Plant Guide to Sylvan Meadows Road / Shivela / Stevenson Canyon / Fenceline Trails, Santa Rosa Plateau

Mile

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id?

Common Name

Latin Name

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Begin Sylvan Meadows Road on nw side of parking lot; elevation 1880 feet (573 m). Guide begins at gate. The first three off-trail species are best seen just before the gate.

0.00

r

 

 

(California buckwheat, Eriogonum fasciculatum var. foliolosum; Emory's baccharis, Baccharis emoryi; mule fat, Baccharis salicifolia)

0.00

l

 

 

(California peony, Paeonia californica)

0.00

b

1

 

*soft chess

Bromus hordeaceus

99 / 9

40

0.00

b

2

 

*wild oats

Avena fatua

99 / 9

26

0.00

b

3

 

*shortpod mustard

Hirschfeldia incana

99 / 9

51

0.00

r

4

 

California-aster

Lessingia filaginifolia var. filaginifolia

50 / 9

51

0.00

b

5

 

*foxtail barley

Hordeum murinum ssp. leporinum

50 / 3

15

0.00

l

6

 

Spanish clover

Lotus purshianus var. purshianus

99 / 9

31

0.00

l

7

 

*short-fruited filaree

Erodium brachycarpum

99 / 9

14

0.00

r

8

 

small-flowered fiddleneck

Amsinckia menziesii var. menziesii

50 / 9

8

0.00

b

9

 

*red brome

Bromus madritensis ssp. rubens

99 / 9

53

0.00

l

10

 

*ripgut brome

Bromus diandrus

99 / 9

52

0.00

b

11

 

*prickly lettuce

Lactuca serriola

99 / 9

42

0.00

l

12

 

rusty-haired popcorn flower

Plagiobothrys nothofulvus

99 / 9

13

0.00

l

13

 

*narrowleaf filago

Filago gallica

99 / 9

45

0.00

l

14

 

sharp-toothed sanicle

Sanicula arguta

20 / 9

16

0.00

r

15

 

vinegar weed

Trichostema lanceolatum

40 / 9

15

0.00

l

16

 

California poppy

Eschscholzia californica

10 / 2

29

0.00

l

17

 

checkerbloom

Sidalcea malviflora ssp. sparsifolia

99 / 9

25

0.00

l

18

 

graceful tarplant

Holocarpha virgata ssp. elongata

99 / 9

15

0.00

l

 

 

(splendid mariposa lily, Calochortus splendens)

0.00

l

19

 

purple needlegrass

Nassella pulchra

99 / 9

20

0.00

r

20

 

*knotweed

Polygonum arenastrum

30 / 9

21

0.00

r

21

 

*sand spurrey

Spergularia bocconei

/

14

0.00

l

22

 

coast-range melic

Melica imperfecta

50 / 9

43

0.00

r

23

 

*scarlet pimpernel

Anagallis arvensis

99 / 9

33

0.00

l

24

 

California fuchsia

Epilobium canum ssp. canum

20 / 4

21

0.00

l

25

 

*smooth cat's ear

Hypochaeris glabra

99 / 9

35

0.00

r

26

 

*windmill pink

Silene gallica

99 / 9

33

0.00

b

27

 

*redstem filaree

Erodium cicutarium

99 / 9

55

0.00

l

28

 

*California burclover

Medicago polymorpha

99 / 9

40

0.00

l

29

 

*hairy rattail fescue

Vulpia myuros var. hirsuta

99 / 9

19

0.00

l

30

 

common bedstraw

Galium aparine

99 / 7

38

0.00

l

31

 

low barley

Hordeum depressum

10 / 2

1

0.00

l

32

 

purple clarkia

Clarkia purpurea ssp. quadrivulnera

99 / 9

26

0.00

l

33

 

johnny jump-up

Viola pedunculata

99 / 9

16

0.00

r

34

 

Mexican rush

Juncus mexicanus

99 / 5

16

0.00

b

35

 

western ragweed

Ambrosia psilostachya

50 / 9

38

0.00

l

36

 

*Italian rye-grass

Lolium multiflorum

99 / 9

18

0.00

l

37

 

*rose clover

Trifolium hirtum

10 / 1

13

0.01

l

38

 

*smilo grass

Piptatherum miliaceum+

1 / 1

20

0.01

b

39

 

