V. Lakes/Ponds/Dams

1. Caldwell Lake

Collection Date:
August 5, 2005

Location:
Los Angeles County
Map Quad: Valyermo
Lat: 34 deg. 24’ 51” N
Long: 117 deg. 46’ 37” W
Township: 4N
Range: 9W
Section: 24
Elevation: 5120-5135 ft. (1561-1566 m.)
Lake description:
Plant Communities: Aquatic & elements of Fresh Water Marsh, surrounded by Pinyon-Juniper Woodland & Joshua Tree Woodland
Man-made structures: A lot of grading has taken place around the lake area

Species List:

Dicotyledons:

Aizoaceae Fig-Marigold Family
Tetragonia tetragonioides (Pallas) Kuntze, New Zealand Spinach R, n.w lake margin

Amaranthaceae Amaranth Family
Amaranthus R, e. area

Boraginaceae Borage Family
Heliotropium curvassivicum L., Seaside or Salt Heliotrope R

Chenopodiaceae Goosefoot Family
Chenopodium sp. U

Lythraceae Loosestrife Family
Lythrum californicum Torr. & A. Gray, California Loose-strife R

Malvaceae Mallow Family
Malvella leprosa (Ort.) Drapov. Alkali Mallow, White Weed U, w. of lake in dry area

Polygonaceae Buckwheat Family
Eriogonum C
Rumex salicifolius J.A. Weinm. var. salicifolius, Willow Dock R, e. area

Ranunculaceae Buttercup Family
Ranunculus cymbelaria Pursh var. saximontanus Fern., Rocky Mountain buttercup, Alkali Buttercup R, e. area

Salicaceae Willow Family
Salix lasiolepis Benth., Arroyo Willow U, e. area

Monocotyledons:

Cyperaceae Sedge Family
Scirpus C, in lake

Juncaceae Rush Family
Juncus C, lake margin
Juncus R, lake margin

Poaceae Grass Family
Distichlis spicata (L.) Greene, Saltgrass U, w. of lake, dry area

Plants in order of abundance:


2. Glen Helen Regional Park Lake & Marsh

Collection Dates:
October 9, 1994
November 6, 2008

Location:
San Bernardino County, Devore, Glen Helen Regional Park
Map Quad: Devore
Lat: 34 deg. 12 ‘ 17 “
Long: 117 deg. 24 ‘ 16 “
Township: 1 N
Range: 5 W
Section: NW corner of sec. 4
Elevation: 2000 ft.
Lake description:
Two developed fishing lakes, separated by a stream, open to the public
Fresh-water Marsh description:
An Eagle Scout Project constructed an extensive board-walk through the willow grove marsh which was in place during the first survey of the area in 1994. The board-walk slowly deteriorated and has been mostly dismantled. In 2006-2007, some grading of the extreme north and south ends occurred. The grading has halted and a marsh-like vegetation complex has again emerged. There is currently no trail through the marsh. Because of the grading, moist-zone loving plants that tolerate or require high sun exposure are now thriving in the north and south ends of the marsh.
Plant Communities: Aquatic and Fresh-water Marsh

Species List:
* Collected on Nov. 6, 2008 - ID/verification pending

Dicotyledons:

Amaranthaceae Amaranth Family
*Amaranthus blitoides U, marsh margins in dry soil

Apiaceae Carrot Family
Berula erecta (Hudson) Cov., Cutleaf Waterparsnip FC
Hydrocotyle ranunculoides L.f., Floating Marshpennywort A, mostly along lake margins

Asteraceae Sunflower Family
*Ambrosia acanthocarpa Hook., Annual Bur-sage, Flatspine Bur Ragweed FC
*Ambrosia psilostachya DC., Western Ragweed, Cuman Ragweed C, marsh
Bidens laevis (L.) Britton, Sterns & Pogg., Bur-marigold, Smooth Beggartick R, lake margins
*Conyza sp. A
*Conyza canadensis (L.) Cronq., Canadian Horseweed U
Eclipta prostrata (L.) L., False Daisy FC
*Helianthus annua L., Annual Bluegrass NC U
*Lactuca serriola U
*Pseudognaphalium sp. U
Sonchus asper (L.) Hill, Prickly or Spiny Sow Thistle NC R
*Sonchus oleraceus L., Common Sow Thistle FC
*Taraxacum officinale Wigg., Common Dandelion FC

