Del Valle Wildflowers

A photographic guide to showy wildflowers of Del Valle Regional Park

Sorted by Flower Color

Photographs by Wilde Legard Botanist, East Bay Regional Park District Revision: February 23, 2007 More than 2,000 species of native and naturalized plants grow wild in the San Francisco Bay Area. Most are very difficult to identify without the help of good illustrations. This is designed to be a simple, color photo guide to help you identify some of these plants.

The selection of showy wildflowers displayed in this guide is by no means complete. The intent is to expand the quality and quantity of photos over time. The revision date is shown on the cover and on the header of each photo page. A comprehensive plant list for this area (including the many species not found in this publication) can be downloaded at the East Bay Regional Park District’s wild plant download page at: http://www.ebparks.org.

This guide is published electronically in Adobe Acrobat® format to accommodate these planned updates. You have permission to freely download and distribute, and print this pdf for individual use. You are not allowed to sell the electronic or printed versions.

In this version of the guide, only showy wildflowers are included. These wildflowers are sorted first by flower color, then by plant family (similar flower types), and finally by scientific name within each family. Under each photograph are four lines of information, based on the current standard wild plant reference for California: The Jepson Manual: Higher Plants of California, 1993.

Common Name These non-standard names are based on Jepson and other local references. Scientific Name Scientific names revised since 1993 are NOT included in this edition. Origin & Longevity Native or Introduced. Annual, Biennial, Perennial, or a combination. Family Name The common plant family name according to Jepson.

For readers that prefer a more comprehensive guide, sorted by scientific name, please download the “wild plants” version of this guide.

Readers are encouraged to email any suggestions or corrections to [email protected].

Seaside Heliotrope Nievitas Popcorn Flower California Buckeye Buckbrush Heliotropium curassavicum Plagiobothrys nothofulvus Aesculus californica Ceanothus cuneatus var. cuneatus Native Perennial Native Annual Native Perennial Native Perennial Borage Family Borage Family Buckeye Family Buckthorn Family

Common Yard Knotweed Poison Hemlock Dense-flower Willowherb Hillside Gooseberry Polygonum arenastrum Conium maculatum Epilobium densiflorum Ribes californicum var. californicum Introduced Annual Introduced Biennial Native Annual Native Perennial Buckwheat Family Carrot Family Evening Primrose Family Gooseberry Family revision 2/23/2007 Wildflowers of Del Valle Regional Park White Page 2 of 20

Canyon Gooseberry Common / California Manroot Oregon / Coast Manroot Blue Elderberry Ribes menziesii Marah fabaceus Marah oreganus Sambucus mexicana Native Perennial Native Perennial Native Perennial Native Perennial Gooseberry Family Gourd Family Gourd Family Honeysuckle Family

White Fairy Lantern White Butterfly Mariposa Lily Common Soap Plant Common Star Lily Calochortus albus Calochortus venustus Chlorogalum pomeridianum var. pomeridianum Zigadenus fremontii Native Perennial Native Perennial Native Perennial Native Perennial Lily Family Lily Family Lily Family Lily Family revision 2/23/2007 Wildflowers of Del Valle Regional Park White Page 3 of 20

Common Horehound Black Sage Climbing Morning Glory Shortstem Morning Glory Marrubium vulgare Salvia mellifera Calystegia purpurata ssp. purpurata Calystegia subacaulis ssp. subacaulis Introduced Perennial Native Perennial Native Perennial Native Perennial Mint Family Mint Family Morning-Glory Family Morning-Glory Family

Field Bindweed Milkmaids White Water Cress Hairy Fringepod Convolvulus arvensis Cardamine californica Rorippa nasturtium-aquaticum Thysanocarpus curvipes Introduced Perennial Native Perennial Native Perennial Native Annual Morning-Glory Family Mustard Family Mustard Family Mustard Family revision 2/23/2007 Wildflowers of Del Valle Regional Park White Page 4 of 20

White Sweet Clover Pinklobe Linanthus Bicolor Linanthus Mouse-ear Chickweed Melilotus alba Linanthus androsaceus Linanthus bicolor Cerastium glomeratum Introduced Annual-Biennial Native Annual Native Annual Introduced Annual Pea Family Phlox Family Phlox Family Pink Family

Windmill Pink Common Chickweed California Dwarf Plantain English Plantain Silene gallica Stellaria media Plantago erecta Plantago lanceolata Introduced Annual Introduced Annual Native Annual Introduced Annual Pink Family Pink Family Plantain Family Plantain Family revision 2/23/2007 Wildflowers of Del Valle Regional Park White Page 5 of 20

Creambush / Ocean Spray Oso Berry Native California Blackberry Woodland Star Holodiscus discolor Oemleria cerasiformis Rubus ursinus Lithophragma affine Native Perennial Native Perennial Native Perennial Native Perennial Rose Family Rose Family Rose Family Saxifrage Family

California Saxifrage Yarrow Blow Wives Mayweed Saxifraga californica Achillea millefolium Achyrachaena mollis Anthemis cotula Native Perennial Native Perennial Native Annual Introduced Annual Saxifrage Family Sunflower Family Sunflower Family Sunflower Family revision 2/23/2007 Wildflowers of Del Valle Regional Park White Page 6 of 20

Mulefat South American Horseweed California Everlasting Slender Cottonweed Baccharis salicifolia Conyza bonariensis Gnaphalium californicum Micropus californicus var. californicus Native Perennial Introduced Annual Native Biennial Native Annual Sunflower Family Sunflower Family Sunflower Family Sunflower Family

California White Chicory Longhorn Plectritis Yerba Santa Variable-leaf Nemophila Rafinesquia californica Plectritis macrocera Eriodictyon californicum Nemophila heterophylla Native Annual Native Annual Native Perennial Native Annual Sunflower Family Valerian Family Waterleaf Family Waterleaf Family revision 2/23/2007 Wildflowers of Del Valle Regional Park White Page 7 of 20

White Fiesta Flower Pholistoma membranaceum Native Annual Waterleaf Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Yellow Page 8 of 20

Common Fiddleneck California Buttercup Sweet Fennel Pacific Woodland Sanicle Amsinckia menziesii var. intermedia Ranunculus californicus Foeniculum vulgare Sanicula crassicaulis Native Annual Native Perennial Introduced Perennial Native Perennial Borage Family Buttercup Family Carrot Family Carrot Family

Yellow Mariposa Lily Erect-pod Winter Cress Black Mustard Yellow Field Mustard Calochortus luteus Barbarea orthoceras Brassica nigra Brassica rapa Native Perennial Native Perennial Introduced Annual Introduced Annual Lily Family Mustard Family Mustard Family Mustard Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Yellow Page 9 of 20

Tree Tobacco Bird's-foot Deerweed Deerweed California Lotus Nicotiana glauca Lotus corniculatus Lotus scoparius var. scoparius Lotus wrangelianus Introduced Perennial Introduced Perennial Native Perennial Native Annual Nightshade Family Pea Family Pea Family Pea Family

Gully Lupine California Bur Clover Sour Clover Birch-leaf Mt. Mahogany Lupinus microcarpus var. densiflorus Medicago polymorpha Melilotus indica Cercocarpus betuloides var. betuloides Native Annual Introduced Annual Introduced Annual-Biennial Native Perennial Pea Family Pea Family Pea Family Rose Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Yellow Page 10 of 20

Bush Monkey Flower Golden Monkey Flower Common Woolly Mullein Large-flower Native Dandelion Mimulus aurantiacus Mimulus guttatus Verbascum thapsus Agoseris grandiflora Native Perennial Native Perennial Introduced Biennial Native Perennial Snapdragon Family Snapdragon Family Snapdragon Family Sunflower Family

Yellow Star Thistle Pineapple Weed Brass Buttons Interior Golden Bush Centaurea solstitialis Chamomilla suaveolens Cotula coronopifolia Ericameria linearifolia Introduced Annual Introduced Annual Introduced Perennial Native Perennial Sunflower Family Sunflower Family Sunflower Family Sunflower Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Yellow Page 11 of 20

Golden Yarrow Western Goldenrod Rosilla Smooth Cat's-ear Eriophyllum confertiflorum var. confertiflorum Euthamia occidentalis Helenium puberulum Hypochaeris glabra Native Perennial Native Perennial Native Biennial Introduced Annual Sunflower Family Sunflower Family Sunflower Family Sunflower Family

Rough Cat's-ear Goldfields Common Tidytips Common / Coast Tarweed Hypochaeris radicata Lasthenia californica Layia platyglossa Madia sativa Introduced Perennial Native Annual Native Annual Native Annual Sunflower Family Sunflower Family Sunflower Family Sunflower Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Yellow Page 12 of 20

Bristly Ox-tongue Common Groundsel Prickly Sow Thistle Common Sow Thistle Picris echioides Senecio vulgaris Sonchus asper ssp. asper Sonchus oleraceus Introduced Annual-Biennial Introduced Annual Introduced Annual Introduced Annual Sunflower Family Sunflower Family Sunflower Family Sunflower Family

Narrow-leaf Mule's Ear Gray Mule's Ear Johnny-Jump-Up / Wild Pansy Wyethia angustifolia Wyethia helenioides Viola pedunculata Native Perennial Native Perennial Native Perennial Sunflower Family Sunflower Family Violet Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Pink/Purple Page 13 of 20

Pale Western Larkspur Purple Sanicle Small Clarkia Elegant Clarkia Delphinium hesperium ssp. pallescens Sanicula bipinnatifida Clarkia affinis Clarkia unguiculata Native Perennial Native Perennial Native Annual Native Annual Buttercup Family Carrot Family Evening Primrose Family Evening Primrose Family

Long-beaked Filaree Red-stem Filaree White-stem Filaree Purpletip Cut-leaf Geranium Erodium botrys Erodium cicutarium Erodium moschatum Geranium dissectum Introduced Annual Introduced Annual Introduced Annual Introduced Annual Geranium Family Geranium Family Geranium Family Geranium Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Pink/Purple Page 14 of 20

Hairy Dove's Foot Geranium Chaparral Currant Hairy Vine Honeysuckle Pink / Serrated Onion Geranium molle Ribes malvaceum var. malvaceum Lonicera hispidula var. vacillans Allium serra Introduced Annual Native Perennial Native Perennial Native Perennial Geranium Family Gooseberry Family Honeysuckle Family Lily Family

Ithuriel's Spear Blue Field Madder Whorled/Narrow-leaf Milkweed Common Coyotemint Triteleia laxa Sherardia arvensis Asclepias fascicularis Monardella villosa ssp. villosa Native Perennial Introduced Annual Native Perennial Native Perennial Lily Family Madder Family Milkweed Family Mint Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Pink/Purple Page 15 of 20

Common Rigid Hedge Nettle Vinegar Weed Pale Purple Pacific Pea California Tea Stachys ajugoides var. rigida Trichostema lanceolatum Lathyrus vestitus var. vestitus Rupertia physodes Native Perennial Native Annual Native Perennial Native Perennial Mint Family Mint Family Pea Family Pea Family

Pinpoint Clover Rose Clover Small-head Clover Tomcat Clover Trifolium gracilentum var. gracilentum Trifolium hirtum Trifolium microcephalum Trifolium willdenovii Native Annual Introduced Annual Native Annual Native Annual Pea Family Pea Family Pea Family Pea Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Pink/Purple Page 16 of 20

Spring Vetch Winter Vetch Ruby Sand Spurry Mosquitobills Shooting Star Vicia sativa ssp. sativa Vicia villosa ssp. varia Spergularia rubra Dodecatheon hendersonii Introduced Annual Introduced Annual-Biennial Introduced Annual-Perennial Native Perennial Pea Family Pea Family Pink Family Primrose Family

California Wild Rose Bellardia Purple Owl's Clover Chinese Houses Rosa californica Bellardia trixago Castilleja exserta ssp. exserta Collinsia heterophylla Native Perennial Introduced Annual Native Annual Native Annual Rose Family Snapdragon Family Snapdragon Family Snapdragon Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Pink/Purple Page 17 of 20

Italian Thistle Purple Star Thistle Bull Thistle Weedy Cudweed Carduus pycnocephalus Centaurea calcitrapa Cirsium vulgare Gnaphalium luteo-album Introduced Annual Introduced Annual-Biennial Introduced Biennial Introduced Annual Sunflower Family Sunflower Family Sunflower Family Sunflower Family

Milk Thistle Purple Salsify Lemon Verbena Robust Vervain Silybum marianum Tragopogon porrifolius Phyla nodiflora var. nodiflora Verbena lasiostachys var. scabrida Introduced Annual-Biennial Introduced Biennial-Perennial Native Perennial Native Perennial Sunflower Family Sunflower Family Vervain Family Vervain Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Blue Page 18 of 20

Large Hound's Tongue Royal Larkspur Blue-eyed Grass Blue Dicks Cynoglossum grande Delphinium variegatum ssp. variegatum Sisyrinchium bellum Dichelostemma capitatum ssp. capitatum Native Perennial Native Perennial Native Perennial Native Perennial Borage Family Buttercup Family Iris Family Lily Family

Ookow Blue Witch Miniature Dove Lupine Douglas Sky Lupine Dichelostemma congestum Solanum umbelliferum Lupinus bicolor Lupinus nanus Native Perennial Native Perennial Native Annual Native Annual Lily Family Nightshade Family Pea Family Pea Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Blue Page 19 of 20

Arroyo Lupine American Brooklime Speedwell Persian Speedwell Lupinus succulentus Veronica americana Veronica persica Native Annual Native Perennial Introduced Annual Pea Family Snapdragon Family Snapdragon Family revision 2/23/2007 Wildflowers of Del Valle Regional Park Red/Orange Page 20 of 20

California Fuchsia California Poppy Wind Poppy Scarlet Pimpernel Epilobium canum ssp. canum Eschscholzia californica Stylomecon heterophylla Anagallis arvensis Native Perennial Native Perennial Native Annual Introduced Annual Evening Primrose Family Poppy Family Poppy Family Primrose Family

Common Indian Paintbrush California Figwort Castilleja affinis ssp. affinis Scrophularia californica ssp. californica Native Perennial Native Perennial Snapdragon Family Snapdragon Family