Plant Guide to Iron Mountain Trail, Poway

This is a working list, about which we make no guarantees at all until we officially release it. Use at your own risk!

Introduction and Explanation of Plant Trail Guides

Highlights of This Trail
Fieldwork Dates and Summary of List Changes With Time
The Plant Guide
Comments On Specific Species


This guide begins at the Highway 67 trailhead, immediately south of Poway Road (not the Ellie Lane Trailhead to the north). Using this route, this hike is 6.2 miles roundtrip with ~1100 feet of elevation gain and loss. See Schad, 1998, pp. 79-81 for a map and description of this trail.

This guide was made from a single field trip, and has not yet been field-verified. Most mileages have not yet been added, but there are enough mileages and landmarks so that most people should be able to follow the guide.

See also Plants of Iron Mountain. This guide has an additional 27 species not found in that flora.

Highlights of This Trail

Number of Unique Taxa On This Trail

The following histogram gives the number of trails in our database that contain each taxon on this trail. We had 102 trails in my database when this histogram was made; 3 of those trails, including this one, are at the Blue Sky Ecological Reserve, Lake Poway and Iron Mountain Area. A number of "1" means the taxon has only been found on this trail among the trails in my database; numbers of "3" or smaller may indicate taxa found only in this area.

Number of Trails
Containing A Taxon
Number Of Taxa
On This Trail
% of Taxa
On This Trail
Total Taxa100%

We found xx additional species not in the above table, since they have not been identified yet. The unidentified ones are marked with ? or sp in the id? column in the guide, and have no entries in the #all column.

Fieldwork Dates and Summary of List Changes With Time

The following table gives the dates the trail was walked and taxa recorded. After each visit, the table gives the total number of taxa on the list and the breakdown of the taxa without positive identification. See Explanation of Plant Trail Guides to understand the symbols below.

Visit DateVisit ## taxa# "?"# "sp"# "~"# "ssp"

The Plant Guide

Version for printing, without lines and other text on this page: html (8 pages) or pdf Clickbook booklet (2 double-sided page). (See printing instructions for an explanation of these options)

MileS#id?Common NameLatin Name#here#all
0.00   Begin trail at SR67 entrance just south of Poway Road
0.00b1 *shortpod mustardHirschfeldia incana99 / 9 
0.00b2 *foxtail barleyHordeum murinum5 / 1 
0.00b3 dove weedEremocarpus setigerus30 / 5 
0.00r4 western ragweedAmbrosia psilostachya5 / 1 
0.00b5 *long-beaked filareeErodium botrys99 / 9 
0.00r6 *smooth cat's earHypochaeris glabra99 / 9 
0.00r7 *prickly sow thistleSonchus asper ssp. asper10 / 9 
0.00r8 *sow thistleSonchus oleraceus10 / 9 
0.00r9 *Italian thistleCarduus pycnocephalus1 / 1 
0.00r10~horseweedConyza canadensis1 / 1 
0.00b11 *Russian thistleSalsola tragus5 / 2 
0.00r12 *annual blue grassPoa annua2 / 1 
0.00b13 *soft chessBromus hordeaceus20 / 5 
0.00b14 *red bromeBromus madritensis ssp. rubens50 / 9 
0.00r15spannual everlastingGnaphalium sp.5 / 1 
0.00r16 *scarlet pimpernelAnagallis arvensis10 / 5 
0.00b17 California sagebrushArtemisia californica10 / 5 
0.00b  (California buckwheat, Eriogonum fasciculatum var. foliolosum)
0.00b18 San Diego birdsfoot lotusLotus hamatus5 / 2 
0.00b  (curly dock, Rumex crispus; Spanish clover, Lotus purshianus var. purshianus)
0.00r19~*wall bedstrawGalium parisiense10 / 1 
0.00b20 *tocaloteCentaurea melitensis99 / 9 
0.00b21 *redstem filareeErodium cicutarium99 / 9 
0.00r22 *California burcloverMedicago polymorpha50 / 9 
0.00r23 *horehoundMarrubium vulgare10 / 5 
0.00r24 *ripgut bromeBromus diandrus20 / 5 
0.00l25 *Crete weedHedypnois cretica50 / 9 
0.00l26 *cheeseweedMalva parviflora3 / 1 
0.00l27 *white-stemmed filareeErodium moschatum20 / 5 
0.00l28 *sourcloverMelilotus indicus10 / 3 
0.00   Cross over culvert
0.00l29 *London rocketSisymbrium irio50 / 9 
0.00l30sspbig sagebrushArtemisia tridentata2 / 1 
0.00l  (laurel sumac, Malosma laurina; chaparral bush mallow, Malacothamnus fasciculatus)
0.01r  Kiosk
0.01b31 coast live oakQuercus agrifolia var. agrifolia20 / 1 
0.01b32~*nettle-leaved goosefootChenopodium murale10 / 2 
0.02l33 narrow-leaf milkweedAsclepias fascicularis1 / 1 
0.02l  (planted pine, Pinus sp.; eucalyptus, Eucalyptus sp.; purple wild radish, Raphanus sativus)
0.02r34 sacred daturaDatura wrightii1 / 1 
0.03l35 rattlesnake weedChamaesyce albomarginata1 / 1 
 r36 planted pinePinus sp. /  
 l37 *purple wild radishRaphanus sativus5 / 2 
 l38 *prickly lettuceLactuca serriola1 / 1 
 l39 laurel sumacMalosma laurina10 / 3 
 l40 *winter vetchVicia villosa ssp. varia10 / 2 
 l41 California-asterLessingia filaginifolia var. filaginifolia5 / 2 
 l42 saw-toothed goldenbushHazardia squarrosa var. grindelioides30 / 9 
 r43 California buckwheatEriogonum fasciculatum var. foliolosum10 / 3 
 l44 deerweedLotus scoparius var. scoparius30 / 5 
 r45 broom baccharisBaccharis sarothroides10 / 3 
0.10r46 white sageSalvia apiana10 / 3 
 r47 bicolored everlastingGnaphalium bicolor3 / 3 
 l48 golden yarrowEriophyllum confertiflorum var. confertiflorum30 / 9 
 l49~chaparral bush mallowMalacothamnus fasciculatus10 / 5 
 r  (California four o'clock, Mirabilis californica)
 l  (fragrant everlasting, Gnaphalium canescens ssp. beneolens)
 l50~holly-leaf navarretiaNavarretia atractyloides1 / 1