Welcome to Ceanothus ~ See, I Know This!

We are an association of professional, hobby, and student field botanists interested in educating each other to KEEP BOTANY ALIVE! Our desire is to create a supportive environment to learn botany identification skills from one another and to share our knowledge of plants and plant communities.

We meet regularly in northern California to practice keying out plants using The Jepson Manual and other plant identification resoures.

Our goals:
* To practice identifying plants;
* To use The Jepson Manual (Second Edition) and become more familiar with plant terminology;
* To share our knowledge and educate each other about plant taxonomy;
* To discuss and learn about our California plant communities; and
* To have fun!


If you are interested in learning more about our collaborative plant identification workshops, please send an email to Ceanothusfieldbot [at] gmail [dot] com.

Calendar (click on event for more information)

Workshop Plant Lists

Saturday, March 17, 2012

Plants keyed-out using TJM2 during our collaborative workshop at the UC Davis Center for Plant Diversity (Herbarium):

1. Aristolochia californica (Aristolochiaceae)
2. Encelia californica (Asteraceae)
3. Arctostaphylos crustacea ssp. crustacea (Ericaceae)
4. Ribes sanguineum var. glutinosum (Grossulariaceae)

Saturday, February 18, 2012

Plants keyed-out during our workshop at UC Davis:

1. Cercocarpus betuloides var. blancheae (Rosaceae)
2. Ribes viburnifolium (Grossulariaceae)
3. Dendromecon harfordii (Papaveraceae)
4. Prunus dulcis (Rosaceae)
5. Senecio vulgaris (Asteraceae)
6. Matricaria discoidea (Asteraceae)
7. Erigeron sp. (Asteraceae)

Saturday, January 21, 2012

During our workshop at the UC Davis herbarium/Center for Plant Diversity, we identified the following plants using the 2nd edition of The Jepson Manual:
1. Malva nicaensis (Malvaceae)
2. Trifolium incarnatum (Fabaceae)
3. Brassica rapa (Brassicaceae)
4. Erigeron bonariensis (Asteraceae)


Someone moved Conyza into Erigeron, which threw us for a loop!

Saturday, October 15, 2011

Plants identified during our workshop at the UC Davis Center for Plant Diversity. Thanks to all who attended!


1. Salix geyeriana (Salicaceae)
2. Salix ligulifolia (Salicaceae)
3. Salix lucida ssp. lasiandra (Salicaceae)
4. Aster chilensis (Asteraceae)
5. Lepidium campestre (Brassicaceae)

Saturday, September 17, 2011

Plants identified during our workshop at the UC Davis Center for Plant Diversity.


1. Sedum laxum (Crassulaceae)
2. Xanthium spinosum (Asteraceae)
3. Hemizonia congesta ssp. luzulifolia (Asteraceae)
4. Holocarpha virgata ssp. virgata (Asteraceae)
5. Cycloloma atriplicifolium (Chenopodiaceae)
6. Polycarpon tetraphyllum (Caryophyllaceae)

Saturday, August 20, 2011

Plants keyed out during our very productive workshop at the UCD Center for Plant Diversity:


1. Chamaesyce serpens
2. Chamaesyce ocellata ssp. ocellata
3. Chamaesyce serpyllifolia ssp. hirtula
4. Senecio triangularis
5. Lessingia nana
6. Platyanthera leucostachys
7. Hypericum formosum var. scouleri
8. Apocynum androsaemifolium

Tuesday, August 2, 2011

Some cool plants we keyed out during our workshop at the CNPS State Office in Sacramento:

1. Hoita macrostachya (Fabaceae)
2. Salix exigua (Salicaceae)
3. Quercus berberidifolia (Fagaceae)
4. Acroptilon repens (Asteraceae)

Saturday, July 16, 2011

Plants identified during our workshop at the UC Davis Center for Plant Diversity:


1. Brodiaea terrestris ssp. terrestris (Liliaceae)
2. Solidago canadensis ssp. elongata (Asteraceae)
3. Eryngium armatum (Apiaceae)
4. Lotus stipularis var. stipularis (Fabaceae)

Saturday, June 18, 2011

Plants we keyed-out during our workshop at the UCD Center for Plant Diversity:

1. Lupinus sp. (Fabaceae)
2. Aster sp. (Asteraceae)
3. Navarretia leucocephala ssp. leucocephala (Polemoniaceae)
4. Oenothera californica ssp. avita (Onagraceae)

Tuesday, June 7, 2011

Plants identified during our workshop at the CNPS State Office in Sacramento:


1. Aster chilensis
2. Aster lentus
3. Lomatium sp.
4. Lomatium sp.

(Lomatium are difficult to key out!!!)