Plant Trail Guide to Knickerbocker Canyon

Plant Trail Guide to Knickerbocker Canyon

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

Directions to trailhead: In Big Bear Lake City, take Knickerbocker Road south from its intersection with Village Drive or Big Bear Blvd (SR18) to the unmarked dirt road 2N08 on the left just past the parking lot for an Inn. The road has a small jog right immediately past 2N08, so if you are on that jog right, turn around and 2N08 will be more visible on the way back. Take 2N08 0.95 miles to the unmarked beginning of this trail on the right at a hairpin turn to the left on 2N08. Park in a 1 car space at the trailhead, or a several car space immediately beyond it on the left.
GPS Coordinates:
TOPO! GPS Data Format Deg NAD27 ElevFeet
2N08,34.23600,-116.90888,6885
TRLHD,34.22952,-116.90621,7320,
TRLEND,34.22578,-116.91219,7580,
TRLHD is the beginning of the Knickerbocker Trail.
TRLEND is the end of the Knickerbocker Trail.
2N08 is the beginning of 2N08 at its intersection with Knickerbocker Road.
Thomas Brothers Guide: San Bernardino County, #4811, lower left bottom of F2 for the 2N08 intersection with Knickerbocker Road; lower middle bottom of F3 for the trailhead. The trail is not shown on this map, nor is it shown on the USGS Topo Map.
Highlights of This Trail

The botanical highlights of this trail are:

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 79 trails in our database when this histogram was made; only this trail is in the Big Bear area, with three others in the San Bernardino Mountains. A number of "1" means the taxon has only been found on this trail among the trails in our database; numbers of "4" or smaller may indicate taxa found only in the San Bernardino Mountains.

Number of Trails
Containing A Taxon Number Of Taxa
On This Trail % of Taxa
On This Trail
1 7 8%
2 9 10%
3 15 16%
4 8 9%
5 12 13%

1-5 51 55%
6-10 18 19%
11-15 13 14%
16-20 4 4%
21-25 3 3%
26-30 2 2%
31-35 0 0%
36-40 1 1%
41-45 0 0%
46-50 1 1%
Total Taxa 93 100%

We found 3 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 do not have any number given in the #all column.
The taxa unique to this trail are:

Latin Name Common Name
Lupinus lepidus var. confertus clustered tidy-lupine
Kelloggia galioides breakfast bedstraw
Pyrola asarifolia ssp. asarifolia bog wintergreen
Glyceria elata tall mannagrass
Silene menziesii Menzies' campion
Elymus glaucus X E. stebbinsii hybrid wildrye
Carex occidentalis western sedge

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 Date Visit # # taxa # "?" # "sp" # "~" # "ssp"
7/27/2003 1 61 5 9 5 0
8/3/2003 2 62 6 5 5 0
8/5/2003 3 64 2 3 2 0
8/5/2003 3 81 2 5 3 0
5/1/2004 4 83 2 6 2 0
5/27/2004 5 93 0 12 1 1
9/18/2004 6 96 0 5 2 1

Entries for 8/5/2003 are given first for the same part of the trail as was covered in the two previous trips, and then for the entire trail, which was covered that day for the first time.
The Plant Guide

Version for printing, without lines and other text on this page (4 pages)

