PLANTS OF GLENDORA’S
SOUTH HILLS

BY DICK SWINNEY

Copyright June - 1991
Revised - 1993
Revised - 2005

The following list of plant species is taken from the Glendora Foothills Plant Checklist by Dick Swinney, 1994. This checklist contains 477 taxa (species, subspecies and varieties). It includes specific information on each species, descriptions of local plant communities and fire history of the northern San Gabriel Mountain section. Both checklists were made using the plant names as they appeared in A Flora of Southern California by Philip A. Munz, 1974. All the names in this checklist now correspond to The Jepson Manual, Higher Plants of California, edited by James C. Hickman, 1993.
All plant taxa listed here that have been recorded only in the South Hills of Glendora and not in the northern section, will be indicated by an (O). Any discussion of the differences in plant species of the South Hills as compared to the San Gabriel Mountain portion of the Glendora Foothills should include the following factors:
1. A long history of animal grazing and soil disturbance in several areas of the South Hills.
2. The lower and more restricted elevations of the South Hills.
3. The largely sedimentary soil types of the South Hills verses the predominantly igneous and metamorphic soils of the northern area.
4. The absence of permanent sources of surface water in the South Hills.
5. The higher frequency of fires in the South Hills.
Non-sedimentary soil and rock types are found mostly in the eastern portion of the South Hills. The elevation within the South Hills ranges from approximately 740 feet to 1212 feet. The highest point is located in the south-central portion. The plant collections used to make this list were made by Dick Swinney from 1989 to 2005. Specimens of all species listed here and in the Plants of the Glendora Foothills were collected by Dick Swinney and identified by Andrew C. Sanders, Curator of Herbarium of the University of California at Riverside and Timothy S. Ross of Rancho Santa Ana Botanic Garden in Claremont. Specimens of all species have been deposited in the U.C. Riverside Herbarium. Selected specimens have also been deposited in the Herbarium at Rancho Santa Ana Botanic Garden in Claremont.
Of the 502 plant taxa now recorded in the Glendora Foothills Plant Checklist, 25 were found only in the South Hills. Of the 235 taxa listed here for the South Hills, 207 of these are found within the city owned 220 acre South Hills Wilderness Area. Of the plants found within the Big Dalton Canyon Wilderness Park (690 acres), 211 of these were not found in the South Hills. Whether the South Hills should geologically be included as part of the San Gabriel Mountains is not within the scope of this publication.
Several very common perennial species in the nearby foothills of the San Gabriel Mountain complex are conspicuously absent in the South Hills.These plants are found at the same elevations in the surrounding area. The following represent the most obvious of these:
1. Adenostema fasciculata Chamise
2. Ceanothus crassifolius Hoary-leafed Ceanothus
3. Ceanothus oliganthus Hairy-leaf Ceanothus
4. Eriodictyon trichocalyx Hairy-fruited Yerba Santa
5. Rhamnus ilicifolia Holly-leaved Redberry
6. Yucca whipplei ssp. parishii Chaparral Yucca

UNUSUAL PLANT OCCURRENCES

1. Baccharis sarothroides Gray Broom Baccharis - Asteraceae
This plant species is common in areas to the south and east however it has not yet apparently been recorded in Los Angeles County. Approximately 90 plants occurred at the east terminus of High Country Drive. This street was extended and all plants were cut down to ground level in 1994. All successfully resprouted. This area represents a previously disturbed mixed association of coastal sage scrub, naturalized plants and chaparral. These plants were most likely introduced. On February 27, 2005, 70 mature plants were growing on the south side of High Country Drive. Nine plants were growing as well on the south side of the newly constructed road extension. The north side of the street was cleared and landscaped. Eight plants are still managing to survive here.
Four plants were observed on a north facing slope south of Fawn Valley Road at 1501 Fawn Valley in 1994. Fifty plants were observed here on February 27, 2005 as well as nearly fifty plants nearby on the east side of Eagle Ridge. Plants were found in coastal sage scrub in the far north-eastern area as well as in disturbed areas at the eastern boundary of the South Hills. Several plants were also observed in the central portion among chaparral and coastal sage scrub. It is spreading into the undisturbed plant communities and may now be found in the eastern one-half of the South Hills.
.