*cut-leaved geranium

Geranium dissectum

99 / 5

13

0.01

b

40

 

clustered field sedge

Carex praegracilis

99 / 5

5

0.01

c

41

 

toad rush

Juncus bufonius var. bufonius

99 / 9

14

0.01

l

42

 

*weak blue grass

Poa infirma

10 / 1

6

0.01

b

43

 

*curly dock

Rumex crispus

50 / 9

23

0.01

b

44

 

*grass poly

Lythrum hyssopifolia

99 / 9

15

0.01

l

45

 

*prickly sow thistle

Sonchus asper ssp. asper

20 / 9

30

0.01

l

46

 

wrinkled rush

Juncus rugulosus

20 / 3

13

0.01

r

47

 

*Bermuda grass

Cynodon dactylon

30 / 3

32

0.01

l

48

 

*whorled dock

Rumex conglomeratus

20 / 3

11

0.01

r

 

 

Check for saltgrass

0.01

l

49

 

common spikerush

Eleocharis macrostachya

99 / 5

12

0.01

 

 

 

Cross drainage, seasonally wet and very muddy

0.01

r

50

 

*common cudweed

Gnaphalium luteo-album

2 / 2

17

0.01

l

51

 

wire rush

Juncus balticus

10 / 1

2

0.01

l

52

 

*goldentop

Lamarckia aurea

30 / 5

22

0.01

l

53

 

*rabbits-foot grass

Polypogon monspeliensis

20 / 2

24

0.01

l

 

 

(Engelmann oak, Quercus engelmannii)

0.02

l

54

 

common fiddleneck

Amsinckia menziesii var. intermedia

30 / 9

15

0.03

l

55

 

San Diego birdsfoot lotus

Lotus hamatus

20 / 5

24

0.03

l

56

 

dove weed

Eremocarpus setigerus

10 / 3

25

0.03

l

 

 

Check for wild celery, Apiastrum angustifolium

0.03

l

57

 

rattlesnake weed

Daucus pusillus

/

29

0.04

l

58

 

dwarf lupine

Lupinus bicolor

99 / 9

29

0.05

l

59

 

Indian milkweed

Asclepias eriocarpa

30 / 9

18

0.05

l

60

 

tree clover

Trifolium ciliolatum

/

12

0.08

r

61

 

elk thistle

Cirsium scariosum

50 / 9

12

0.08

l

62

 

long-stemmed buckwheat

Eriogonum elongatum var. elongatum

50 / 9

28

0.08

l

63

 

Pomona locoweed

Astragalus pomonensis

30 / 9

11

0.09

l

 

 

Sign: "Trail closed"

0.10

r

64

 

*slender wild oats

Avena barbata

/

40

0.10

l

65

 

saltgrass

Distichlis spicata

50 / 3

16

0.11

l

66

 

deergrass

Muhlenbergia rigens

30 / 5

21

0.11

 

 

 

Cross drainage (check trees upstream for id, cottonwood or willows)

0.11

l

 

 

(willow-leaved dock, Rumex salicifolius var. denticulatus)

0.11

l

67

 

seaside heliotrope

Heliotropium curassavicum

10 / 1

10

0.11

l

 

 

(Vasey's prickly-pear, Opuntia vaseyi)

0.11

l

68

~

Carolina geranium

Geranium carolinianum

10 / 1

5

0.11

r

69

 

*hedge mustard

Sisymbrium officinale

99 / 5

20

0.11

 

70

 

*horehound

Marrubium vulgare

1 / 1

32

0.12

r

 

 

(Palmer's goldenbush, Ericameria palmeri var. pachylepis)

0.14

c

71

 

*pineapple weed

Chamomilla suaveolens

5 / 1

19

0.15

l

72

 

Engelmann oak

Quercus engelmannii

20 / 9

23

0.15

l

73

 

miner's lettuce

Claytonia perfoliata ssp. perfoliata

99 / 4

22

0.17

l

 

 

About 30 plants of the unusual purple clarkia, Clarkia purpurea ssp. quadrivulnera, variant without petals and with a very congested terminal inflorescence.

