Plant Guide to Nighthawk Loop Trail, Santa Rosa Plateau

Miles#id?Common NameLatin Name#here#all
0.00   Begin trail on east side of Sylvan Meadows Parking Area at opening in fence; elevation ~1870 feet (570 m)
0.00l  Sign: "Nighthawk Loop Trail 0.6 mi"
0.00b1ssp*foxtail barleyHordeum murinum20 / 2 
0.00b2 *soft chessBromus hordeaceus99 / 940
0.00l3spneedlegrassNassella sp. /  
0.00r4 *ripgut bromeBromus diandrus10 / 252
0.00b5 *slender wild oatsAvena barbata99 / 940
0.00l6~*knotweedPolygonum arenastrum5 / 119
0.00r7 *sand spurreySpergularia bocconei5 / 114
0.00r8 Engelmann oakQuercus engelmannii10 / 923
0.00r  Picnic Tables
0.00l9 rusty-haired popcorn flowerPlagiobothrys nothofulvus+ / 13
0.00l10~*short-fruited filareeErodium brachycarpum99 / 914
0.00l11 *narrowleaf filagoFilago gallica99 / 945
0.01   Y-Jct to begin the loop; go right
0.01r12sspfiddleneckAmsinckia menziesii50 / 5 
0.01r13 Spanish cloverLotus purshianus var. purshianus99 / 931
0.01r14 dove weedEremocarpus setigerus50 / 924
0.01b15 rattlesnake weedDaucus pusillus50 / 929
0.01r  (coast-range melic, Melica imperfecta)
0.01r16spbedstrawGalium sp.99 / 9 
0.01r17 checkerbloomSidalcea malviflora ssp. sparsifolia50 / 925
0.01r18 dwarf lupineLupinus bicolor10 / 329
0.02r19 purple clarkiaClarkia purpurea ssp. quadrivulnera99 / 926
0.02r20 *Australian bromeBromus arenarius99 / 93
0.02b21 Pomona locoweedAstragalus pomonensis20 / 911
0.02r22 *red bromeBromus madritensis ssp. rubens / 53
0.02r23 San Diego birdsfoot lotusLotus hamatus / 24
0.03l  (horseweed, Conyza canadensis)
0.03r24 Indian milkweedAsclepias eriocarpa30 / 918
0.04l  (telegraph weed, Heterotheca grandiflora)
0.04b25 *prickly sow thistleSonchus asper ssp. asper2 / 230
0.05r26 southern miner's lettuceClaytonia perfoliata ssp. mexicana99 / 925
0.07b27 *prickly lettuceLactuca serriola99 / 942
0.07b28 graceful tarplantHolocarpha virgata ssp. elongata99 / 914
0.08r29 *smooth cat's earHypochaeris glabra99 / 935
0.09b30 western ragweedAmbrosia psilostachya10 / 137
0.09r31 *sow thistleSonchus oleraceus / 42
0.10r32 *nit grassGastridium ventricosum / 25
0.10r33 toad rushJuncus bufonius var. bufonius10 / 114
0.10r34 clustered toad rushJuncus bufonius var. congestus10 / 17
0.10r35 *curly dockRumex crispus1 / 123
0.11l36 horseweedConyza canadensis1 / 136
0.11r  (poison oak, Toxicodendron diversilobum)
0.12r37 miner's lettuceClaytonia perfoliata ssp. perfoliata / 22
0.13r  (yellow salsify, Tragopogon dubius)
0.15r  nodding needlegrassNassella cernua+ / 17
0.16r  (leafy daisy, Erigeron foliosus var. foliosus)
0.17r  Vertical slabs of rock
0.19l38 sharp-toothed sanicleSanicula arguta / 16
0.20r39 *redstem filareeErodium cicutarium / 55
0.20r40 purple needlegrassNassella pulchra / 20
0.21b41 Palmer's goldenbushEricameria palmeri var. pachylepis10 / 310
0.22l42 California-asterLessingia filaginifolia var. filaginifolia20 / 751
0.23l43 California squirreltailElymus elymoides ssp. californicus / 9
0.24r44 long-stemmed buckwheatEriogonum elongatum var. elongatum20 / 328
0.24r  (California fuchsia, Epilobium canum ssp. canum)
0.24r  Jct. use connector trail to Motrero Trail
0.25l45 *shortpod mustardHirschfeldia incana20 / 551
0.25r  Jct. official connector trail to Motrero Trail; trail begins long curve to left
0.29r  Bench with back
0.29r46 California fuchsiaEpilobium canum ssp. canum5 / 121
0.29r47 lanceleaf dudleyaDudleya lanceolata5 / 120
0.29   Switchback left; near low point on trail, elevation 1840 feet (561 m)
0.33r48 purple sanicleSanicula bipinnatifida1 / 111
0.33r49 *California burcloverMedicago polymorpha5 / 140
0.33r50 *scarlet pimpernelAnagallis arvensis5 / 133
0.33l51 *goldentopLamarckia aurea5 / 122
0.36l52spstrigose lotus?Lotus strigosus? /  
0.39l53 *wild oatsAvena fatua5 / 126
0.40l54 *common chickweedStellaria media20 / 125
0.40l55 *hedge parsleyTorilis nodosa10 / 114
0.42l  Bench with back
0.43l56 silver puffsUropappus lindleyi1 / 126
0.44l57 blue wildryeElymus glaucus ssp. glaucus3 / 121
0.44l  (California peony, Paeonia californica)
0.46b58 *tocaloteCentaurea melitensis5 / 145
0.46r  (bird's-foot fern, Pellaea mucronata var. mucronata)
0.46r59 leafy daisyErigeron foliosus var. foliosus1 / 144
0.46b60 blue dicksDichelostemma capitatum ssp. capitatum / 46
0.47r61 branching phaceliaPhacelia ramosissima var. latifolia2 / 234
0.47l62 goldenrodSolidago californica5 / 135
0.47r  Bench with back; view of small waterfall in season in drainage straight ahead
0.48r  (California bee plant, Scrophularia californica ssp. floribunda; purple head, Acourtia microcephala; basketbush, Rhus trilobata)
0.50   Cross shallow drainage
0.51l  (fragrant everlasting, Gnaphalium canescens ssp. beneolens)
0.55   Jct. beginning of loop; end guide
0.56   Back at trailhead
http://tchester.org/srp/plants/guides/nighthawk.html
Updated 5 September 2005.