2. Calochortus catalinae Wats. Catalina Mariposa Lily - Liliaceae
Two specimens have been found growing on a dry, rocky, open north-facing slope in the far east area of the South Hills. The plant community is coastal sage scrub. The area is classified as “Open Space” and is controlled by private development. This plant was growing adjacent the Dudleya multicaulis listed below. A stem and flower from one plant was collected for reference. The bulb was not disturbed and remains at its original location.
The Catalina Lily occurs from San Diego County to San Luis Obispo County. It occurs on three California offshore islands. It is generally found below 2,000 feet elevation in heavy soil. This plant does not currently have a state or federal status listing but has the following ratings by CNPS (California Native Plant Society).
List 4 = Plants of limited distribution - a watch list.
R-E-D CODE 1-2-3
R = Rarity = 1=Rare but potential for extinction low at this time.
E= Endangerment = Endangered in a portion of its range.
D=Distribution =3=´endemic to California.

The CNPS note that this species is threatened by development.

3. Dudleya multicaulis (Rose) Moran Many-stemmed Dudleya - Crassulaceae

These plants are located in an approximately 3,000 square foot area near a shallow ravine with a rocky ledge at 1050 feet in elevation. Plant # 2 above is located within this range. Two hundred and twenty plants were observed on January 20, 1991 in vegetative condition. In May of 1994, 300 plants were counted. All were in bloom at this time. On May 25 of 1996, 440 plants were noted. Most were in bloom but past their peak. The location is approximately 300 meters south east of junction of Fawn Valley and Beaverbrook Lane. On May 25, 1998, 1201 plants were counted. Of these, 370 were located as far as 50 meters to the east on a gentle east-facing slope. All the plants here were growing on rock surface or shallow soil covering the rocks. Some were on vertical faces of the rocks on both north and west exposures. There is minimal surface coverage here by coastal sage scrub plants such as Artemisia californica.
On February 27, 2005, 400 plants were counted. Many plants were just beginning to leaf out and all were in the vegetative state. The distribution seemed to be the same as the May 1998 count. This small area is now nearly completely surrounded by recent home development. The area is all private property but some is within dedicated open space owned by the development project and can not be altered. No further development can occur here and the plants seem to be in no threat of danger as long as the property owners do not encroach any further with domestic landscaping or weed abatement. The owner has already met the requirements posed by the Fire Department for weed clearance. The owner of nearly one-half of the major concentration of Dudleya multicaulis, is now aware of the existence and sensitivity of this plant population.
Plant species here include:
Allium haematochiton A
Amsinckia menziesii A
Anthriscus caucalus FC
Aphanes occidentalis A
Artemisia californica C
Avena barbata FC
Brassica nigra U
Bromus diandrus U
Bromus hordeaceus A
Bromus madritensis ssp rubens U
Calochortus catalinae R
Carduus pycnocephalus FC
Cerastium glomeratum C
Chloragalum pomeridianum R
Claytonia perfoliata
ssp. perfoliata C
Crassula connata A
Dichelostemma capitatum C
Eriogonum fasciculatum
var. foliolosum C
Erodium brachycarpum A
Gallium aparine C
Hypochoeris glabra FC
Lepidium virginicum
var. pubescens FC
Pectocarya linearis U
Plagiobothrys canescens A
Plagiobothrys nothofulvus A
Plantago erecta ssp. erecta U
Polypodium californicum C
Raphanus sativus FC
Selaginella bigelovii C
Senecio vulgaris C
Silene gallica U
Stelleria media FC
Vulpia myuros A
Vulpia octoflora A

Plants on the margins of the plateau:
Marah macrocarpus U
Mimulus aurantiacus C
Prunus ilicifolia U
Rhamnus crocea C
Ribes aureum U
Heteromales arbutifolia U
Toxicodendron diversilobum C
Salvia apiana U
Lessingia filaginifolia
var. filaginfolia U
This species is known from only five southern California counties. It occurs below 2,000 feet elevation. This plant has a federal status listing of C2 - Threat and /or distribution data are insufficient to support federal listing. It appears on list 1B of the CNPS.
1B = Plants rare, threatened or endangered throughout their range.
R-E-D CODE = 1-2-3.
This is the same as the Catalina Mariposa Lily listed above. The status report of CNPS lists this plant as threatened by development.
The above information on plant sensitivity listings was taken from the California Native Plant Society’s Inventory of Rare and Endangered Vascular Plants of California, September, 1988, Special Publication No. 1, Fourth Edition.
Three specimens of this species were removed from the site by myself in January of 1991. Two specimens that were pressed received voucher number 1580 and are in possession of the U.C. Riverside Herbarium and my own collection. One specimen was retained alive at my residence. Permission to collect here was given that day on location by the subdivision foreman. As of January 22, 1995, the single specimen had produced seven additional plants. The plants were returned to their original location in the fall of 1996.