0.19

r

 

 

(mouse-ear chickweed, Cerastium glomeratum)

0.22

r

 

 

(western sycamore, Platanus racemosa; big leaf mistletoe, Phoradendron macrophyllum)

0.22

r

 

 

A dense field of long-stemmed buckwheat, Eriogonum elongatum var. elongatum

0.24

r

74

 

western sycamore

Platanus racemosa

3 / 3

27

0.24

r

75

 

chaparral yucca

Yucca whipplei

3 / 3

31

0.25

l

 

 

Jct. old road; Sign: "Authorized personnel only"

0.25

l

76

 

pin-point clover

Trifolium gracilentum var. gracilentum

/

8

0.25

l

77

 

chick lupine

Lupinus microcarpus var. microcarpus

50 / 9

9

0.25

l

78

 

silver puffs

Uropappus lindleyi

/

26

0.26

l

79

 

California lotus

Lotus wrangelianus

/

4

0.27

l

80

 

Palmer's goldenbush

Ericameria palmeri var. pachylepis

10 / 3

10

0.30

 

 

 

Cross drainage

0.30

b

81

 

*bull thistle

Cirsium vulgare

20 / 4

20

0.30

r

82

 

*milk thistle

Silybum marianum+

1 / 1

11

0.30

r

 

 

(weeded out gazania, Gazania X (mounding hybrid))

0.31

r

83

 

splendid mariposa lily

Calochortus splendens

50 / 9

20

0.39

l

84

 

variegated clover

Trifolium variegatum

/

5

0.39

l

85

 

balloon clover

Trifolium depauperatum var. truncatum

/

7

0.42

l

86

 

*annual blue grass

Poa annua

/

12

0.42

 

 

 

Cross drainage

0.42

l

87

 

clustered toad rush

Juncus bufonius var. congestus

20 / 1

9

0.44

l

88

 

owl's-clover

Castilleja densiflora

10 / 1

7

0.46

l

89

 

blue dicks

Dichelostemma capitatum ssp. capitatum

50 / 9

46

0.49

l

90

 

slender tarweed

Hemizonia fasciculata

99 / 9

18

0.60

l

 

 

Jct. Shivela Trail; go left on it; elevation 1920 feet (585 m). Sign: "Shivela Trail to Sierra Elena Road 1.2 mi (left); Sycamore Meadows Road to Visitor Center 1.4 mi (right)"

0.63

r

 

 

(yerba mansa, Anemopsis californica)

0.63

r

91

 

horseweed

Conyza canadensis

30 / 9

39

0.64

r

92

 

*nit grass

Gastridium ventricosum

99 / 9

26

0.64

r

 

 

(A field of rigid hedge-nettle, Stachys ajugoides var. rigida, in the drainage)

0.64

 

 

 

Long switchback left

0.67

r

93

 

soap plant

Chlorogalum pomeridianum var. pomeridianum

50 / 9

19

0.69

r

 

 

(chamise, Adenostoma fasciculatum)

0.71

r

 

 

(black sage, Salvia mellifera)

0.77

r

94

 

Gambel's dwarf milk-vetch

Astragalus gambelianus

10 / 1

4

0.77

r

95

 

*sow thistle

Sonchus oleraceus

3 / 1

42

0.78

r

96

 

leafy daisy

Erigeron foliosus var. foliosus

20 / 9

44

0.79

 

 

 

The bush lupine makes a fabulous display here when it is in full bloom:

0.79

r

97

 

bush lupine

Lupinus excubitus var. hallii

30 / 9

10

0.79

b

98

 

*tocalote

Centaurea melitensis

99 / 9

45

0.79

r

99

 

angel's gilia

Gilia angelensis

20 / 3

14

0.82

r

 

 

(coast live oak, Quercus agrifolia var. agrifolia)

0.82

l

100

 

black sage

Salvia mellifera

20 / 5

40

0.82

r

101

 

strigose lotus

Lotus strigosus

/

33

0.83

 

 

 

Cross drainage

0.86

r

102

 

California sagebrush

Artemisia californica

20 / 5

47

0.86

 

 

 

Cross small drainage and curve right

0.86

l

103

 

*hedge parsley

Torilis nodosa

99 / 9

14

0.87

l

104

 

stinking gourd

Cucurbita foetidissima

3 / 2

8

0.87

r

105

 

southern miner's lettuce

Claytonia perfoliata ssp. mexicana

30 / 3

27

0.87

r

106

 

coast live oak

Quercus agrifolia var. agrifolia

10 / 9

42

0.87

r

107

 

chaparral beard-tongue

Keckiella antirrhinoides var. antirrhinoides

2 / 2

10

0.88

 

 

 

Trail curves left

0.89

r

 

 

