thumb through it.  You may have noticed that under the grasses (Poaceae), there have been quite a few changes since the first Jepson Manual was published in 1993. If splitting became the theme of the Asteraceae, the Poaceae went the opposite way, with re-unification of traditional genera the main theme.  Three genera especially stand out, Stipa, Elymus, and Festuca. Achnatherum and Nasella, the needlegrasses, are once again StipaPiptatherum (rice grass) is tossed in for good measure.   Leymus is once again folded back into Elymus (wild rye). Not only was the annual genus Vulpia returned to Festuca (fescues) as subgenus, so were plants we’ve long known under the genus Lolium.

For those of you that are interested and not sure you really want to go to the trouble of figuring out what happened to your favorite Orange County grass, I’ve summarized the changes for you below.     [ Click here for a PDF version of this document ]

Vascular Plants of Orange County, an Annotated Checklist (Roberts 2008) already reflects many of these changes.


Achnatherum coronatum (Thurb.) Barkworth =Stipa coronata Thurb.

Agrostis viridis Gouan = Polypogon viridis (Gouan) Breister

Alopecurus pratensis L. NEW ADDITION TO S. CALIF. FLORA. Previously known from farther north.

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