Mile S # id? Common Name Latin Name #here #all
0.00 Begin guide at the trailhead 0.95 miles after the beginning of the dirt road 2N08, heading south, at elevation 7320 feet (2230 m).
0.00 b 1 threadleaf common rabbitbrush Chrysothamnus nauseosus ssp. consimilis 20 / 2 4
0.00 b 2 pinegrove gayophytum Gayophytum oligospermum / 6
0.00 l 3 beaked penstemon Penstemon rostriflorus 50 / 9 11
0.00 b 4 Davidson's lotus Lotus nevadensis var. davidsonii 10 / 2 7
0.00 b 5 Martin's paintbrush Castilleja applegatei ssp. martinii 50 / 5 14
0.00 l 6 green-leaf manzanita Arctostaphylos patula 50 / 9 12
0.00 l 7 hoary-aster Machaeranthera canescens var. canescens 50 / 9 3
0.00 l 8 Parish's buckwheat Eriogonum parishii 10 / 2 3
0.00 l 9 Grinnell's beardtongue Penstemon grinnellii var. grinnellii 5 / 5 15
0.00 b 10 California needlegrass Achnatherum occidentale ssp. californicum 10 / 1 5
0.00 b 11 mountain whitethorn Ceanothus cordulatus 50 / 9 14
0.00 r 12 western wallflower Erysimum capitatum ssp. capitatum 99 / 9 16
0.00 r 13 blue elderberry Sambucus mexicana 2 / 2 39
0.01 r 14 Fendler's blue grass Poa fendleriana ssp. longiligula 99 / 9 3
0.01 r 15 San Bernardino rubber rabbitbrush Chrysothamnus nauseosus ssp. bernardinus 20 / 9 14
0.01 l 16 *intermediate wheatgrass Elytrigia intermedia ssp. intermedia 20 / 1 3
0.01 l 17 golden yarrow Eriophyllum confertiflorum var. confertiflorum 5 / 5 47
0.02 r 18 California black oak Quercus kelloggii 3 / 3 11
0.02 r 19 wild tarragon Artemisia dracunculus 20 / 2 21
0.02 b 20 Jeffrey pine Pinus jeffreyi 50 / 9 21
0.02 l 21 California squirreltail Elymus elymoides ssp. californicus 50 / 9 8
0.02 r 22 white fir Abies concolor 50 / 9 20
0.04 l 23 sticky cinquefoil Potentilla glandulosa ssp. reflexa 20 / 2 9
0.04 Cross a very small side drainage.
0.04 r 24 imbricate phacelia Phacelia imbricata ssp. patula 20 / 3 14
0.04 l 25 Fremont's goosefoot Chenopodium fremontii 50 / 5 10
0.06 l 26 southern mountain-monardella Monardella australis 30 / 5 6
0.06 l Check for Oxytheca parishii here
0.06 l 27 groundsmoke Gayophytum diffusum ssp. parviflorum / 11
0.06 l (purple nightshade, Solanum xanti)
0.06 l 28 spreading fleabane Erigeron divergens 10 / 1 3
0.07 29 goldenrod Solidago californica 5 / 1 27
0.07 r 30 Scouler's willow Salix scouleriana 3 / 3 4
0.08 r 31 pinewoods rock-cress Arabis holboellii var. pinetorum / 3
0.08 b 32 arroyo willow Salix lasiolepis 50 / 9 29
0.08 Cross side drainage; trail jags right.
0.08 b 33 brown sedge Carex subfusca 6 / 1 2
0.09 l 34 pine lousewort Pedicularis semibarbata 20 / 6 9
0.09 b 35 Ross' sedge Carex rossii 20 / 9 4
0.09 l 36 mountain pink currant Ribes nevadense 30 / 9 6
0.11 l 37 clustered tidy-lupine Lupinus lepidus var. confertus 3 / 1 1
0.12 l 38 *yellow salsify Tragopogon dubius⁺ 2 / 2 5
0.13 r Cross head of small drainage and soon begin to ascend.
0.13 r 39 fragile sheath sedge Carex fracta 5 / 2 6
0.14 b 40 ~ southern jewel-flower Streptanthus campestris 5 / 2 2
0.14 b 41 fireweed Epilobium angustifolium ssp. circumvagum 99 / 2 3
0.14 l 42 fir mistletoe Phoradendron pauciflorum / 10
0.16 l 43 forest sedge Carex multicaulis 5 / 2 2
0.16 b 44 bracken Pteridium aquilinum var. pubescens 30 / 9 8
0.16 r 45 incense-cedar Calocedrus decurrens 30 / 9 12
0.16 r 46 swamp sedge Carex senta 99 / 9 3
0.18 b 47 Parish's bedstraw Galium parishii 5 / 1 5
0.19 r 48 sp meadow-rue Thalictrum sp. /
0.23 l 49 breakfast bedstraw Kelloggia galioides 10 / 3 1
0.24 Cross first branch of the wet branch of the main drainage and soon enter wet meadow.
0.25 b 50 ranger's buttons Sphenosciadium capitellatum 10 / 2 4
0.25 b 51 little false-solomon's-seal Smilacina stellata 5 / 1 4
0.25 b 52 lemon lily Lilium parryi 10 / 1 3
0.25 l 53 giant red paintbrush Castilleja miniata ssp. miniata 5 / 1 5