(purple head, Acourtia microcephala)

0.91

 

 

 

(closest California peony, Paeonia californica, so far)

0.91

r

108

 

tomcat clover

Trifolium willdenovii

/

17

0.94

r

 

 

(short-winged deerweed, Lotus scoparius var. brevialatus)

0.94

r

109

 

San Diego tarweed

Hemizonia paniculata

30 / 5

8

0.94

r

110

 

California buckwheat

Eriogonum fasciculatum var. foliolosum

20 / 5

51

0.94

 

 

 

Cross small wide drainage

0.95

r

111

 

popcorn flower

Cryptantha intermedia

10 / 1

27

0.95

r

112

 

red maids

Calandrinia ciliata

1 / 1

20

0.97

b

113

 

small-head field clover

Trifolium microcephalum

/

10

0.97

 

 

 

Leave last of grassland; enter solid chaparral

0.97

r

114

 

chamise

Adenostoma fasciculatum

50 / 9

37

0.97

r

115

 

*common chickweed

Stellaria media

10 / 1

27

0.98

r

116

 

wild-cucumber

Marah macrocarpus var. macrocarpus

10 / 4

44

0.98

r

117

 

hollyleaf redberry

Rhamnus ilicifolia

10 / 5

43

0.98

b

118

 

Pacific sanicle

Sanicula crassicaulis

40 / 9

20

0.98

r

119

 

purple everlasting

Gnaphalium purpureum

5 / 1

5

0.98

r

120

 

threadstem

Pterostegia drymarioides

20 / 5

30

0.99

r

 

 

Jct. Stevenson Canyon Trail; go right on it; elevation ~1960 feet (597 m).

0.99

l

 

 

Sign: "Shivela Trail (to left and to right); to Sylvan Meadows Road 0.4 mi (right); to Sierra Elena Road 0.8 mi (left): Stevenson Canyon Trail (forward); to Calle de Suenos Road 0.8 mi"

1.00

l

121

 

short-winged deerweed

Lotus scoparius var. brevialatus

20 / 9

23

1.00

l

122

 

Torrey's scrub oak

Quercus acutidens

5 / 2

26

1.00

l

123

 

poison oak

Toxicodendron diversilobum

30 / 9

43

1.01

r

124

 

foothill needlegrass

Nassella lepida

20 / 9

21

1.01

r

125

 

intermediate sun-cups

Camissonia intermedia

/

6

1.01

r

126

 

California filago

Filago californica

/

21

1.02

r

127

~

woolly-fruited lomatium

Lomatium dasycarpum ssp. dasycarpum

3 / 1

7

1.02

r

128

 

golden yarrow

Eriophyllum confertiflorum var. confertiflorum

20 / 7

55

1.02

r

129

 

prostrate spineflower

Chorizanthe procumbens

10 / 1

4

1.02

r

130

 

everlasting nest-straw

Stylocline gnaphaloides

/

12

1.02

r

131

 

climbing bedstraw

Galium nuttallii ssp. nuttallii

10 / 9

30

1.02

r

132

 

southern honeysuckle

Lonicera subspicata var. denudata

3 / 3

40

1.03

r

133

 

sapphire woolly-star

Eriastrum sapphirinum

50 / 3

7

1.04

r

134

 

white sage

Salvia apiana

5 / 5

38

1.04

l

135

 

saw-toothed goldenbush

Hazardia squarrosa var. grindelioides

10 / 3

35

1.04

 

 

 

Switchback left.

1.04

l

136

 

white-flowering currant

Ribes indecorum

8 / 5

23

1.04

r

 

~

(poison sanicle, Sanicula bipinnata)

1.04

r

137

~

seashore bentgrass

Agrostis pallens

10 / 1

12

1.04

r

138

 

goldenrod

Solidago californica

50 / 5

35

1.04

r

139

 

purple snapdragon

Antirrhinum nuttallianum ssp. nuttallianum

/

19

1.06

l

140

 

*crabgrass

Digitaria sanguinalis+

1 / 1

1

1.06

 

 

 

Cross drainage

1.06

b

141

 

*sourclover

Melilotus indicus

/

24

1.08

b

142

 

bristly bird's beak

Cordylanthus rigidus ssp. setigerus

30 / 5

28

1.08

 

 

 

Cross old fenceline

1.09

r

143

 

redberry

Rhamnus crocea

2 / 2

15

1.09

r

144

 

fragrant everlasting

Gnaphalium canescens ssp. beneolens

5 / 3

23

1.10

l

145

 

three spot

Osmadenia tenella

20 / 1

15

1.10

b

146

 

fringed spineflower

Chorizanthe fimbriata var. fimbriata

30 / 4

8

1.11

l

 

 

Jct. old lower end of alternate trail, now closed.