Brassicaceae Mustard Family
Nasturtium officinale W.T. Aiton, Water Cress NC FC, veg.
Hirschfeldia incana (L.) Lagr.-Fossat, Shortpod Mustard NC FC
Lobularia maritima (L.) Desv., Sweet Alyssum U

Caprifoliaceae Honeysuckle Family
Lonicera japonica Thumb., Japanese Honeysuckle U

Chenopodiaceae Goosefoot Family
*Chenopodium album L., Pigweed, Lambsquarters FC
*Chenopodium ambrosioides FC

Euphorbiaceae Spurge Family
*Croton californicus Mull. Arg., California Croton R, n. area of marsh

Fabaceae Pea Family
*Lotus sp. C, s. end of marsh, forming large mounds to 4 ft. high
*Melilotus indica (L.) All., Sourclover, Annual Yellow Sweetclover U
*Melilotus officinalis (L.) Lam., White Sweetclover C
*Vicia sp. R, n. area of marsh

Lamiaceae Mint Family
*Stachys albens A. Gray, Cobwebby Hedge-nettle, Whitestem Hedgenettle FC
Trichostoma lanceolatum Benth., Vinegarweed NC R

Onagraceae Evening Primrose Family
*Epilobium ciliatum Raf., Fringed Willowherb A
*Oenothera elata FC, marsh
Xanthium strumarium L., Rough Cocklebur NC C

Plantaginaceae Plantain Family
*Plantago lanceolata C
*Plantago major A

Polygonaceae Buckwheat Family
*Polygonum sp. FC
*Polygonum aviculare ? A

Primulaceae Primrose Family
*Anagalus arvensis U

Rosaceae Rose Family
Rubus ursinus Cham. & Schldl., California Blackberry NC C, marsh

Salicaceae Willow Family
Populus balsamifera var. trichocarpa NC U
Populus fremontii NC FC
Salix lasiolepis Benth., Arroyo Willow NC A

Scrophulariaceae Snapdragon Family
*Verbascum virgatum Stokes, Wand Mullein U
*Veronica anagalus-aquatica L., Water Speedwell C

Solanaceae Nightshade Family
*Solanum douglasii U

Tamaricaceae TamariskFamily
*Tamarix ramosissima Ledeb., Tamarisk R


Ulmaceae Elm Family
Ulmus pumila L., Siberian Elm U, many of these trees were removed during the recent grading, naturalized by ranchers before the park was opened

Urticaceae Nettle Family
Urtica dioica L. ssp. holosericia (Nutt.) Thorne, Hoary or Stinging Nettle C

Verbinaceae Vervain Family
*Verbina lasiostachys Link, Western Vervain U

Vitaceae Grape Family
Vitus girdiana Munson, Desert Wild Grape C

Monocotyledons:

Cyperaceae Sedge Family
Carex sp.
Carex schottii/barbarae (discrepancy - determination pending) FC
*Cyperus sp. R, far s. area
*Cyperus eragrostis Lam., Umbrella Sedge, Tall Flatsedge FC
Cyperus niger Ruiz Lopez & Pavon, Black Flatsedge C, mostly along lake margins
Eleocharis montevidensis/parishii (discrepancy - determination pending) C
*Schoenoplectus sp. R, marsh
Schoenoplectus acutus (Muhl. ex Bigelow) A. Love & D. Love var. occidentalis (S. Watson) S.G. Sm., (Common) Tule
Schoenoplectus americanus (Pers.) Volkart ex Schinz & R. Keller, American Tule, Chainmaker’s Bulrush U, s. margin of marsh
*Scirpus microcarpus R, n. end

Juncaceae Rush Family
Juncus sp. FC, marsh
*Juncus rugulosa Engelm., Wrinkled Rush R, marsh
*Juncus xiphyoides E. Meyer, Irisleaf Rush U, marsh