0.25 b 54 Parish's lupine Lupinus latifolius var. parishii 25 / 2 3
0.25 l 55 cobwebby hedge-nettle Stachys albens 10 / 2 4
0.25 b 56 Richardson's geranium Geranium richardsonii 20 / 2 3
0.26 b 57 California corn lily Veratrum californicum var. californicum 10 / 1 2
0.26 l 58 Kentucky blue grass Poa pratensis ssp. agassizensis 5 / 1 4
0.26 l (western columbine, Aquilegia formosa)
0.26 r 59 bog wintergreen Pyrola asarifolia ssp. asarifolia 5 / 1 1
0.27 Cross second branch of the wet branch of the main drainage
0.27 b Check for different mint family species.
0.27 l 60 western columbine Aquilegia formosa 3 / 2 5
0.27 r 61 ssp willowherb Epilobium ciliatum ssp. ciliatum 3 / 1 16
0.27 r 62 *common dandelion Taraxacum officinale / 1 5
0.28 b 63 tall mannagrass Glyceria elata 5 / 1 1
0.28 l 64 interior rose Rosa woodsii var. ultramontana 10 / 3 5
0.28 l 65 blue wildrye Elymus glaucus ssp. glaucus⁺ 20 / 3 16
0.29 r 66 clustered field sedge Carex praegracilis⁺ / 3
0.29 l 67 winter cress Barbarea orthoceras 10 / 2 6
0.29 l 68 hairy wood rush Luzula comosa 4 / 1 2
0.29 l 69 sp common monkeyflower Mimulus guttatus 3 / 1 7
0.30 A fantastic field of fireweed, Epilobium angustifolium ssp. circumvagum.
0.31 l 70 yarrow Achillea millefolium 20 / 2 11
0.31 l Jct. path
r (Lemmon's willow, Salix lemmonii)
0.31 b 71 fringed brome Bromus ciliatus 5 / 1 3
0.34 l 72 sp tansy-mustard Descurainia sp. 10 / 2
r Check for Calyptridium monandrum here
73 Menzies' campion Silene menziesii 5 / 1 1
0.37 r 74 Letterman's needlegrass Achnatherum lettermanii 1 / 1 3
0.37 End wet meadow; trail is now mostly in drier forest.
0.40 l 75 bitter cherry Prunus emarginata 20 / 1 5
0.42 Cross small obscure drainage
0.43 r 76 sp Parish's snowberry Symphoricarpos rotundifolius var. parishii 2 / 2 10
0.46 Cross dry branch of main drainage.
0.47 Trail goes uphill more steeply now and curves left 90°.
0.49 Long switchback right.
0.50 l 77 pine cryptantha Cryptantha simulans 50 / 5 2
0.51 Local high point on trail
0.52 Local low point on trail
0.55 b 78 California brome Bromus carinatus var. carinatus 10 / 1 15
0.56 Local high point on trail
0.57 Local low point on trail
0.58 Local high point on trail
0.59 l 79 sulphur buckwheat Eriogonum umbellatum var. munzii 5 / 2 9
0.59 Local low point on trail
0.60 Switchback left.
0.60 l 80 Wright's buckwheat Eriogonum wrightii var. subscaposum 30 / 3 13
0.63 Local high point on trail
0.66 l Clumps of Letterman's needlegrass, Achnatherum lettermanii, looking quite different all alone than they did in the meadow.
0.66 Local low point on trail
0.67 l 81 ~ hybrid wildrye Elymus glaucus X E. stebbinsii⁺ 1 / 1 1
0.69 b 82 mountain mugwort Artemisia ludoviciana ssp. incompta 20 / 2 5
0.70 Cross dry drainage. Metal (pipeline?) access structure on right.
0.71 r 83 western sedge Carex occidentalis 5 / 1 1
0.71 l 84 Wheeler's common madia Madia elegans ssp. wheeleri 20 / 2 2
0.74 r 85 mountain sweet-cicely Osmorhiza chilensis 3 / 1 5
0.74 r 86 Rydberg's horkelia Horkelia rydbergii 5 / 1 3
0.74 l 87 Sierra juniper Juniperus occidentalis var. australis 1 / 1 2
0.77 l 88 sp Mojave goosefoot violet? Viola purpurea ssp. mohavensis? 5 / 1
0.81 Cross small drainage
0.81 b 89 *downy brome Bromus tectorum 50 / 1 21
0.81 90 San Gabriel beardtongue Penstemon labrosus 1 / 1 6
0.81 r 91 wild pepper-grass Lepidium virginicum var. pubescens 20 / 2 5
0.83 l Jct. trail.
0.84 l 92 mat muhly Muhlenbergia richardsonis 20 / 1 2
0.85 Trail turns right 90°
0.85 l 93 *desert crested wheatgrass Agropyron desertorum 3 / 1 4
0.87 b 94 Mojave linanthus Linanthus breviculus 20 / 1 5
0.87 b 95 purple-root cryptantha Cryptantha micrantha 20 / 1 7
0.89 r 96 *tumble-mustard Sisymbrium altissimum 3 / 1 8
0.90 Trail ends at road, elevation 7580 feet (2310 m).

