Flora of Foot and Walker Pass to Crime Canyon Area, Anza-Borrego Desert State Park
This is no longer the latest version of this flora. See Flora of Foot and Walker Pass to Smuggler Canyon Area for an updated version.
Introduction Fig. 1. Area of this flora. The black lines with the arrow tips outline the area searched for vouchers with coordinates. The dense blue diamonds show the route surveyed on 22 November 2014. The red solid line shows the route surveyed on 11 October 2013. Click on the map to get a larger version.
This list covers the area shown in Fig. 1, the northern parts of Blair Valley and Little Blair Valley and the hilly area to their north that includes Foot and Walker Pass, and the drainage to the east locally known as Crime Canyon.
This is an immature list, since we have never surveyed this area in prime time in a good year.
This list comes from:
- vouchers with coordinates inside the area of 33.02 to 33.05° N. latitude and -116.42 to -116.37° E. longitude obtained from a search on 23 November 2014 of the Consortium of California Herbaria.
One voucher, SD156685, of Xylorhiza orcuttii, from 1939 by "an unknown collector", was tossed as being incorrectly located. Although the locality of this voucher is Little Blair Valley, Xylorhiza orcuttii is only known from the badlands far to the east of Little Blair Valley.
Larry Hendrickson was by far the dominant collector, with 133 of the 292 accepted vouchers, 46%. No other collector had more than 22 vouchers. The 292 accepted vouchers were of 155 taxa.
The distribution of the vouchers is shown in Fig. 2.
Fig. 2. Cluster map of the vouchers with coordinates in this area, from the Consortium of California Herbaria.
- a field survey done on 11 October 2013, for monsoonal plants and to relocate the vouchered Abutilon palmeri, which was redetermined as Abutilon abutiloides by Jon Rebman in 2014. The survey was done by Tom Chester, James Dillane, Walt Fidler, and Ted Caragozian. The route was from the dry lake in Little Blair Valley to the hills to the north, including a loop in those hills. No effort was made to create a complete list or estimate abundances. A total of just 22 species were recorded on this trip.
- a field survey done on 22 November 2014, from just north of the dry lake in Blair Valley, through Foot and Walker Pass, through the similar pass on the east side of Peak 2867, and then east along the drainage from Crime Canyon to about halfway through Crime Canyon. This survey was done by Tom Chester, Keir Morse, Mike Crouse, and Adrienne Ballwey, with assistance from Keng-Lou James Hung and Bahram Kheradmand for the first part of that survey.
A total of 88 taxa were observed in this survey, six of which need further observations to be certain of their determinations.
Checklist for the Area The column #V gives the number of vouchers for each taxon from the Consortium, with a maximum value of 9.
One entry, Eriogonum trichopes, E. clavatum is indeterminate since the voucher determination of E. trichopes was made before the two subspecies of it were elevated to two species in the Jepson Manual Second Edition.
The column #Pl gives a rough estimate of the minimum number of plants that we saw in the 22 November 2014 survey, with a maximum value of 99 plants. The main intent of this column is to indicate the species for which we found very few plants.
Taxa without an entry in at least one of these columns were from the 11 October 2013 survey, or from observations in the Blair Valley Campground area.
Version for printing, without lines and other text on this page: html (6 pages) or pdf Clickbook booklet (2 double-sided pages). (See printing instructions for an explanation of these options)
This is no longer the latest version of this flora. See Flora of Foot and Walker Pass to Smuggler Canyon Area for an updated version.
Voucher data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/)
We thank Keng-Lou James Hung and Bahram Kheradmand for help with the 22 November 2014 survey.
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Copyright © 2014 by Tom Chester, Keir Morse, Mike Crouse, and Adrienne Ballwey.
Permission is freely granted to reproduce any or all of this page as long as credit is given to us at this source:
http://tchester.org/sd/plants/floras/foot_to_crime_area.html
Comments and feedback: Tom Chester
Last update: 23 November 2014