EXPLANATION OF SYMBOLS USED IN THE TEXT

(O) = Glendora occurrence only from the South Hills
* = Non native
A = Abundant
C = Common
E = Extirpated (No longer growing in the area)
FC = Fairly Common
U = Uncommon
R = Rare

FERNS AND THEIR ALLIES

DRYOPTERIDACEAE WOOD FERN FAMILY
1. Dryopteris arguta (Kaulf.) Maxon Wood Fern, Shield Fern FC
North-facing slopes

POLYPODIACEAE POLYPODY FAMILY
1. Polypodium californicum Kaulf. California Polypody U

PTERIDACEAE BRAKE FAMILY
1. Pellaea andromedifolia (Kaulf.) Coffee Fern FC
2. Pentagramma triangularis (Kaulf.) G. Yatskievych, M.D. Windham & E. Wollenweber ssp. triangularis Goldenback Fern U
north-facing slopes

SELAGINELLACEAE SPIKE-MOSS FAMILY
1. Selaginella bigelovii L. Under. Little Club Moss C

DICOTS

AMARANTHACEAE AMARANTHUS FAMILY
1. Amaranthus albus L. Tumbleweed, Pigweed U

ANACARDIACEAE SUMAC FAMILY
1. Malosma laurina (Nutt.) Abrams Laurel or Laurel Leaf Sumac C
2. Rhus integrifolia (Nutt.) Brewer & S. Watson
Lemonadeberry FC
3. Rhus trilobata Torrey & A. Gray Skunkbrush, Squaw Bush U
common in far north-eastern area
4. * (0))Schinus molle L. Peruvian Pepper Tree U
south-facing slopes, naturalized, population and distribution increasing (2005)
5. Toxicodendron diversilobum (Torrey & A. Gray) E. Greene
Western Poison Oak A

APIACEAE CARROT FAMILY
1. (0) Bowlesia incana Ruiz Lopez & Pavon
Bowlesia R
north-facing slopes under chaparral and oak woodland canopy, three populations in central South Hills Wilderness Area
2. Anthriscus caucalis M. Bieb. Bur-Chervil C
population greatly increased between 1990 and 2005
3. *Conium maculatum L. Poison Hemlock R
disturbed areas
4. Foeniculum vulgare Miller Fennel C
especially along the Wild Iris Trail
5. Lomatium lucidum (Torrey & A. Gray) Jepson
central area, ridge top Shiny Lomatium R
6. Sanicula crassicaulis DC. Pacific Sanicle FC
north-facing slopes in central area

ASCLEPIADACEAE MILKWEED FAMILY
1. Asclepias eriocarpa Benth. Kotolo, Indian Milkweed R
2. Asclepias fascicularis Decne Narrow-Leaf Milkweed
central area U
3. Sarcostemma cynanchoides Dcne. ssp. hartwegii
(Vail) R. Holm Climbing Milkweed U