1.14

l

 

 

Jct. new lower end of alternate trail; stay right.

1.15

l

147

 

bush monkeyflower

Mimulus aurantiacus

10 / 9

42

1.20

r

148

~

*Mediterranean schismus

Schismus barbatus

20 / 2

22

1.22

l

149

 

prickly cryptantha

Cryptantha muricata

/

16

1.25

b

150

 

hooked skunkweed

Navarretia hamata ssp. hamata

99 / 7

11

1.28

r

151

 

canchalagua

Centaurium venustum

40 / 5

15

1.28

r

152

 

purple head

Acourtia microcephala

2 / 2

19

1.31

l

153

 

goldfields

Lasthenia californica

3 / 1

12

1.34

 

 

 

Local high point on trail

1.35

l

154

 

yellow pincushion

Chaenactis glabriuscula var. glabriuscula

3 / 1

13

1.36

l

 

 

(California chicory, Rafinesquia californica)

1.36

l

155

 

slender woolly marbles

Psilocarphus tenellus var. tenellus

10 / 1

5

1.36

l

156

 

common skullcap

Scutellaria tuberosa

10 / 1

4

1.36

l

157

 

*mouse-ear chickweed

Cerastium glomeratum

/

19

1.36

l

158

 

pygmy-weed

Crassula connata

10 / 1

28

1.36

l

159

 

*Italian thistle

Carduus pycnocephalus+

1 / 1

20

1.36

l

160

 

Tejon cryptantha

Cryptantha microstachys

/

6

1.36

 

 

 

Local low point on trail

1.36

l

161

 

California peony

Paeonia californica

5 / 2

17

1.36

l

162

 

blue wildrye

Elymus glaucus ssp. glaucus

30 / 9

21

1.36

r

163

 

canyon clarkia

Clarkia epilobioides

5 / 1

11

1.36

r

164

 

California chicory

Rafinesquia californica

1 / 1

22

1.36

r

165

 

snapdragon campion

Silene antirrhina

5 / 1

7

1.36

r

166

 

eucrypta

Eucrypta chrysanthemifolia var. chrysanthemifolia

5 / 1

25

1.37

b

167

 

laurel sumac

Malosma laurina

5 / 5

42

1.38

l

 

 

Jct. upper end of alternate trail; stay right

1.38

l

168

 

*little horseweed

Conyza bonariensis

1 / 1

23

1.38

r

169

 

toyon

Heteromeles arbutifolia

5 / 5

44

1.38

b

170

 

San Diego pea

Lathyrus vestitus var. alefeldii

10 / 3

21

1.38

r

171

 

slender madia

Madia gracilis

20 / 9

19

1.40

 

 

 

Trail turns left 90°

1.40

r

172

 

California everlasting

Gnaphalium californicum

20 / 9

43

1.40

r

173

 

narrowleaf bedstraw

Galium angustifolium ssp. angustifolium

3 / 3

50

1.40

b

174

 

grand mountain dandelion

Agoseris grandiflora

3 / 2

11

1.40

 

 

 

Fencepost and old fence

1.40

r

175

 

California chalk lettuce

Dudleya pulverulenta ssp. pulverulenta

5 / 1

10

1.40

r

176

 

goldback fern

Pentagramma triangularis ssp. triangularis

5 / 2

24

1.40

r

177

 

Bigelow's spike-moss

Selaginella bigelovii

2 / 2

19

1.40

r

178

 

bird's-foot fern

Pellaea mucronata var. mucronata

3 / 2

30

1.40

r

179

 

caterpillar phacelia

Phacelia cicutaria var. hispida

20 / 2

16

1.40

r

180

 

California four o'clock

Mirabilis californica

1 / 1

23

1.40

r

181

 

purple owl's clover

Castilleja exserta ssp. exserta

/

13

1.40

r

 

 

(wild canterbury bells, Phacelia minor)

1.40

r

182

 

gray sage

Salvia apiana X S. mellifera

1 / 1

5

1.42

r

183

 

coffee fern

Pellaea andromedifolia

2 / 2

22

1.43

 