Comments On Specific Species

Tragopogon dubius. We observed no color to the closed ligules on the first plant, but yellow ligules on the second plant much farther along the trail. Also, the SBM flora lists only this species in Tragopogon.
Elymus glaucus ssp. glaucus. The upper two leaf sheaths were glabrous, and the lower leaf sheaths were sparsely hairy, with only a very few hairs. Hence we called it as the ± glabrous ssp. glaucus, but there is clearly room for some debate as to which subspecies it is.
Carex praegracilis. These plants key clearly to this id, and everything fits with one major exception: nearly all the perigynia are entire on the edges of the body and the beak, not minutely serrulate. However, every other possible identification has much more major problems, and a careful search turned up a few perigynia with minutely serrulate edges. We have vouchered this species, TC449.
Elymus glaucus X E. stebbinsii. This single plant keys to Elymus glaucus, but is unlike any Elymus glaucus we have ever seen. In particular, the stem height is much taller, up to 15.5 dm, the inflorescence length is longer, 23 cm, and the internode distance in the inflorescence is an amazing 28 mm for the lower nodes. All of these characteristics can be explained if it is a hybrid with E. stebbinsii. We have left a "~" on the identification since we have no key to make absolutely sure that this is the identification, but it definitely seems more than 95% probable that it is.
We thank participants in a CNPS walk on 7/27/03 led by Lorrae Fuentes for helping to find a number of these species and for some of identifications.