ASTERACEAE SUNFLOWER FAMILY
1. Acourtia microcephala DC. Sacapellote U
2. *Ambrosia acanthicarpa Hook. Annual Bur-Sage, FC disturbed areas Burweed, FC
3. * Ambrosia psilostachya DC. Western Ragweed U
disturbed areas
4. *Anthemis cotula L. Mayweed, Stinkweed,Dog-Fennel
C
5. Artemisia californica Less. Coastal or California Sagebrush A
6. Artemisia douglasiana Besser Mugwort FC
7. Baccharis salicifolia (Ruiz Lopez & Pavon) Pers.
Mulefat FC
8. Baccharis pilularis DC. Chaparral Broom, Coyote Brush
U
9. (0)Baccharis sarothroides A. Gray Broom Baccharis
two populations, eastern areas, see “Unusual Plant Occurrences” R
10. *Bidens pilosa L. var. pilosa Common Beggar-Ticks,
disturbed areas Spanish Needles, FC
11. Brickelia californica (Torrey & A. Gray)
Asa Gray California Bricklebush U
12. *Carduus pycnocephalus L. Italian Thistle C
13. *Centaurea melitensis L Tocalote, Yellow Star Thistle A
14. Cirsium occidentale (Nutt.) Jepson Western Thistle FC
15. *Cirsium vulgare (Savi) Ten. Bull Thistle FC
16. *Conyza bonariensis (L.) Cronq. South American Conyza U
17. *Conyza canadensis (L.) Cronz. Horseweed U
18. *Cotula australis (Slieber) Hook. f. Australian Cotula U
19. Ericameria parishii (E. Greene) H.M. Hall var. parishii
Parish Goldenbush The single plant along the Mustard Trail in the Central area was accidentally cut
down during trail maintenance. E
20. Ericameria pinifolia (A. Gray) H.M. Hall Pine-Bush
Dalton Wash area at west end of South Hills FC
21. Erigeron foliosus Nutt. var. foliosus Leaf Daisy, Fleabane U
22. Eriophyllum confertiflorum (DC.) A. Gray var. confertiflorum
Golden Yarrow FC
23. (0) Filago californica Nutt. Calilfornia Filago U
24. Gnaphalium bicolor Biolette. Two-tone Everlasting,
Bioletti’s Cudweed U
25. Gnaphalium californicum DC. Green Everlasting,
California Cudweed C
26. Gnaphalium canescens DC. ssp. microcephalum (Nutt.) Stebb. & Keil
Felt-leaf Everlasting U
27. *Gnaphalium luteo-album L. Cudweed U
28. Hazardia squarrosa (Hook. & Arn.) E. Greene
Saw-Toothed Goldenbush FC
29. Helianthus annuus L. Common Sunflower FC
30. Hemizonia fasciculata (DC.) Torrey & A. Gray
Fascicled Tarweed U
31. Heterotheca grandiflora Nutt. Telegraph Weed FC
32. Heterotheca sessiliflora (Nutt.) Shinn.
ssp. fastigiata (E. Green) Semple Golden Aster FC
33. *Hypochoeris glabra L. Smooth Cat’s Ear C
34. *Lactuca serriola L. Prickly Lettuce FC
35. (0)Lasthenia californica (A. Gray) E. Greene
only on ridge to the west of Upper Mustard Trail
Sunshine, Goldfields R
36. Lepidospartum squamatum (A. Gray) A. Gray
Dalton Wash area Scale Broom C
37. Lessingia filaginifolia (Hook. & Arn.) M.A. Lane var. filaginifolia
Cudweed Aster U
38. Malacothrix saxatilis (Nutt.) Torrey & A. Gray
var. tenuifolia (Nutt.) A. Gray Cliff Malacothrix FC
39. *Picris echioides L. Bristly Ox-Tongue U
40. Rafanesquia californica Nutt. California Chicory U
41. Senecio flaccidus Less. var. douglassii (DC.) B. Turner & T. Barkley
Shrubby Butterweed FC
42. *Senecio vulgaris L. Common Groundsel C
43. *Silybum marianum (L.) Gaerther Milk Thistle FC
in several disturbed areas
44. *Sonchus oleraceus L. Common Sow Thistle U
45. Stephanomeria virgata Benth. Wand Chicory U
46. Xanthium strumarium L. Cocklebur U

BORAGINACEAE BORAGE FAMILY
1. Amsinckia menziesii (Lehm.) Nelson & J.F. Macbr. var. intermedia
(Fisher & C. Meyer) Ganders Common Fiddleneck A
ridge-tops
2. (0)Pectocarya linearais (Ruiz Lopez & Pavon) DC.
ssp ferocula (I.M. Johnston) Thorne Slender Pectocarya C
ridge-tops
3. (0)Plagiobothrys canescens Benth. Valley Popcorn Flower FC
ridge-tops
4. Plagiobothrys nothofulvus (A. Gray) A. Gray
Popcorn Flower U

BRASSICACEAE MUSTARD FAMILY
1. *Brassica nigra (L.) Koch Black Mustard ` A
especially in burned and disturbed areas
2. *Brassica rapa L. Turnip, Field Mustard FC
3. * (0)Capsella bursa-pastoris (L.) Medikus
Shepherd’s Purse U
4. Eysimum capitatum (Douglas) E. Greene
Western Wall Flower U
5. Hirschfeldia incana (L.) Lagr.-Fossat
Mediterranean Mustard C
6. Lepidium virginicum L. var. pubescens (E. Greene) Thell.
Pepper Grass U
6. *Lobularia maritima (L.) Desv. Sweet Alyssum U
disturbed areas
7. *Raphanus sativus L. Radish FC
eastern disturbed areas
8. *Sisymbrium irio L. London Rocket FC
disturbed areas
9. *Sisymbrium officinale L. Hedge Mustard disturbed areas FC