Poaceae Grass Family
*Cynodon dactylon(L.) Pers., Bermuda Grass C
*Echinocloa crus-galli (L.) P. Beauv., Barnyard Grass C
*Pennisetum clandestinum Chiov., Kikuyu Grass U, veg.
*Poa sp. R
*Poa annua L., Annual Bluegrass FC
Polypogon monspeliensis (L.) Desf., Annual Beard Grass or Rabbitsfoot Grass NC C
Schedonorus phoenix (Scop.) Holub, Tall Fescue R

Pontederiaceae Pickerel-weed Family
Eichhornia crassipes (C. Martius) Solms-Laubach, Common Water Hyacinth A, in 1994, in one small pond, s.w. of the lake, adjacent to the marsh
None could be found in 2008. The pond is now filled with Typha latifolia.

Typhaceae Cattail Family
Typha latifolia L., Broadleaf Cattail A, both in marsh & lakes

Additional plants recorded by other collectors:
None found.

Plants in order of abundance:
1. Typha latifolia
2. Salix lasiolepis
3. Polygonum aviculare
4. Epilobium ciliatum
5. Plantago major
6. Ambrosia psilostachya
7. Melilotus officinalis
8. Echinocloa crus-galli
9. Conyza sp.
10. Polypogon monspeliensis
11. Lotus sp.

3. Jackson Lake

Collection Dates:
June 19, 1997
September 6, 1997
October 16, 2008

Location:
Los Angeles County, south of and feeding into Mescal Creek, adj. & s. of hwy. 2
Map Quad: Mescal Creek
Lat: 34 deg. 23 ‘ 29 “ N
Long: 117 deg. 43 ‘ 26 “ W
Township: R N
Range: 8 W
Section:
Elevation: 6150 ft. (1875 m.)
Lake description:
San Andreas Fault Sag Pond
Plant communities: lake margins with some fresh-water marsh community with dark, well-developed soil, surrounded by montane coniferous

* Collected on Oct. 16, 2008 - verification pending
Species List:

Dicotyledons:

Amaranthaceae Amaranth Family
Amaranthus albus L., Prostrate Pigweed FC

Asteraceae Sunflower Family
*Ambrosia acanthicarpa Hook., Annual Bur-sage, Flatspine Bur Ragweed C
*Artemisia dracunculus L., Tarragon FC
*Euthamia occidentalis Nutt., Western Goldenrod or Goldentop, Western Flat-topped Goldenrod U, n. area
*Taraxacum officinale Wigg., Common Dandelion C, s. & w. lake margins

Brassicaceae Mustard Family
Barbarea orthoceras Ledeb., American Yellowrocket C, s. & w. lake margins
*Hirschfeldia incana (L.) Lagr.-Fossat, Shortpod Mustard U, s. area

Euphorbiaceae Spurge Family
Chamaesyce sp. C, s. area

Fabaceae Pea Family
*Melilotus officinalis (L.) Lam., White Sweetclover C
* Trifolium sp. C, s. area in grass
*Trifolium sp. FC, s. area, in grass
*Trifolium sp. U, s. area, in grass

Haloragaceae Water-Milfoil Family
Myriophyllum sp. C, floating in lake

Lamiaceae Mint Family
*Stachys albens A. Gray, Cobwebby Hedge-nettle, Whitestem Hedgenettle
U, s. area

Malvaceae Mallow Family
*Malva parviflora L., Little Mallow, Cheeseweed Mallow U, s. area

Onagraceae Evening Primrose Family
Epilobium ciliatum Raf., Fringed Willowherb FC

Platanaceae Plantain Family
Plantago major L., Common Plantain A

Polygonaceae Buckwheat Family
Oxytheca parishii Parry var. parishii, Parish’s Oxytheca R, 1 plant, dry soil at n.e. area of lake

Ranunculaceae Buttercup Family
Ranunculus cymbalaria Pursh var. saximontanus Fern. FC, w. & s. lake margins
*Clematus ligusticifolia Nutt., Virgin’s Bower, Yerba De Chiva, Western White Clematis
U, n. area

Rosaceae Rose Family
*Potentilla glandulosa Lindley, Sticky Cinquefoil U, s. area
Prunus virginiana L. var. demissa (Nutt.) Torrey, Western Choke-cherry FC, n. shoreline
*Rosa sp. C