Number of Trails Containing A Taxon	Number Of Taxa On This Trail	% of Taxa On This Trail
1	7	8%
2	9	10%
3	15	16%
4	8	9%
5	12	13%

1-5	51	55%
6-10	18	19%
11-15	13	14%
16-20	4	4%
21-25	3	3%
26-30	2	2%
31-35	0	0%
36-40	1	1%
41-45	0	0%
46-50	1	1%
Total Taxa	93	100%

Latin Name	Common Name
Lupinus lepidus var. confertus	clustered tidy-lupine
Kelloggia galioides	breakfast bedstraw
Pyrola asarifolia ssp. asarifolia	bog wintergreen
Glyceria elata	tall mannagrass
Silene menziesii	Menzies' campion
Elymus glaucus X E. stebbinsii	hybrid wildrye
Carex occidentalis	western sedge

Visit Date	Visit #	# taxa	# "?"	# "sp"	# "~"	# "ssp"
7/27/2003	1	61	5	9	5	0
8/3/2003	2	62	6	5	5	0
8/5/2003	3	64	2	3	2	0
8/5/2003	3	81	2	5	3	0
5/1/2004	4	83	2	6	2	0
5/27/2004	5	93	0	12	1	1
9/18/2004	6	96	0	5	2	1

Mile	S	#	id?	Common Name	Latin Name	#here	#all
0.00				Begin guide at the trailhead 0.95 miles after the beginning of the dirt road 2N08, heading south, at elevation 7320 feet (2230 m).
0.00	b	1		threadleaf common rabbitbrush	Chrysothamnus nauseosus ssp. consimilis	20 / 2	4
0.00	b	2		pinegrove gayophytum	Gayophytum oligospermum	/	6
0.00	l	3		beaked penstemon	Penstemon rostriflorus	50 / 9	11
0.00	b	4		Davidson's lotus	Lotus nevadensis var. davidsonii	10 / 2	7
0.00	b	5		Martin's paintbrush	Castilleja applegatei ssp. martinii	50 / 5	14
0.00	l	6		green-leaf manzanita	Arctostaphylos patula	50 / 9	12
0.00	l	7		hoary-aster	Machaeranthera canescens var. canescens	50 / 9	3
0.00	l	8		Parish's buckwheat	Eriogonum parishii	10 / 2	3
0.00	l	9		Grinnell's beardtongue	Penstemon grinnellii var. grinnellii	5 / 5	15
0.00	b	10		California needlegrass	Achnatherum occidentale ssp. californicum	10 / 1	5
0.00	b	11		mountain whitethorn	Ceanothus cordulatus	50 / 9	14
0.00	r	12		western wallflower	Erysimum capitatum ssp. capitatum	99 / 9	16
0.00	r	13		blue elderberry	Sambucus mexicana	2 / 2	39
0.01	r	14		Fendler's blue grass	Poa fendleriana ssp. longiligula	99 / 9	3
0.01	r	15		San Bernardino rubber rabbitbrush	Chrysothamnus nauseosus ssp. bernardinus	20 / 9	14
0.01	l	16		*intermediate wheatgrass	Elytrigia intermedia ssp. intermedia	20 / 1	3
0.01	l	17		golden yarrow	Eriophyllum confertiflorum var. confertiflorum	5 / 5	47
0.02	r	18		California black oak	Quercus kelloggii	3 / 3	11
0.02	r	19		wild tarragon	Artemisia dracunculus	20 / 2	21
0.02	b	20		Jeffrey pine	Pinus jeffreyi	50 / 9	21
0.02	l	21		California squirreltail	Elymus elymoides ssp. californicus	50 / 9	8
0.02	r	22		white fir	Abies concolor	50 / 9	20
0.04	l	23		sticky cinquefoil	Potentilla glandulosa ssp. reflexa	20 / 2	9
0.04				Cross a very small side drainage.
0.04	r	24		imbricate phacelia	Phacelia imbricata ssp. patula	20 / 3	14
0.04	l	25		Fremont's goosefoot	Chenopodium fremontii	50 / 5	10
0.06	l	26		southern mountain-monardella	Monardella australis	30 / 5	6
0.06	l			Check for Oxytheca parishii here
0.06	l	27		groundsmoke	Gayophytum diffusum ssp. parviflorum	/	11
0.06	l			(purple nightshade, Solanum xanti)