CACTACEAE CACTUS FAMILY
1. Opuntia littoralis (Engelm.) Cockerell
abundant only on south facing slopes Coast Prickly Pear A
2. (0)Opuntia parryi Engelm. Cane, ValleyCholla, Snake Cholla central area, inside the South Hills Wilderness Area, two populations, one population of two plants became extant in 1995, population of twenty plants burned in a summer fire of 2002. One plant survived the fire as of March 2005, growing vigorously, last known population within the city limits of Glendora R

CAPRIFOLIACEAE HONEYSUCKLE FAMILY
1. Lonicera subspicata Hook. & Arn. var. denudata Rehder
Southern Honeysuckle FC
2. Sambucus mexicana C Presl. Bule Elderberry, Mexican Elderberry C
3. Symphoricarpos mollis Nutt. Creeping Snowberry, Trip Vine
north-facing slopes, especially along Big Dalton Wash Trail near Bicentennial
Heritage Park U

CARYOPHYLLACEAE PINK FAMILY
1. *Cerastium glomeratum Thull. Mouse-ear Chickweed A
2. *Silene gallica L. Common Catchfly, Campion FC
2. *Stellaria media (L.) Villars Common Chickweed C

CHENOPODIACEAE GOOSEFOOT FAMILY
1. (0)Atriplex canescens (Pursh) Nutt. ssp. linearis (S. Watson) H.M. Hall & Clements Fourwing Saltbush, Shad-Scale R
one population planted on north side of 210 Freeway on Sunflower Avenue,
spreading into adjacent Coastal Sage Scrub plant community
2. *(0)Atriplex semibaccata R.Br Australian Saltbush
in far south-eastern portion U
3. *Chenopodium album L. Pigweed, Lamb’s quarters disturbed, eastern areas FC
4. Chenopodium californicum (S. Watson) S. Watson
ridge tops California Goosefoot U
5. *Salsola tragus L. Russian Thistle, Tumbleweed disturbed, eastern areas U

CONVOLVULACEAE MORNING GLORY FAMILY
1. Calystegia macrostegia (E. Greene) Brummitt
Southern California Morning Glory FC

CRASSULACEAE STONECROP FAMILY
1. Crassula connata (Ruiz Lopez & Pavon) A. Berger
abundant locally Pygmy-weed FC
2. Dudleya lanceolata (Nutt.) Britton & Rose
Lance-Leaf Liveforever C
3. (0)Dudleya multicaulis (Rose) Moran
see introductory material under “Unusual Plant Occurrences”
Many-stemmed Dudleya R

CUCURBITACEAE GOURD FAMILY
1. Marah macrocarpus (E. Greene) E. Greene
Big Root, Chilicothe, Wild Cucumber
FC

CUSCUTACEAE DODDER FAMILY
1. Cuscuta californica Hook. & Arn. California Dodder C
2. Cuscuta pentagona Engelm. Field Dodder FC

EUPHORBIACEAE SPURGE FAMILY
1. Chamaesyce melanadenia (Torrey) Millsp.
Squaw Spurge FC
2. Eremocarpus setigerus (Hook.) Benth.
disturbed areas Turkey Mullein, Dove Weed C
3 *Euphorbia peplus L. Petty Spurge U
4. *Ricinus communis L Castor Bean U
disturbed soil


FABACEAE PEA FAMILY
1. Astragalus gambelianus E. Sheldon
Dwarf Locoweed R
one population on the highest point within the South Hills in the south-central area, one population north of junction of South Hills Trail(Mtwy) and Wild Iris Trail

2. Lathyrus vestitus Nutt. var. vestitus Chaparral Pea U
3. Lotus heermannii (Durand & Hilg.) E. Greene
Woolly Lotus U
4. Lotus scoparius (Nutt.) var. scoparius
Deer Weed, California Broom FC
5. Lotus strigosus (Nutt.) E. Greene Hairy Lotus FC
6. Lupinus bicolor Lindley Miniature Lupine, Dove Lupine
Lindley’s Annual Lupine FC
7. Lupinus hirsutissimus Benth. Stinging or Nettle Lupine U
8. (0)Lupinus succulentus Koch Arroyo Lupine, Succulent Lupine southern areas C
9. Lupinus truncatus Hook. & Arn. Nuttall’s Lupine, Collar Lupine U
10. * Medicago lupulina L. Black Medick, Yellow Trefoil
eastern disturbed areas FC
11. *(0)Trifolium hirtum All. Rose Clover, Woolly Trifolium C
south eastern area
12. Trifolium willdenovii Sprengel Tomcat Clover central area, north-facing slopes U

FAGACEAE BEECH FAMILY
1. Quercus agrifolia Nee var. agrifolia Coast Live Oak, Encina C
2. Quercus durata Jepson var. gabrielensis K. Nixon & C.H. Muller
Scrub Oak, Leather Oak C
3. Quercus durata X Q. engelmannii ________________ FC

GERANIACEAE GERANIUM FAMILY
1. * (0)Erodium botrys (Cav.) Bertol. Long-beaked Filaree FC
eastern disturbed area
2. *Erodium cicutarium (L.) L’Her. Red-stem Filaree C
3. *Erodium brachycarpum (Godron) Thell.
eastern disturbed areas Storkbill FC
4. *Geranium dissectum L. Cut-leaved Geraniium U
central South Hills Wilderness Area

GROSSULARIACEAE GOOSEBERRY FAMILY
1. Ribes amarum McClatchie Bitter Gooseberry FC
north-facing slopes
2. Ribes aureum Pursh var. gracillimum (Cov. & Britton) Jepson
Golden Currant A


HYDROPHYLLACEAE WATERLEAF FAMILY
1. Eucrypta chrysanthemifolia (Benth.) E. Greene
Common Eucrypta FC
2. Phacelia cicutaria. Greene var. hispida (A. Gray) J. Howell
Caterpillar Phacelia C
3. Phacelia distans Benth Fern-leaf Phacelia FC
far western area
4. Phacelia minor (Harvey) Thell Wild Canterberry-Bell U
5. Pholistima auritium (Lindley) Lilja Fiesta Flower
north-facing slopes in central South Hills Wilderness Area, Toyon Trail, Elderberry Trail, Walnut Trail U
6. (0)Turricula parryi (A. Gray) J.F. Macbr.
one plant in far south-western area Poodle-Dog Bush R
one observed on Apr. 28, 1990, veg. only

JUGLANDACEAE WALNUT FAMILY
1. Juglans californica S. Watson California Black Walnut C

LAMIACEAE MINT FAMILY
1. *Lamium amplexicaule L. Common Henbit, Dead Nettle U
2. * Marrubium vulgare L. Horehound C
3. Salvia apiana Jepson White Sage C
4. Salvia mellifera E.Greene Black Sage FC
5. Scutellaria tuberosa Benth. Skullcap
west area, Walnut Trail R
6. (0)Trichostema lanceolatum Benth. Vinegar Weed U
disturbed areas

MALVACEAE MALLOW FAMILY
1. Malacothamnus fasciculatus (Torrey & A. Gray) E. Greene
Chaparral Mallow, Bush Mallow U
2. *Malva parviflora L. Cheeseweed, Little Mallow disturbed eastern areas FC

MYRTACEAE MYRTLE FAMILY
1. *Eucalyptus camaldulensis Dehnh. Red Gum, River Red Gum
one population west of Elwood Avenue in central area R
NYCTAGINACEAE FOUR-O’CLOCK FAMILY
1. Mirabilis californica A. Gray Wishbone Bush FC

OLEACEAE OLIVE FAMILY
1. *Fraxinus uhdei (Wanz.) Lingelsh. Shamel Ash, Evergreen Ash
north-facing slope in north-eastern area U



ONAGRACEAE EVENING PRIMROSE FAMILY
1. Camissonia bistorta (Torrey & A. Gray) Raven
western area Southern Sun Cups U
2. (0)Clarkia bottae (Spach) Harlan Lewis & M. Lewis
Punch-Bowl Godetia, Farewell-to- Spring
One population in western area R
3. Clarkia purpurea (Curtis) Nelson & J.F. Macbr. ssp. quadrivulnera (Douglas) Harlan Lewis & M. Lewis Four -Spot, Purple Clarkia U
4. Epilobium canum (E. Greene) Raven ssp. canum
California Fuchsia U

OXALIDACEAE OXALIS or WOOD-SORREL FAMILY
1. *Oxalis corniculata L. Yellow Oxalis
disturbed areas U
2. *Oxalis pes-caprae L. Bermuda Buttercup, Sour Grass, Cape Oxalis
disturbed areas U

PAEONIACEAE PEONY FAMILY
1. Paeonia californica Torrey & A. Gray
Peony U

PAPAVERACEAE POPPY FAMILY
1. Eschscholzia californica Cham. var. crocea (Benth.) Jeps.
mostly eastern and southern areas California Poppy U

PLANTAGINACEAE POPPY FAMILY
1. *(0)Plantago erecta Morris ssp. erecta
California Plantain one population on north-facing slope in the central area. R

PLATANACEAE SYCAMORE FAMILY
1. Platanus racemosa Nutt. Western Sycamore, Plane-Tree FC

POLEMONIACEAE PHLOX FAMILY
1. Gilia angelensis V. Grant Angel Gilia central area, ridge tops FC
2. Navarretia atractyloIdes (Benth.) H. & A.
far western area Holly-leaved Navarretia U

POLYGONACEAE BUCKWHEAT FAMILY
1. Eriogonum elongatum Benth. var. elongatum
Long-stemmed Buckwheat, Wand Buckwheat
FC
2. Erigonum fasciculatum Benth. var. foliolosum S. Watson
California Buckwheat C
3. *Polygonum arenastrum Boreau Common Knotweed, Doorweed FC
4. *Rumex crispus L. Curly Dock U

PORTULACEAE PURSLANE FAMILY
1. Calandrinia ciliata (Ruiz Lopez & Pavon) DC.
Red Maids U
2. Claytonia perfoliata Willd. ssp. perfoliata
Miners-lettuce C

PRIMULACEAE PRIMROSE FAMILY
1. *Anagalus arvensis L. Scarlet Pimpernel, Poor Man’s Weather Glass U
2. Dodecatheon clevelandii E. Greene ssp. clevelandii
one planat in south-central area Padre’s Shooting Star R

RANUNCULACEAE CROWFOOT FAMILY
1. Clematis pauciflora Nutt. Small-leaved Clematus, Ropevine U
2. Delphinium cardinale Hook. Cardinal or Scarlet Larkspur U

RHAMNACEAE BUCKTHORN FAMILY
1. Rhamnus californica Eschsch. ssp. californica
Coffee Berry FC
2. Rhamnus crocea Nutt. Spiny Redberry A

ROSACEAE ROSE FAMILY
1. (0)Aphanes occidentalis (Nutt.) Rydb.Western Lady’s Mantle, Dew-Cup far-eastern area U
2. Cercocarpus betuloides Torrey & A. Gray
Mountain Mahogony U
3. Heteromeles arbutifolia (Lindley) Roemer
Christmas Berry, Toyon C
4. Potentilla glandulosa Lindley Sticky Cinquefoil R
5. Prunus ilicifolia (Nutt.) Walp. Holly-leaved Cherry, Islay
mostly in eastern and central area FC
6. Rosa californica Cham. Calilfornia Rose eastern area R

RUBIACEAE MADDER FAMILY
1. Galium angustifolium Nutt. ssp. angustifolium
Narrow-leaved Bedstraw FC
2. *Galium aparine L. Goose Grass , Cleavers FC

SALICACEAE WILLOW FAMILY
1. Salix goodingii C. Ball Goodding’s Black Willow U
canyon bottoms of central area
2. Salix exigua Nutt. Narrow-leaved Willow
far western area R
3. Salix lasiolepis Benth. Arroyo Willow canyons of central area U

SCROPHULARIACEAE SAXIFRAGE FAMILY
1. Collinsia heterophylla Buist Chinese Houses
northeast area in ravine, abundant at this location only R
2. Keckiella cordifolia (Benth.) Straw Heart-leaved Keckiella U
3. Mimulus aurantiacus Curtis Bush Monkey Flower,
Sticky Monkey Flower FC
4. Penstemon spectabilis Thurber Showy Penstemon U
5. *Verbascum blattaria L. Moth Mullein U
disturbed areas
6. *Veronica anagalis-aquatica L. Water Speedwell R
far-eastern area, drainage channel

SIMARUBACEAE QUASSIA FAMILY
1. *Ailanthus altissima (Miller) Swingle Tree of Heaven
north-eastern area R

SOLANACEAE NIGHTSHADE FAMILY
1. Datura wrightii Regel Jimpson Weed, Toloache, Thorn Apple,
Moon Lily U
2. *Nicotiana glauca Graham Tree Tobacco U
3. Solanum douglasii Dunal White Nightshade U
4. Solanum xanti A. Gray Purple Nightshade U

TAMARICACEAE TAMARISK FAMILY
1. Tamarix ramosissima Ledeb. Tamarisk R
one plant in far west area near Glendora Avenue

TROPAEOLACEAE NASTURTIUM FAMILY
1. Tropaeolum majus L. Garden Nasturtium R
one plant on cliff in central area

URTICACEAE NETTLE FAMILY
1. Parietaria hespera B.D. Hinton var. californica B.D. Hinton
Pellitory FC
2. *(0)Urtica urens L. Dwarf Nettle C

VIOLACEAE VIOLET FAMILY
1. (0)Viola pedunculata Torrey & A. Gray
Johnny-Jump-Up
mostly in central ridge tops and north facing slopes, some in the far-eastern area
FC
VISCACEAE MISTLETOE FAMILY
1. Phoradendron macrophyllum (Engelm.) Cockerell
on Platanus racemosa Big Leaf Mistletoe, Long-spiked Mistletoe C
2. Phoradendron villosum (Nutt.) Nutt. Oak Mistletoe, Hairy Mistletoe
on Juglans californica R

ZYGOPHYLLACEAE CALTROP FAMILY
1. *Tribulus terrestris L. Puncture Vine, Caltrop disturbed areas U

MONOCOTS

CYPERACEAE SEDGE FAMILY
1. *Cyperus alternifolius L. Umbrella Pliant
far-eastern area along drainage ditch R
2. Eleocharis sp. Spike-rush
one small population in central area R

IRIDACEAE IRIS FAMILY
1. Sisyrinchium bellum S. Watson Blue-eyed-Grass U
mostly in central area, Wild Iris Trail, scattered throughout

LILIACEAE LILY FAMILY
1. Allium haematochiton S. Watson Red-skinned Onion Several populations in central and eastern areas U
2. * (0)Allium vineale L. Field Garlic, Crow Garlic, Stags Garlic
R
one population in far-eastern area in disturbed ground, now subdivided, no plants
found in March of 2005, may be extant
3. Bloomeria crocea ( Torrey) Cov. Common Goldenstar several locations U
4. Calochortus catalinae S. Watson Catalina Mariposa Lily
two plants in central far-eastern area R
5. Chlorogalum pomeridianum (DC.) Kunth
Soap Plant, Amole FC
6. Dichelostemma capitatum Alph. Wood
Blue Dicks, Wild Hyacinth A
7. Zigadenus fremontii (Torrey) S. Watson
two populations, central area, ridge-tops
one population of 29 plants in south-eastern area near junction of north extension of Sunflower Avenue and South Hills Motorway
White Star Lily R


POACEAE GRASS FAMILY
1. *Arundo donax L. Giant Reed R
north terminus of Bonnie Cove Avenu
2. *Avena barbata Link Slender Wild Oat C
3. * Avena fatua L. Wild Oat R
4. *Avena sativa L. Cultivated Oats R
5. *Bromus diandrus Roth Ripgut Grass C
6. *Bromus hordeaceus L Soft Chess U
7. *Bromus madritensis L. ssp. rubens (L.) Husnot
Red Brome, Foxtail Chess A
8. *Cynodon dactylon (L.) Pers. Bermuda Grass
mostly in far-eastern area U
9. *Digitaria sanquinalis (L.) Scop Crabgrass
mostly in far-eastern area U
10. *Echinochloa crus-galli (L.) P. Beauv.
far-eastern area along drainage ditch Barnyard Grass U
11. *Ehrharta calysina Smith Veldt Grass, Ehrharta U
12. Leymus condensatus (C. Presll) A. Love
north-facing slopes Giant Wild Rye FC
13. Leymus triticoides (Buckley) Pilger
Alkali Rye Grass U
14. *Hordeum murinum L. Foxtail Barley, Farmer’s Foxtail disturbed areas U
15. *Lamarkia aurea (L.) Moench Goldentop R
16. *Lolium perenne L. Perennial Ryegrass ,English rye Grass
U
17. Melica imperfecta Trin. Chaparral Melica FC
18. *Piptatherum meliaceum (L) Cosson
Smilo Grass FC
19. *Pennisetum clandestinum Chiov. Kikuyu Grass
far-eastern disturbed areas R
20. *Pennisetum setaceum Forskal Fountain Grass R
21. *Poa annua L. Annual Bluegrass R
22. *(0)Schismus barbatus (L.) Thell. Mediterranean Grass
on ridge tops along dirt motorways C
23. *Setaria gracilis Kunth Bristle Grass R
24. *Sorghum halepense (L.) Pers. Johnsongrass
far eastern area R
25. (0)Nassella cernua (Stebb. & Love) Barkworth
central area on ridge top Nodding Needlegrass R
26*Vulpia myuros (L) C. Gmelin Foxtail Fescue
ridge tops U
27. Vulpia octoflora (Walter) Rydb. Six-week Fescue U

TYPHACEAE CAT-TAIL FAMILY
1. Typha latifolia L. Broad-leaved Catt ail
in far eastern area along drainage ditch R