Salicaceae Willow Family
*Populus fremontii S. Watson, Alamo or Fremont Cottonwood 1 tree, n. area
Salix sp. U

Scrophulariaceae Snapdragon Family
Limosella acaulis Sesse & Mocino, Owyhee Mudwort C, s. & w. areas
Mimulus cardinalis Benth., Scarlet Monkeyflower NC U, s.c. area

Urticaceae Nettle Family
*Urtica dioica L. ssp. holosericia (Nutt.) Thorne, Hoary or Stinging Nettle FC

Verbenaceae Vervain Family
*Verbena lasiostachys Link., Vervain A

Monocotyledons:

Cyperaceae Sedge Family
Carex sp. U, s.w. shoreline
Eleocharis acicularis (L.) Roemer & Schultes var. acicularis, Needle Spikerush U
Eleocharis macrostachya Britton, Pale Spikerush U
Eleocharis parishii Britton, Parish’s Spikerush U, mostly on s.e. shoreline
Schoenoplectis sp. C, mostly in n. area of lake

Juncaceae Rush Family
Juncus arcticus Willd. ssp. littoralis (Engelm.) Hulten, Wire Rush, Mountain Rush
A
*Juncus bufonius L, Toad Rush U, s. area


Poaceae Grass Family
*Elymus sp. FC
Poa annua L., Annual Bluegrass A
Poa praetensis L., Kentucky Bluegrass FC, mostly on w. shoreline
Polypogon monspeliensis (L.) Desf., Annual Beard Grass or Rabbitsfoot Grass
A, s.w. shoreline
Polypogon viridis (Gouan) Breistr., Green Bentgrass, Beardless Rabbitsfoot Grass
FC, mostly on w. shore

Potamogetanaceae Pondweed Family
Potamogeton sp. U, floating or anchored in lake
Potamogeton crispus L., Curly Pondweed A, floating or anchored in lake

Typhaceae Cattail Family
Typha angustifolia L., Narrowleaf Cattail R, bases anchored on lake bottom
Typha domingensis C, n.w area of lake, roots anchored on lake bottom
Typha latifolia NC A, roots anchored on lake bottom

Zannichelliaceae Horned Pondweed Family
Zannichellia palustris L., Horned Pondweed A, floating or anchored in lake

Additional plants recorded by other collectors:
1. Atriplex rosea
Grant D. Brown Nov. 7, 1949
R.F. Thorne Oct., 10, 1967 elev. 6125 ft. w. end of lake
2. Descurania sophia
F.F. Thorne July 10, 1969 elev. 6100 ft.
3. Equisetum laevigatum
L.C. Wheeler Aug. 27, 1946 elev. 6100 ft.
4. Potamogeton foliosus
L.C. Wheeler Aug. 28, 1946 elev. 6100 ft.
5. Potamogeton pectinatus
L.C. Wheeler Aug. 28, 1946 elev. 6100 ft.
6. Hordeum jubatum
R.F. Thorne July 10, 1969 elev. 6100 ft.
7. Hordeum murinum ssp. glaucum
R.F. Thorne, M.Z. Thorne July 10, 1969 elev. 6100 ft.
8. Hordeum murinum ssp. leporinum
R.F. Thorne June 29, 1972 WNW end of Jackson Lake
9. Juncus mexicanus
B.C. Templeton June 18, 1932
R.F. Thorne, John Dourley Oct. 10, 1967 elev. 6125 ft.
T. Shipman July 25, 1974 elev. 6000 ft.
10. Lotus procumbens var. procumbens
Tim Ross & Steve Boyd June 18, 1990
11. Sonchus asper ssp. asper
R.F. Thorne, J. Dourley Oct. 10, 1967 elev. 6125 ft


Plants in order of abundance:
1. Poa annua
2. Juncus arcticus ssp. littoralis
3. Eleocharis acicularis ? small
4. Typha latifolia
5. Typha domingensis
6. Poa sp.
7. Eleocharis machrostachya ? tall
8. Trifolium sp. small flower
9. Plantago major
10. Verbena lasiostachys