 

 

Local high point on trail

1.43

r

184

 

wide-throated yellow monkeyflower

Mimulus brevipes

5 / 1

12

1.43

r

185

 

wild canterbury bells

Phacelia minor

2 / 1

21

1.43

r

186

 

mustang mint

Monardella lanceolata

10 / 1

7

1.43

r

187

 

Ramona clarkia

Clarkia similis

5 / 1

3

1.44

r

188

 

meadow-rue

Thalictrum fendleri var. polycarpum

50 / 5

6

1.44

l

189

 

California brome

Bromus carinatus var. carinatus

10 / 3

24

1.44

r

190

 

*tumble pigweed

Amaranthus albus+

1 / 1

14

1.44

r

191

 

witchgrass

Panicum capillare

5 / 1

3

1.44

 

 

 

Begin first of three Stevenson Canyon Stream crossings on wooden planks.

1.44

r

192

 

*Crete weed

Hedypnois cretica

2 / 1

20

1.44

l

 

 

The arroyo willows at each of the next 3 stream crossings are extremely old. Note their very thick trunks and height.

1.44

l

193

 

arroyo willow

Salix lasiolepis

20 / 2

35

1.44

r

194

 

willowherb

Epilobium ciliatum ssp. ciliatum

1 / 1

18

1.44

 

 

 

End first Stream crossing

1.44

b

 

 

Many green 6 inch to 1 foot high baby arroyo willow plants in July 2005, but most were dead in September 2005 and 2 were left on 3/27/06.

1.44

r

195

 

*green bentgrass

Agrostis viridis

5 / 1

4

1.46

 

 

 

Second Stevenson Canyon Stream crossing

1.46

r

196

 

mule fat

Baccharis salicifolia

2 / 2

39

1.49

r

197

 

slender sunflower

Helianthus gracilentus

1 / 1

14

1.49

 

 

 

Third Stevenson Canyon Stream crossing

1.49

l

198

 

sand spikerush

Eleocharis montevidensis

1 / 1

7

1.49

l

199

 

rigid hedge-nettle

Stachys ajugoides var. rigida

3 / 1

13

1.49

l

 

 

(sticky cinquefoil, Potentilla glandulosa ssp. glandulosa)

1.49

b

200

 

basketbush

Rhus trilobata

1 / 1

24

1.53

l

201

 

*English plantain

Plantago lanceolata

1 / 1

19

1.53

l

202

~

wild celery

Apiastrum angustifolium

5 / 1

13

1.53

l

203

 

heartleaf penstemon

Keckiella cordifolia

5 / 3

28

1.53

l

204

 

giant wild-rye

Leymus condensatus

5 / 5

27

1.54

l

 

 

Cross through open gate; sign: "Stephenson Canyon Trail (facing other direction)"; stake: "Santa Rosa Plateau Ecological Reserve Boundary".

1.55

 

 

 

Trail curves left 45°

1.55

r

205

 

*purple wild radish

Raphanus sativus

2 / 1

11

1.57

r

 

 

Sign: "Harold Davis Hill"

1.59

 

 

 

Large infestation of bull thistle, Cirsium vulgare

1.59

l

 

 

Sign: End Sylvan Meadows; Private Property Ahead"; elevation ~2200 feet (670 m). Turnaround here and descend the way you came.

1.80

r

 

 

Jct. upper end of alternate trail; take it to the right.

1.80

 

 

 

Fourth Stevenson Canyon Stream crossing

1.80

l

 

 

Check for different clover

 

r

206

 

coast jepsonia

Jepsonia parryi

30 / 3

15

1.82

l

 

 

(common monkeyflower, Mimulus guttatus)

1.84

r

207

 

slender vetch

Vicia hassei

/

6

1.84

l

208

~

poison sanicle

Sanicula bipinnata

99 / 9

2

1.85

l

209

 

sticky cinquefoil

Potentilla glandulosa ssp. glandulosa

1 / 1

17

1.86

l

210

 

long-leaved rush

Juncus macrophyllus

5 / 1

6

1.90

 

 

 

Fifth Stevenson Canyon Stream crossing

1.93

l

211

 

California oxalis

Oxalis albicans ssp. californica

1 / 1

4

1.95

l

212

 

Parish's purple nightshade

Solanum parishii

1 / 1

20

1.96

 

 

 

Cross first of two small side drainages

1.97

 

 

 

Cross second of two small side drainages

1.97

l

213

 

southern Indian pink

Silene laciniata ssp. major

2 / 1

20

2.00

l

214

 

triangular-fruit sedge

Carex triquetra

1 / 1

17

2.06

r

 

 

(An infestation of ~200 soap aloe, Aloe saponaria, was removed in 2005, that probably came from a single plant just 5-11 years earlier.)