0.06	l	28		spreading fleabane	Erigeron divergens	10 / 1	3
0.07		29		goldenrod	Solidago californica	5 / 1	27
0.07	r	30		Scouler's willow	Salix scouleriana	3 / 3	4
0.08	r	31		pinewoods rock-cress	Arabis holboellii var. pinetorum	/	3
0.08	b	32		arroyo willow	Salix lasiolepis	50 / 9	29
0.08				Cross side drainage; trail jags right.
0.08	b	33		brown sedge	Carex subfusca	6 / 1	2
0.09	l	34		pine lousewort	Pedicularis semibarbata	20 / 6	9
0.09	b	35		Ross' sedge	Carex rossii	20 / 9	4
0.09	l	36		mountain pink currant	Ribes nevadense	30 / 9	6
0.11	l	37		clustered tidy-lupine	Lupinus lepidus var. confertus	3 / 1	1
0.12	l	38		*yellow salsify	Tragopogon dubius⁺	2 / 2	5
0.13	r			Cross head of small drainage and soon begin to ascend.
0.13	r	39		fragile sheath sedge	Carex fracta	5 / 2	6
0.14	b	40	~	southern jewel-flower	Streptanthus campestris	5 / 2	2
0.14	b	41		fireweed	Epilobium angustifolium ssp. circumvagum	99 / 2	3
0.14	l	42		fir mistletoe	Phoradendron pauciflorum	/	10
0.16	l	43		forest sedge	Carex multicaulis	5 / 2	2
0.16	b	44		bracken	Pteridium aquilinum var. pubescens	30 / 9	8
0.16	r	45		incense-cedar	Calocedrus decurrens	30 / 9	12
0.16	r	46		swamp sedge	Carex senta	99 / 9	3
0.18	b	47		Parish's bedstraw	Galium parishii	5 / 1	5
0.19	r	48	sp	meadow-rue	Thalictrum sp.	/
0.23	l	49		breakfast bedstraw	Kelloggia galioides	10 / 3	1
0.24				Cross first branch of the wet branch of the main drainage and soon enter wet meadow.
0.25	b	50		ranger's buttons	Sphenosciadium capitellatum	10 / 2	4
0.25	b	51		little false-solomon's-seal	Smilacina stellata	5 / 1	4
0.25	b	52		lemon lily	Lilium parryi	10 / 1	3
0.25	l	53		giant red paintbrush	Castilleja miniata ssp. miniata	5 / 1	5
0.25	b	54		Parish's lupine	Lupinus latifolius var. parishii	25 / 2	3
0.25	l	55		cobwebby hedge-nettle	Stachys albens	10 / 2	4
0.25	b	56		Richardson's geranium	Geranium richardsonii	20 / 2	3
0.26	b	57		California corn lily	Veratrum californicum var. californicum	10 / 1	2
0.26	l	58		Kentucky blue grass	Poa pratensis ssp. agassizensis	5 / 1	4
0.26	l			(western columbine, Aquilegia formosa)
0.26	r	59		bog wintergreen	Pyrola asarifolia ssp. asarifolia	5 / 1	1
0.27				Cross second branch of the wet branch of the main drainage
0.27	b			Check for different mint family species.
0.27	l	60		western columbine	Aquilegia formosa	3 / 2	5
0.27	r	61	ssp	willowherb	Epilobium ciliatum ssp. ciliatum	3 / 1	16
0.27	r	62		*common dandelion	Taraxacum officinale	/ 1	5
0.28	b	63		tall mannagrass	Glyceria elata	5 / 1	1
0.28	l	64		interior rose	Rosa woodsii var. ultramontana	10 / 3	5
0.28	l	65		blue wildrye	Elymus glaucus ssp. glaucus⁺	20 / 3	16
0.29	r	66		clustered field sedge	Carex praegracilis⁺	/	3
0.29	l	67		winter cress	Barbarea orthoceras	10 / 2	6
0.29	l	68		hairy wood rush	Luzula comosa	4 / 1	2
0.29	l	69	sp	common monkeyflower	Mimulus guttatus	3 / 1	7
0.30				A fantastic field of fireweed, Epilobium angustifolium ssp. circumvagum.
0.31	l	70		yarrow	Achillea millefolium	20 / 2	11