4. Lost Lake

Collection Dates:
October 19, 1991
November 2, 1991
June 25, 1992
October 19, 1994
August 12, 1996
October 23, 2008
September 3, 2009

Location:
San Bernardino County, Lone Pine Canyon, ca. 150 m. north of Swarthout Cnyn. Rd.
Map Quad: Cajon
Lat: 34 deg. 16 ‘ 22 “
Long: 117 deg. 27 ‘ 51 “
Township: 2 N
Range: 6 W
Section: 12, NE/4 of SW/4
Elevation: 2790 ft.
Lake description:
San Andreas Fault Sag Pond
Plant communities: lake surrounded by chaparral, coastal sage scrub
Note: Mr. Clyde stated that the lake was dry during 19--

*Species not yet verified/det.


Species List:

Dicotyledons:

Anacardiaceae Sumac Family
*Toxicodendron diversilobum NC FC, e. & n.e. area

Apiaceae Carrot Family
Hydrocotyle umbellata L., Manyflower Marshpennywort U, n. area

Asclepiadaceae Milkweed Family
Asclepias fascicularis NC U, mostly on n. side of lake

Asteraceae Sunflower Family
*Ambrosia psylostachya U, n. & e. side of lake
Baccharis salicifolia NC C
Cirsium vulgare (Savi) Ten., Bull Thistle FC
Conyza canadensis (L.) Cronq., Canadian Horseweed U, w. area
Euthamia occidentalis Nutt., Western Goldenrod or Goldentop, Western Flat-topped Goldenrod A, mostly on n. & e. side of lake
Lactuca serriola L., Prickly Lettuce U
Pseudognaphalum stramineum (Kunth.) Anderb., Cotton-batting Plant FC

*Solidago spectabilis U, on n. side of Lake
Sonchus asper (L.) Hill ssp. asper, Prickly or Spiny Sow Thistle U, w. area

Boraginaceae Borage Family
Heliotropium curassavicum L., Seaside or Salt Heliotrope FC, e. side of lake

Brassicaceae Mustard Family
Hirschfeldia incana U

Caprifoliaceae Honeysuckle Family
Sambucus nigra NC U, n. side of lake

Euphorbiaceae Spurge Family
Chamaesyce serpylifolia/maculata (Discrepancy - Determination pending) FC

Fabaceae Pea Family
Melilotus officinales NC C

Haloragaceae Water-Milfoil Family
Myriophyllum sibiricum V. Komarov, Siberian milfoil, Shortspike Watermilfoil C, floating in lake

Lythraceae Loosestrife Family
Lythrum californicum Torrey & A. Gray, California Loose-strife U

Nymphaeaceae Waterlily Family
*Nymphaea odorata Aiton, Fragrant or White Waterlily U, n.e. area of lake only, plants rooted at about 3 ft. deep, growing adjacent and among, Schenoplectus acutus, collected on Oct. 23, 2008
Additional collectors:
R.F. Thorne, S.W. Tilforth June 29, 1972 elev. 2770 ft.
Pete Lounsbury June 14, 1976

Onagraceae Evening Primrose Family
Ludwigia repens Forster, Creeping Water-Primrose, Creeping Primrose-Willow
FC

Primulaceae Primrose Family
Samollus valerandi L. ssp. parviflorus (Raf.) Hulten, Water -Pimpernel, Seaside Brookweed U, n.w. side of lake in damp soil near water

Ranunculaceae Buttercup Family
Clematis ligusticifolia Nutt., Virgin’s Bower, Yerba De Chiva, Western White Clematis
FC
Rosaceae Rose Family
Duchesnea indica (Andrews) Focke, Mock or Indian Strawberry
Rubus californica NC C, mostly on e. & n. side of lake

Salicaceae Willow Family
Populus fremontii NC 2 trees, s. of lake (6 ft. & ca. 22 ft. high)
Salix exigua Nutt., Slender Sandbar Willow, Narrowleaf Willow NC A
Salix laseolepis Benth., Arroyo Willow NC C

Urticaceae Nettle Family
Urtica dioica L. ssp. holosericea (Nutt.) Thorne, Hoary or Stinging Nettle FC