2.07

 

 

 

T-jct. with main Stevenson Canyon Trail; go right on it.

2.22

 

 

 

T-jct. with Shivela Trail; go right on it; elevation ~1960 feet (597 m).

2.25

 

 

 

Large bridge; sixth Stevenson Canyon Stream crossing

2.25

l

215

 

willow-leaved dock

Rumex salicifolius var. denticulatus

1 / 1

9

2.26

r

216

 

Chinese houses

Collinsia heterophylla

/

12

2.27

r

217

sp

spurge

Euphorbia sp.

1 / 1

 

2.30

b

218

 

*darnel

Lolium temulentum

/

4

2.30

r

219

sp

vetch

Vicia villosa ssp. varia or V. sativa

/

 

2.32

 

 

 

Cross small drainage

2.32

r

220

 

blue larkspur

Delphinium parryi ssp. parryi

10 / 1

14

2.35

l

 

 

(A huge western sycamore with 5 big trunks)

2.35

 

 

 

Trail curves right 90°

2.45

 

 

 

Trail curves right and briefly goes uphill

2.47

 

 

 

Local high point on trail

2.48

 

 

 

Trail curves left

2.53

l

221

 

nodding needlegrass

Nassella cernua

/

18

 

 

 

 

Trail is close to Tenaja Road now; trail curves right

2.56

 

 

 

Local low point on trail

2.63

l

222

 

*Australian brome

Bromus arenarius

10 / 1

4

2.65

 

 

 

Cross seasonally-wet drainage

2.65

r

223

 

bicolored everlasting

Gnaphalium bicolor

1 / 1

34

2.69

l

 

 

Second patch of jepsonia

2.74

 

 

 

Local low point on trail

2.75

 

 

 

Local high point on trail; second common skullcap, Scutellaria tuberosa location

2.79

 

 

 

Local low point on trail

2.80

 

 

 

Local high point on trail

2.86

 

 

 

Cross seasonally-moist drainage and go uphill

2.90

 

 

 

Local high point on trail

2.92

 

 

 

Trail turns left 90° and crosses bridge over another drainage

2.92

b

224

 

common monkeyflower

Mimulus guttatus

10 / 1

15

3.02

 

 

 

End Shivela Trail at T-jct. with Sierra Elena Road. Go left; elevation ~1975 feet (600 m).

3.05

c

225

 

pit-seed goosefoot

Chenopodium berlandieri

3 / 2

8

3.06

 

 

 

Cross Tenaja Road

3.07

 

 

 

Jct. Fenceline Trail; go left

3.13

l

226

 

telegraph weed

Heterotheca grandiflora

10 / 5

37

3.18

b

 

 

*winter vetch

Vicia villosa ssp. varia+

50 / 3

19

3.23

r

 

 

(blue elderberry, Sambucus mexicana)

3.33

 

 

 

Cross small drainage from right

3.34

l

 

 

(Large patch of Italian thistle, Carduus pycnocephalus)

3.36

b

227

 

*spring vetch

Vicia sativa ssp. sativa

10 / 1

6

3.44

 

 

 

Begin short uphill on trail

3.48

 

 

 

Second of two closely-spaced local high points on trail

3.53

r

228

 

*Russian thistle

Salsola tragus

1 / 1

25

3.55

r

229

 

coyote bush

Baccharis pilularis

1 / 1

25

3.58

r

230

 

*yellow salsify

Tragopogon dubius+

1 / 1

13

3.62

l

231

 

*Harding grass

Phalaris aquatica

2 / 1

2

3.78

 

 

 

Cross wood-plank bridge at drainage

3.83

 

 

 

Pass through open gate; jct. Hidden Valley Parking Lot; cross Tenaja Road to return to trailhead

3.86

 

 

 

End guide back at Sylvan Meadows Parking Area

add 83 sisymbrium irio, 233 elymus elymoides californicus
http://tchester.org/srp/plants/guides/shivela.html
Updated 1 April 2006.