0.31	l			Jct. path
	r			(Lemmon's willow, Salix lemmonii)
0.31	b	71		fringed brome	Bromus ciliatus	5 / 1	3
0.34	l	72	sp	tansy-mustard	Descurainia sp.	10 / 2
	r			Check for Calyptridium monandrum here
		73		Menzies' campion	Silene menziesii	5 / 1	1
0.37	r	74		Letterman's needlegrass	Achnatherum lettermanii	1 / 1	3
0.37				End wet meadow; trail is now mostly in drier forest.
0.40	l	75		bitter cherry	Prunus emarginata	20 / 1	5
0.42				Cross small obscure drainage
0.43	r	76	sp	Parish's snowberry	Symphoricarpos rotundifolius var. parishii	2 / 2	10
0.46				Cross dry branch of main drainage.
0.47				Trail goes uphill more steeply now and curves left 90°.
0.49				Long switchback right.
0.50	l	77		pine cryptantha	Cryptantha simulans	50 / 5	2
0.51				Local high point on trail
0.52				Local low point on trail
0.55	b	78		California brome	Bromus carinatus var. carinatus	10 / 1	15
0.56				Local high point on trail
0.57				Local low point on trail
0.58				Local high point on trail
0.59	l	79		sulphur buckwheat	Eriogonum umbellatum var. munzii	5 / 2	9
0.59				Local low point on trail
0.60				Switchback left.
0.60	l	80		Wright's buckwheat	Eriogonum wrightii var. subscaposum	30 / 3	13
0.63				Local high point on trail
0.66	l			Clumps of Letterman's needlegrass, Achnatherum lettermanii, looking quite different all alone than they did in the meadow.
0.66				Local low point on trail
0.67	l	81	~	hybrid wildrye	Elymus glaucus X E. stebbinsii⁺	1 / 1	1
0.69	b	82		mountain mugwort	Artemisia ludoviciana ssp. incompta	20 / 2	5
0.70				Cross dry drainage. Metal (pipeline?) access structure on right.
0.71	r	83		western sedge	Carex occidentalis	5 / 1	1
0.71	l	84		Wheeler's common madia	Madia elegans ssp. wheeleri	20 / 2	2
0.74	r	85		mountain sweet-cicely	Osmorhiza chilensis	3 / 1	5
0.74	r	86		Rydberg's horkelia	Horkelia rydbergii	5 / 1	3
0.74	l	87		Sierra juniper	Juniperus occidentalis var. australis	1 / 1	2
0.77	l	88	sp	Mojave goosefoot violet?	Viola purpurea ssp. mohavensis?	5 / 1
0.81				Cross small drainage
0.81	b	89		*downy brome	Bromus tectorum	50 / 1	21
0.81		90		San Gabriel beardtongue	Penstemon labrosus	1 / 1	6
0.81	r	91		wild pepper-grass	Lepidium virginicum var. pubescens	20 / 2	5
0.83	l			Jct. trail.
0.84	l	92		mat muhly	Muhlenbergia richardsonis	20 / 1	2
0.85				Trail turns right 90°
0.85	l	93		*desert crested wheatgrass	Agropyron desertorum	3 / 1	4
0.87	b	94		Mojave linanthus	Linanthus breviculus	20 / 1	5
0.87	b	95		purple-root cryptantha	Cryptantha micrantha	20 / 1	7
0.89	r	96		*tumble-mustard	Sisymbrium altissimum	3 / 1	8
0.90				Trail ends at road, elevation 7580 feet (2310 m).

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Plants of Southern California: Trail Guides

Copyright © 2003-2004 by Tom Chester, Michael Charters and Jane Strong.
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/sb/plants/guides/knickerbocker_canyon.html
Comments and feedback: Tom Chester | Michael Charters | Jane Strong
Updated 21 September 2004.