Vitaceae Grape Family
Vitus girdiana R, 2 or 3 plants, n.w. side of lake, formerly occupied by Arundo donax

Monocotyledons:

Cyperaceae Sedge Family
Eleocharis montevidensis Kunth, Sand Spikerush U, n. area
Schoenoplectus acutus (Muhl. ex Bigelow) A. Love & D. Love var. occidentalis (S. Watson) S.G. Sm., (Common) Tule U

Juncaceae Rush Family
Juncus mexicanus Wild., Mexican Rush FC, s. area
Juncus rugulosus Engelm., Wrinkled Rush U

Poaceae Grass Family
Arundo donax L., Giant Reed A, n. area from 1991-1996, nearly irradicated in 2008, no live specimens observed in 2009, last pop. recently cut.
*Muhlenbergia richardsonis/californica U, n.w. side of lake


Potamogetonaceae Pondweed Family
Potamogeton illinoensis Morong, Shinning or Illinois Pondweed C, floating in lake

Typhaceae Cattail Family
Typha domingensis Pers., Southern Cattail FC, s. area
Typha latifolia L., Broadleaf Cattail A

Selected plants immediately surrounding lake in dry zone:

Adenostoma fasciculatum FC
Ceanothus crassifolia FC
Ceanothus leucodermis C
Corethrogyne filaginifolia NC C
Epilobium canum (E. Greene) Raven, California Fuchsia, Zauschneria, Hummingbird Trumpet U
Ericamera pinniflolia NC FC
Eriodictyon trichocalyx NC A
Eriogonum fasciculatum var. foliolosum A
Eucalyptus camaldulensis Dehnh., River Red Gum FC, n.w. of lake
Fraxinus velutinosa Torrey, Velvet Ash NC ? U
Garrya veatchii Kellogg, Canyon Silk Tassel FC
Hazardia squarrosa U
Heterotheca sessiliflora FC
Leymus condensatus NC R, s. of lake
Lonicera subspicata Hook. & Arn., Southern Honeysuckle FC
Malacothamnus fasciculatus U
Marrubium vulgare NC FC
Prunus ilicifolia NC U
Quercus durata ssp. grabielensis U
Rhamnus californica FC
Rhus trilobata NC FC
Senecio flaccidus Less. var. douglasii (DC.) B. Turner & T. Barkley, Bush Senecio, Shrubby Butterweed, Douglas’ Ragwort FC
Tetradymia comosa A. Gray, Hairy Horsebrush FC

Additional plants recorded by other collectors:
1. Chenopodium berlandieri Moq., Pitseed Goosefoot
R.F. Thorne, J. Dourley Oct. 10, 1967 elev. 2750 ft.
2. Helenium puberulum DC., Sneezeweed, Rosilla
Robert F. Thorne, J. Dourley Oct. 10, 1967
3. Hydrocotyle verticillata Thumb.
L.C. Wheeler Oct. 01, 1933
R.F. Thorne, C.W. Tilforth, et. al. June 29, 1972
4. Juncus arcticus Willd. ssp. littoralis (Engelm.) Hulten, Wire Rush, Mountain Rush
F.F. Thorne, J. Dourley Oct. 10, 1967 elev. 2750 ft.
5. Juncus xiphioides E. Meyer, Irisleaf Rush
Robert F. Thorne, J. Dourley Oct. 10, 1967 shallow water at n. margin of Lost Lake
6. Matricaria discoidea DC., Pineapple Weed, Rayless Chamomile, Disc Mayweed
L.C. Wheeler Mar. 20, 1970
7. Muhlenbergia asperifolia (Nees & Meyer) L. Parodi, Scratchgrass
R.F. Thorne Oct. 10, 1967 elev. 2750 ft.
8. Solanum americanum Miller
R.F. Thorne, John Dourley Oct. 10, 1967
9. Veronica anagallis-aquatica L., Water Speedwell
L.C. Wheeler Mar. 20, 1970

(some CPC names changed to comply with the USDA Plant Database - 2008)

