Updates to

Lower Eaton Canyon, San Gabriel Mts Flora: A Checklist of the Vascular Plants by Bob Muns

This page lists the changes (updates and deletions) made or collected by Rick Fisher, Mickey Long, Jane Strong and Jane Strong / Tom Chester to The Lower Eaton Canyon Flora by Bob Muns (1984, 1989 and 1994). It also lists the vouchered observations contained in the Calflora database.

Updates Collected By Rick Fisher et al

These updates come from a printed undated flora authored by Rick Fisher and Mickey Long from ~2000(?). The updates are after the 1993 fire and after the planting in Eaton Canyon (the La Viña mitigation), and come from a variety of unnamed people, as well as from Rick and Mickey. Many of the species added were the result of a one-day botanical field day with Oscar Clarke, hosted by the San Gabriel Mountains chapter of the CNPS. Some of the 1994 updates that have been incorporated into Bob's list may also have come from this field day. Unfortunately, there are no records available to us to discriminate the source of those 1994 updates. Hence the list below only gives the updates collected by Rick that were not already present in Bob's 1994 update.

Refined Taxa

New TaxonPrevious Taxon On Muns List
Equisetum hyemale ssp. affine Equisetum hyemale
Commelina sp. (benghalensis?)Commelina sp.
Dudleya cymosa Dudleya sp.
Dudleya lanceolata Dudleya sp.
Chamaesyce albomarginata Chamaesyce sp.
Lotus argophyllusLotus sp.
Trifolium hirtum Trifolium sp.
Ribes aureum var gracillimumRibes aureum
*Eucalyptus camaldulensisEucalyptus sp.
Clematis lasianthaClematis sp.
Boykinia rotundifolia Boykinia sp.
Penstemon grinnellii ssp grinnelliiPenstemon grinnellii
Achnatherum coronatumAchnatherum sp.
Vulpia myurosVulpia sp.

We have updated Eucalyptus rostrata in Rick's list to its JM name of Eucalyptus camaldulensis.


Rick also has published a list of 25 species of Cultivated Plants of Eaton Canyon Nature Center.

Additions From Mickey Long's File Of
Interesting Plant Finds in Eaton Canyon

Additions From Jane Strong Found In The Canyon Area

Additions From Rick Fisher, Mickey Long et al, October 2002

These updates also come from a variety of people.

Additions From Jane Strong and Tom Chester Found In The Canyon Area

Eaton Canyon Vouchered Observations from the Calflora Database

We searched the Calflora Occurrence Database for all vouchers with the word Eaton in the location field. We selected only the records from that search that were clearly in lower Eaton Canyon below 1600 feet. All records without elevation are given below, since all of these taxa were present in one of the above sources.

Latin NameElevation (feet)DateLocation
Andropogon glomeratus var. pumilus September 3, 1917Eaton Canyon San Gabriel Mts. San Gabriel Mts., Eaton Canyon
Aster greatae September 1, 1916Eaton's Canyon, near Pasadena San Gabriel Mts., Eaton's Canyon
Boykinia rotundifolia1400June 22, 1941Eaton Cr, San Gabriel Mts
Brickellia nevinii750September 3, 1917Eaton Canyon, San Gabriel Mountains San Gabriel Mountains, Eaton Canyon
Clarkia epilobioides1400May 17, 1912Eaton's Canyon Mt. Wilson
Delphinium cardinale875June 11, 1947Eaton Wash Pasadena
Descurainia pinnata February 12, 1928Eaton Wash
Gnaphalium californicum875June 11, 1947Pasadena e of Eaton Wash
Hemizonia kelloggii700June 27, 1933Foothill Blvd at Eaton Wash Pasadena, Eaton Wash
Horkelia cuneata ssp. puberula1200April 5, 1919the mountains 1/4 mi below; Borders of Eaton Canyon San Gabriel Mts., Eaton Canyon
Lathyrus vestitus var. vestitus1400May 17, 1912Eaton Canyon Mt. Wilson
Lepidospartum squamatum May 1, 1903Eaton Canyon
Lessingia filaginifolia var. filaginifolia September 4, 1916Eaton Canyon San Gabriel Mts.
Lilium humboldtii var. ocellatum1500June 22, 1941by Eaton Canyon, San Gabriel Mts
Paeonia californica January 5, 1903Eaton Canyon Eaton Canyon Eaton Canyon
Pellaea mucronata var. mucronata January 1, 1903Eaton Canyon Eaton Canyon
Phacelia minor1400May 17, 1912Eaton's Canyon Mt. Wilson
Pteris vittata1200February 17, 1963Eaton Canyon ca. 2 mi from mouth; between 2nd. and 1st. falls San Gabriel Mts, Eaton Canyon
Ribes californicum var. hesperium January 1, 1903Eaton Canyon Eaton Canyon
Salvia apiana1400May 17, 1912Eaton's Canyon Eaton's Canyon Mt. Wilson
Tauschia arguta1400May 17, 1912Mt. Wilson Eaton's Canyon; Mt. Wilson Mt. Wilson, Eaton's Canyon

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Copyright © 2002-2003 by Jane Strong and Tom Chester
Permission is freely granted to reproduce any or all of this page as long as credit is given to us at this source:
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Last update: 20 April 2003