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]. All photographs are © 2006 Wilde Legard, all rights reserved. revision 2/23/2007 Wildflowers of Del Valle Regional Park White Page 1 of 20 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