Plants in order of abundance:
1. Schoenoplectus acutus var. occidentalis
2. Typha latifolia
3. Arundo donax (prior to 1996) (nearly irradicated in 2008)
4. Salix exigua
5. Ludwigia repens
6. Urtica dioica ssp. holosericia
7. Salix lasiolepis
8. Potomogeton illinoiensis
9. Fraxinus velutinosa


5. Twin Lakes

Collection Date:
June 20, 1996
October 16, 2008

Location:
San Bernardino County, Wrightwood, s.w. jnct. of Oriole Rd. & Willow, also s.w. jnct. of Oriole Rd. & Edna st. on Oriole Rd., Wrightwood Country Club
Map Quad: Mount San Antonio
Lat: 34 deg. 21 ‘ 17 “
Long: 117 deg. 37 ‘ 55 “
Township: 3 N
Range: 7 W
Section: 8, SE/4 of SW/4
Elevation: 6040 ft (1841 m.)
Lake description:
Original lakes channeled with cement borders with natural sand bottom, slight stream flow in front of park along Oriole Rd., grass areas w. & s. of pools with seep area in the w.
Plant communities: riparian, seeps surrounded by montane coniferous
* Collected on Oct. 16, 2008, verification pending

Species List:

Dicotyledons:

Asteraceae Sunflower Family
*Ambrosia acanthicarpa Hook., Annual Bur-sage, Flatspine Bur Ragweed FC, adj. & w. of Oriole Rd.
Artemisia ludoviciana Nutt., Silver Wormwood, White Sagebrush U, w. of lake
*Conyza bonariensis (L.) Cronq., Little Horseweed, Asthmaweed U
*Sonchus asper (L.) Hill, Prickly or Spiny Sow Thistle R, adj. & w. of Oriole Rd.
*Sonchus oleraceus L., Common Sow Thistle R, adj. & w. of Oriole Rd.
*Taraxacum officinale Wigg., Common Dandelion C, adj. & w. of Oriole Rd.

Lamiaceae Mint Family
Mentha spicata L. var. spicata, Spearmint ? U, 1 pop. w. of lake margin

Onagraceae Evening Primrose Family
*Oenothera elata Kunth., Hooker’s Evening Primrose U, adj. & w. of Oriole Rd.

Plantaginaceae Plantain Family
Plantago major L., Common Plantain C, s. of lake margin

Salicaceae Willow Family
Salix laevigata Bebb, Red Willow C, s. of lake

Scrophulariaceae Snapdragon Family
Castilleja mineata Hook., Giant Red Paintbrush R, 2 pop. on s.w. side of lake
*Veronica anagallis-aquatica L. Water Speedwell FC, adj. & w. of Oriole Rd.

Monocotyledons:

Cyperaceae Sedge Family
Eleocharis parishii Britton, Parish’s Spikerush A, s. of lake
Schoenoplectus acutus (Muhl. ex Bigelow) A. Love & D. Love var. acutus U, s. of lake

Juncaceae Rush Family
Juncus arcticus Willd. ssp. littoralis (Engelm.) Hulten, Wire Rush, Mountain Rush
A, s. of lake
Juncus duranii Ewan, Duran’s Rush C, s. of lake
Juncus xiphioides E. Meyer, Irisleaf Rush C, s. of lake

Poaceae Grass Family
Agrostis stolonifera L., Creeping Bentgrass C
Festuca rubra L., Red Fescue FC
*Poa annua L., Annual Bluegrass NC C, adj. & w. of Oriole Rd.
Poa praetensis L., Kentucky Bluegrass FC
Polypogon viridis (Gouan) Breistr. Green Bentgrass, Beardless Rabbitsfoot Grass
FC, s. of lake
Schedenorus phoenix (Scop.) Holub, Tall Fescue U
Vulpia sp. C, s. of lake

Additional plants recorded by other collectors:
1. Castilleja plagiotoma A. Gray, Mojave Indian Paintbrush
M.N. Ackley June 1929 Twin Lakes
2. Symphyotrichum ascendens (Lindl.) G.L. Nesom, Western Aster
Hulda Crooks Nov. 1, 1945 elev. 1828 m. edge of lake

Plants in order of abundance: