•  

Cardamine oligosperma

Bittercress

• Perennial or annual, Native
  • Family: Brassicaceae
• Small four petal flowers, sepals may be purple and/or

green

• Dehiscent fruit that look like

long pea pods

• • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=17171

Conium maculatum

Poison Hemlock

• • • Perennial, Exotic
    • Family: Apiaceae
      • Poisonous!!!
    • http://ucjeps.berkel

ey.edu/cgi- bin/get_IJM.pl?tid=

20136

Epilobium ciliatum

Willowherb

• Perennial, Native
• Family: Onagraceae
• Stems become red as plant

matures.

• • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=24344

Epilobium foliosum

California Willowherb

• • • Perennial, Native
• Family: Onagraceae
• 8-petaled flower, plant is larger in stature than Epilobium ciliatum
  • Leaves are generally folded along midrib
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=24359

Section 1: Herbaceous Eudicots

Anagallis arvensis

Scarlet Pimpernel

• Annual, Exotic
• Family: Myrsinaceae
• Small, bright orange flowers. Distinct fruits at the distal ends of relatively long peduncles
  • Flowers may also be blue
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=13197

Artemisia douglasiana

California Mugwort

• • Perennial, Native
    • Family: Asteraceae
• Distinct “mugworty” odor
• http://ucjeps.berkele

y.edu/cgi- bin/get_IJM.pl?tid=1

187

Carduus pycnocephalus

Italian Thistle

• • Annual, Exotic
• Family: Asteraceae
  • Tall
• Looks like a milk- thistle leave with bull-thistle stature
• https://ucjeps.berkeley. edu/eflora/eflora_displa

y.php?tid=82221

Cirsium vulgare

Bull Thistle

• • Perennial, Exotic
• Family: Asteraceae
• Lanceolate lobes with tipped

spines

• • Leaves not “milky”
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=2285

Claytonia perfoliata

Miner’s Lettuce

• • Perennial, Native
• Family: Montiaceae
• https://ucjeps.berkeley.edu/eflo ra/eflora_display.php?tid=49921

Convolvulus arvensis

Field Bindweed, Morning Glory

• • Perennial, Exotic
• Family: Convolvulaceae
• Flowers are pink to white,

trumpet shaped.

• Leaves arrow-head shaped
  • Binding stem, “viny”
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=20203

Cardamine oligosperma

Bittercress

• Perennial or annual, Native
  • Family: Brassicaceae
• Small four petal flowers, sepals may be purple and/or

green

• Dehiscent fruit that look like

long pea pods

• • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=17171

Conium maculatum

Poison Hemlock

• • • Perennial, Exotic
    • Family: Apiaceae
      • Poisonous!!!
    • http://ucjeps.berkel

ey.edu/cgi- bin/get_IJM.pl?tid=

20136

Epilobium ciliatum

Willowherb

• Perennial, Native
• Family: Onagraceae
• Stems become red as plant

matures.

• • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=24344

Epilobium foliosum

California Willowherb

• • • Perennial, Native
• Family: Onagraceae
• 8-petaled flower, plant is larger in stature than Epilobium ciliatum
  • Leaves are generally folded along midrib
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=24359

Eschscholzia californica

California Poppy

• Annual or perennial, Native
  • Family: Papaveraceae
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=25206

Foeniculum vulgare

Fennel

• • Perennial, Exotic
• Smells like licorice
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=25972

Galium aparine

Common Bedstraw, Atickywilly, Goosegrass

• • Annual, Native
• Family: Rubiaceae
• The larger variety of Galium
• Square stem, with plenty of space between whorls
  • Likes to stick to your pants
    • Fuzzy nutlets
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=26304

Geranium dissectum

Crane’s Bill, Cutleaf Geranium

• • Annual, Exotic
• Family: Geraniaceae
• Palmately lobed or divided

leaves

• • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=26715

Geranium molle

Dovefoot Crane’s Bill

• Annual or perennial, Exotic
  • Family: Geraniaceae
  • Leaves widely lobed
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=26729

Geranium robertianum

Herb Robert

• • Annual or perennial,

Naturalized

• • Family: Geraniaceae
  • Leaves widely lobed
• https://ucjeps.berkeley.edu/eflor a/eflora_display.php?tid=26742

Hedera helix

English Ivy

• • Perennial, Exotic
• Family: Araliaceae
• Climbing woody vine
• Ovate to diamond shape

leaves

• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=27768

Helianthus annuus

Sunflower

• • Annual, Native
• Family: Asteraceae
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=3244

Helminthotheca echiodes

Bristly Ox-tongue

• • Formerly Picris echiodes
    • Annual or perennial,

Exotic

• • • • Family: Asteraceae
        • Fuzzy leaves often covered in many white

“pimples”

• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=81752

Heracleum maximum

Cow Parsnip

• • Annual or perennial,

Native

• • • Family: Apiaceae
• https://ucjeps.berkeley. edu/eflora/eflora_displa

y.php?tid=27996

Hirschfeldia incana

Wild Mustard

• • Perennial, Exotic
  • Family: Brassicaceae
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=28295

Lactuca saligna

Narrow-leafed Lettuce, Willowleaf Lettuce

• • Annual, Exotic
• Family: Asteraceae
• Distinctly lanceolate leaves
  • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=3688

Lactuca sativa

Garden Lettuce

• • • Annual, Exotic
• Family: Asteraceae
• Alternately lobed leaves,

stems red at basal becoming green at apex.

• https://ucjeps.berkeley.edu/eflor a/eflora_display.php?tid=493

Lactuca serriola

Prickly Lettuce

• • Annual, Exotic
• Family: Asteraceae
• Leaves may be oblong and ovate to lobed/lanceolate.
  • Leaves have pronounced white bristles on underside of leaf along midrib
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=3690

Lotus corniculatus

Broadleaf Birdsfoot Trefoil, Birdfoot Deervetch

• • Annual Exotic

• Family: Fabaceae
• Bright yellow flowers, bean-like seed pods.
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=31561

Malva parviflora

Cheeseweed

• • Annual, Exotic
• Family: Malvaceae
• Often large plants with broad leaves. Seeds have distinct segmented cheese-wheel

appearance

• • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=32604

Marah fabacea

California Man-root

• • • Perennial, Native
• Family: Cucurbitaceae
  • Herbaceous or vine; bears cucumber fruits that are

spiky.

• • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=32747

Marrubium vulgare

Common Horehound

• • • Perennial, Exotic
• Family: Lamiaceae
• Square stem, fragrant leaves, distinct floral ring above leaf stems.
• http://ucjeps.berkeley.edu/c gi-bin/get_IJM.pl?tid=32810

Medicago arabica

Spotted Burclover

• Annual, Exotic
• Family: Fabaceae
• Distinct spotted leaves
  • Burs like MEDPO
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=32928

Medicago lupulina

Black Medick

• • Annual or perennial,

Exotic

• • • Family: Fabaceae
• Three leaflets per leaf, often found near the toe

of the creek.

• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=32933

Medicago polymorpha

Burclover, Bur Medic

• • Annual, Exotic
• Family: Fabaceae
• Looks like a Trifolium sp., but distinct spiky fruits that spiral are indicative

of this species.

• http://ucjeps.berkeley.edu/cgi

-bin/get_IJM.pl?tid=32938

Melissa officinalis

Lemon Balm

• • Annual, Naturalized
    • Family:Lamiaceae
• https://ucjeps.berkeley.edu/e flora/eflora_display.php?tid=3

3161

Mentha pulegium

Pennyroyal

• • Perennial, Exotic
• Family: Lamiaceae
  • Violet flowers
• http://ucjeps.berkeley.edu/c gi-bin/get_IJM.pl?tid=33206

Nasturtium officinale

Watercress

• Perennial, Native, aquatic
  • Family: Brassicaceae
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=34435

Oenanthe sarmentosa

Water Parsley, “Ditch Carrot”

• • Perennial, Native

• • Family: Apiaceae
• Grows most abundantly in or

near creek.

• • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=34904

Oxalis pes-caprae

Sourgrass, Bermuda Buttercup

• • • Perennial, Exotic
• Family: Oxalidaceae
  • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=35642

Oxalis oregana

Redwood Sorrel

• • • Perennial, Native
• Family: Oxalidaceae
• https://ucjeps.berkeley. edu/eflora/eflora_displa

y.php?tid=35641

Phacelia bolanderi

Bolander’s Phacelia

• • Perennial, Native
    • Family: Boraginaceae
• https://ucjeps.berkele y.edu/eflora/eflora_di splay.php?tid=37421

Phacelia tanacetifolia

Lacy Phacelia, Purple Tansy

• • Perennial, Native
    • Family: Boraginaceae
• https://ucjeps.berkele y.edu/eflora/eflora_di splay.php?tid=37579

Plantago lanceolata

English Plantain; Narrow Leaf Plantain

• • Perennial, Exotic

• Family: Plantaginaceae
  • Long lanceolate tapered leaves
• Often growing in

pathways

• http://ucjeps.berkeley.edu/c gi-bin/get_IJM.pl?tid=38567

Plantago major

Common Plantain

• • Perennial, Exotic
• Family: Plantaginaceae
  • Leaves are widely elliptic and narrow abruptly to petiole
• http://ucjeps.berkeley.edu/c gi-bin/get_IJM.pl?tid=38570

Persicaria hydropiperoides

Water Pepper

• • Formerly Polygonum

hydropiperoides

• • • Perennial, Native
• Family: Polygonaceae
• http://ucjeps.berkeley.edu/cg i-bin/get_IJM.pl?tid=37287

Polycarpon tetraphyllum

Four-leaved Allseed

• • Annual, Exotic
• Family: Caryophyllaceae
  • Whorls of soft fuzzy

fruits

• http://ucjeps.berkeley.edu/c gi-bin/get_IJM.pl?tid=81542

Ranunculus californica

California Buttercup

• • Perennial, Native
• Family: Ranunculaceae
  • Shiny yellow flowers,

5 petals

• http://ucjeps.berkeley.edu/cg i-bin/get_IJM.pl?tid=40867

Raphanus sativus

Cultivated Radish

• Annual or biennial, Exotic
  • Family: Brassicaceae
  • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=40992

Rumex crispis

Curly-leaved Dock

• • • Perennial, Exotic
• Family:Polygonaceae
• Long leaves curl on edges, plant turns dark red after setting seed, grows tall 2-4

feet height.

• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=42386

Scrophularia californica

California Bee-plant, California Figwort

• Perennial, Native
• Famly: Scrophulariaciae
• http://ucjeps.berkeley.edu/c gi-bin/get_IJM.pl?tid=43849

Senecio vulgaris

Old Man in the Spring

• • Annual, Exotic
• Family: Asteraceae
• Black tipped sepals
• http://ucjeps.berkeley.edu/c gi-bin/get_IJM.pl?tid=4866

Silybum marianum

Milk Thistle

• • Annual or Perennial,

Exotic

• • • Family: Asteraceae
      • “Milky” leaves
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=4918

Sinapis alba

White Mustard

• • Annual, Exotic
• Family: Brassicaceae
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=44608

Sinapis arvensis

Charlock, Harlock Mustard

• • Annual, Exotic
• Family: Brassicaceae
• Hairy stems that turn red as the

plant matures. http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=44609

•

Sonchus asper

Spiny Sowthistle, “Tie-dye Thistle”

• • Annual, Exotic
• Family: Asteraceae
• Has red stem and red to pink to green midribs on

leaves

• Base of leaf has rounded clasping lobes that are strongly curved or coiled.
• http://ucjeps.berkeley.edu/cgi

-bin/get_IJM.pl?tid=6219

Stachys ajugoides

Hedgenettle

• • Perennial, Native
• Family: Lamiaceae
  • Big and minty http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=45338

•

Taraxacum officinale

Common Dandelion

• Perennial, Exotic
• Family: Asteraceae
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=5231

Torilis arvensis

Hedge Parsley

• • Annual, Exotic
• Family: Apiaceae
• Oblong-ovate fruits covered with prickles. Fruits tend to stick to clothing, particularly shoe laces.
  • http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=46743

Tragopogon porrifolius

Purple Salsify, Oyster Plant

• • • Perrenial, Exotic
• Family: Asteraceae
  • This plant is often around 1m in height, with large purple flowers that bear fruit with pappus (“parachutes”).
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=5449

Urtica doica

Stinging Nettle

• • Perennial, Native
• Family: Urticaceae
  • Do not touch!
• https://ucjeps.berkeley

.edu/eflora/eflora_disp lay.php?tid=47575

Veronica anagallis-aquatica

Water Speedwell

• • Perennial, Exotic
• Family: Plantaginaceae
• A small flower that is light blue to white with violet lines on the petals. Leaf widely clasping or heart shaped.
• http://ucjeps.berkeley.edu/cgi- bin/get_IJM.pl?tid=47942

Vicia sativa

Spring Vetch

• • Annual, Exotic
• Family: Fabaceae
• Herbaceous or viny, fruits are pea pod shaped. Flowers are

purple.

• http://ucjeps.berkeley.edu/c gi-bin/get_IJM.pl?tid=48097

Photos: ©1999 Julie Kierstead Nelson; ©2009 Jorg Fleige; ©2012 Aaron Arthur; © 2019 Wendy St. John

Vinca major

Bigleaf Periwinkle

• • Perennial, Exotic
• Family: Apocynaceae
• Flowers are 3-5cm wide
• http://ucjeps.berkeley.edu/c gi-bin/get_IJM.pl?tid=48131

Photos: ©2007 Neal Kramer; © 2020 Wendy St. John