Diablo Foothills Wildflowers A photographic guide to showy wildflowers of Diablo Foothills 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 wlegard@ebparks.org. All photographs are 2006 Wilde Legard, all rights reserved.
Wildflowers of Diablo Foothills Regional Park White Page 1 of 17 Nievitas Popcorn Flower Plagiobothrys nothofulvus Borage Family California Buckeye Aesculus californica Buckeye Family Common Yard Knotweed Polygonum arenastrum Buckwheat Family Poison Hemlock Conium maculatum Introduced Biennial Carrot Family Shepherd's Needle Scandix pecten-veneris Carrot Family Common / California Manroot Marah fabaceus Gourd Family Blue Elderberry Sambucus mexicana Honeysuckle Family Calochortus venustus White Butterfly Mariposa Lily Lily Family
Wildflowers of Diablo Foothills Regional Park White Page 2 of 17 Common Soap Plant Chlorogalum pomeridianum var. pomeridianum Lily Family Fragrant White Fritillary Fritillaria liliacea Lily Family Common Star Lily Zigadenus fremontii Lily Family Yerba Mansa Anemopsis californica Lizard's-Tail Family Common Horehound Marrubium vulgare Introduced Perennial Mint Family Black Sage Salvia mellifera Mint Family Milkmaids Cardamine californica Mustard Family Rorippa nasturtium-aquaticum White Water Cress Mustard Family
Wildflowers of Diablo Foothills Regional Park White Page 3 of 17 Hairy Fringepod Thysanocarpus curvipes Mustard Family Mouse-ear Chickweed Cerastium glomeratum Pink Family Windmill Pink Silene gallica Pink Family Stickwort Spergula arvensis ssp. arvensis Pink Family Common Chickweed Stellaria media Pink Family California Dwarf Plantain Plantago erecta Plantain Family Native California Blackberry Rubus ursinus Rose Family Lithophragma affine Woodland Star Saxifrage Family
Wildflowers of Diablo Foothills Regional Park White Page 4 of 17 California Saxifrage Saxifraga californica Saxifrage Family Valley Tassels Castilleja attenuata Yarrow Achillea millefolium Blow Wives Achyrachaena mollis Mayweed Anthemis cotula Douglas/Salt Marsh Baccharis Baccharis douglasii Slender Cottonweed Micropus californicus var. californicus Rafinesquia californica California White Chicory
Wildflowers of Diablo Foothills Regional Park White Page 5 of 17 Variable-leaf Nemophila Nemophila heterophylla Waterleaf Family Wild Heliotrope Phacelia Phacelia distans Waterleaf Family Pholistoma membranaceum White Fiesta Flower Waterleaf Family
Wildflowers of Diablo Foothills Regional Park Yellow Page 6 of 17 Common Fiddleneck Amsinckia menziesii var. intermedia Borage Family California Buttercup Ranunculus californicus Buttercup Family Prickleseed Buttercup Ranunculus muricatus Buttercup Family Sweet Fennel Foeniculum vulgare Introduced Perennial Carrot Family Pacific Woodland Sanicle Sanicula crassicaulis Carrot Family Mt. Diablo Fairy Lantern Calochortus pulchellus Lily Family Erect-pod Winter Cress Barbarea orthoceras Mustard Family Brassica nigra Black Mustard Mustard Family
Wildflowers of Diablo Foothills Regional Park Yellow Page 7 of 17 Yellow Field Mustard Brassica rapa Mustard Family Creeping Wood Sorrel Oxalis corniculata Introduced Perennial Oxalis Family Bermuda Buttercup Oxalis pes-caprae Introduced Perennial Oxalis Family Bird's-foot Deerweed Lotus corniculatus Introduced Perennial Deerweed Lotus scoparius var. scoparius California Lotus Lotus wrangelianus California Bur Clover Medicago polymorpha Trifolium dubium Shamrock Clover
Wildflowers of Diablo Foothills Regional Park Yellow Page 8 of 17 Bush Monkey Flower Mimulus aurantiacus Golden Monkey Flower Mimulus guttatus Yellow Johnny-tuck Triphysaria eriantha ssp. eriantha Yellow Star Thistle Centaurea solstitialis Pineapple Weed Chamomilla suaveolens Brass Buttons Cotula coronopifolia Introduced Perennial Mt. Diablo Helianthella Helianthella castanea Hypochaeris glabra Smooth Cat's-ear
Wildflowers of Diablo Foothills Regional Park Yellow Page 9 of 17 Rough Cat's-ear Hypochaeris radicata Introduced Perennial Bristly Ox-tongue Picris echioides -Biennial Common Groundsel Senecio vulgaris Prickly Sow Thistle Sonchus asper ssp. asper Common Sow Thistle Sonchus oleraceus Common Dandelion Taraxacum officinale Introduced Biennial-Perennial Narrow-leaf Mule's Ear Wyethia angustifolia Wyethia helenioides Gray Mule's Ear
Wildflowers of Diablo Foothills Regional Park Pink/Purple Page 10 of 17 Purple Sanicle Sanicula bipinnatifida Carrot Family Elegant Clarkia Clarkia unguiculata Evening Primrose Family Long-beaked Filaree Erodium botrys Geranium Family Red-stem Filaree Erodium cicutarium Geranium Family White-stem Filaree Erodium moschatum Geranium Family Purpletip Cut-leaf Geranium Geranium dissectum Geranium Family Hairy Dove's Foot Geranium Geranium molle Geranium Family Triteleia laxa Ithuriel's Spear Lily Family
Wildflowers of Diablo Foothills Regional Park Pink/Purple Page 11 of 17 Common Rigid Hedge Nettle Stachys ajugoides var. rigida Mint Family Wild Radish Raphanus sativus Mustard Family Pale Purple Pacific Pea Lathyrus vestitus var. vestitus Spanish Clover Lotus purshianus var. purshianus California Tea Rupertia physodes Rose Clover Trifolium hirtum Tomcat Clover Trifolium willdenovii Vicia sativa ssp. sativa Spring Vetch
Wildflowers of Diablo Foothills Regional Park Pink/Purple Page 12 of 17 Winter Vetch Vicia villosa ssp. varia -Biennial Mosquitobills Shooting Star Dodecatheon hendersonii Primrose Family Magenta Red Maids Calandrinia ciliata Purslane Family California Wild Rose Rosa californica Rose Family Bellardia Bellardia trixago Chinese Houses Collinsia heterophylla Italian Thistle Carduus pycnocephalus Cirsium vulgare Bull Thistle Introduced Biennial
Wildflowers of Diablo Foothills Regional Park Pink/Purple Page 13 of 17 Cardoon / Artichoke Thistle Cynara cardunculus Introduced Perennial Weedy Cudweed Gnaphalium luteo-album Silybum marianum Milk Thistle -Biennial
Wildflowers of Diablo Foothills Regional Park Blue Page 14 of 17 Large Hound's Tongue Cynoglossum grande Borage Family Royal Larkspur Delphinium variegatum ssp. variegatum Buttercup Family Greater Periwinkle Vinca major Introduced Perennial Dogbane Family Blue-eyed Grass Sisyrinchium bellum Iris Family Blue Dicks Dichelostemma capitatum ssp. capitatum Lily Family Blue Witch Solanum umbelliferum Nightshade Family Miniature Dove Lupine Lupinus bicolor Lupinus succulentus Arroyo Lupine
Wildflowers of Diablo Foothills Regional Park Blue Page 15 of 17 American Brooklime Speedwell Veronica americana Veronica persica Persian Speedwell
Wildflowers of Diablo Foothills Regional Park Red/Orange Page 16 of 17 California Fuchsia Epilobium canum ssp. canum Evening Primrose Family California Poppy Eschscholzia californica Poppy Family Scarlet Pimpernel Anagallis arvensis Primrose Family Common Indian Paintbrush Castilleja affinis ssp. affinis Castilleja foliolosa Woolly Paintbrush
Wildflowers of Diablo Foothills Regional Park Green/Brown Page 17 of 17 Fritillaria affinis var. affinis Checker Lily Lily Family