Round Valley Wildflowers A photographic guide to showy wildflowers of Round Valley 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 Round Valley Regional Preserve White Page 1 of 14 Seaside Heliotrope Heliotropium curassavicum Borage Family California Buckeye Aesculus californica Buckeye Family Common / California Manroot Marah fabaceus Gourd Family Common / Giant Manzanita Arctostaphylos manzanita ssp. manzanita Heath Family Blue Elderberry Sambucus mexicana Honeysuckle Family White Fairy Lantern Calochortus albus White Butterfly Mariposa Lily Calochortus venustus Chlorogalum pomeridianum var. pomeridianum Common Soap Plant
Wildflowers of Round Valley Regional Preserve White Page 2 of 14 Common Star Lily Zigadenus fremontii Alkali Mallow Malvella leprosa Mallow Family Common Horehound Marrubium vulgare Introduced Perennial Mint Family Black Sage Salvia mellifera Mint Family Shortstem Morning Glory Calystegia subacaulis ssp. subacaulis Morning-Glory Family Field Bindweed Convolvulus arvensis Introduced Perennial Morning-Glory Family Slender Peren. Peppergrass Lepidium latifolium Introduced Perennial Mustard Family Rorippa nasturtium-aquaticum White Water Cress Mustard Family
Wildflowers of Round Valley Regional Preserve White Page 3 of 14 Hairy Fringepod Thysanocarpus curvipes Mustard Family Pinklobe Linanthus Linanthus androsaceus Phlox Family Bicolor Linanthus Linanthus bicolor Phlox Family Mouse-ear Chickweed Cerastium glomeratum Pink Family Windmill Pink Silene gallica Pink Family Common Chickweed Stellaria media Pink Family California Dwarf Plantain Plantago erecta Plantain Family Plantago lanceolata English Plantain Plantain Family
Wildflowers of Round Valley Regional Preserve White Page 4 of 14 Native California Blackberry Rubus ursinus Rose Family Woodland Star Lithophragma affine Saxifrage Family Yarrow Achillea millefolium Blow Wives Achyrachaena mollis Mayweed Anthemis cotula Mulefat Baccharis salicifolia Slender Cottonweed Micropus californicus var. californicus Plectritis macrocera Longhorn Plectritis Valerian Family
Wildflowers of Round Valley Regional Preserve Yellow Page 5 of 14 Common Fiddleneck Amsinckia menziesii var. intermedia Borage Family California Buttercup Ranunculus californicus Buttercup Family Prickleseed Buttercup Ranunculus muricatus Buttercup Family Pacific Woodland Sanicle Sanicula crassicaulis Carrot Family Mt. Diablo Fairy Lantern Calochortus pulchellus Black Mustard Brassica nigra Mustard Family Tree Tobacco Nicotiana glauca Introduced Perennial Nightshade Family Oxalis pes-caprae Bermuda Buttercup Introduced Perennial Oxalis Family
Wildflowers of Round Valley Regional Preserve Yellow Page 6 of 14 Bird's-foot Deerweed Lotus corniculatus Introduced Perennial California Bur Clover Medicago polymorpha Sour Clover Melilotus indica -Biennial Bush Monkey Flower Mimulus aurantiacus Snapdragon Family Golden Monkey Flower Mimulus guttatus Snapdragon Family Yellow Johnny-tuck Triphysaria eriantha ssp. eriantha Snapdragon Family Glue-seed Blennosperma nanum var. nanum Centaurea solstitialis Yellow Star Thistle
Wildflowers of Round Valley Regional Preserve Yellow Page 7 of 14 Pineapple Weed Chamomilla suaveolens Interior Golden Bush Ericameria linearifolia Rosilla Helenium puberulum Native Biennial Mt. Diablo Helianthella Helianthella castanea Smooth Cat's-ear Hypochaeris glabra Rough Cat's-ear Hypochaeris radicata Introduced Perennial Common Tidytips Layia platyglossa Madia sativa Common / Coast Tarweed
Wildflowers of Round Valley Regional Preserve Yellow Page 8 of 14 Common Groundsel Senecio vulgaris Sonchus asper ssp. asper Prickly Sow Thistle
Wildflowers of Round Valley Regional Preserve Pink/Purple Page 9 of 14 Pale Western Larkspur Delphinium hesperium ssp. pallescens Buttercup Family Rattlesnake Weed Daucus pusillus Carrot Family Purple Sanicle Sanicula bipinnatifida Carrot Family Elegant Clarkia Clarkia unguiculata Evening Primrose Family Common Willowherb Epilobium ciliatum ssp. ciliatum Evening Primrose Family Long-beaked Filaree Erodium botrys Geranium Family Red-stem Filaree Erodium cicutarium Geranium Family Geranium dissectum Purpletip Cut-leaf Geranium Geranium Family
Wildflowers of Round Valley Regional Preserve Pink/Purple Page 10 of 14 Hairy Dove's Foot Geranium Geranium molle Geranium Family Pink / Serrated Onion Allium serra Ithuriel's Spear Triteleia laxa Blue Field Madder Sherardia arvensis Madder Family Whorled/Narrow-leaf Milkweed Asclepias fascicularis Milkweed Family Common Rigid Hedge Nettle Stachys ajugoides var. rigida Mint Family Pale Purple Pacific Pea Lathyrus vestitus var. vestitus Trifolium hirtum Rose Clover
Wildflowers of Round Valley Regional Preserve Pink/Purple Page 11 of 14 Tomcat Clover Trifolium willdenovii Spring Vetch Vicia sativa ssp. sativa Winter Vetch Vicia villosa ssp. varia -Biennial California Wild Rose Rosa californica Rose Family Bellardia Bellardia trixago Snapdragon Family Common Owl's Clover Castilleja densiflora ssp. densiflora Snapdragon Family Purple Owl's Clover Castilleja exserta ssp. exserta Snapdragon Family Collinsia heterophylla Chinese Houses Snapdragon Family
Wildflowers of Round Valley Regional Preserve Pink/Purple Page 12 of 14 Purple Star Thistle Centaurea calcitrapa -Biennial Bull Thistle Cirsium vulgare Introduced Biennial Milk Thistle Silybum marianum -Biennial Verbena lasiostachys var. scabrida Robust Vervain Vervain Family
Wildflowers of Round Valley Regional Preserve Blue Page 13 of 14 Blue-eyed Grass Sisyrinchium bellum Iris Family Blue Dicks Dichelostemma capitatum ssp. capitatum Ookow Dichelostemma congestum Blue Witch Solanum umbelliferum Nightshade Family Lupinus bicolor Miniature Dove Lupine
Wildflowers of Round Valley Regional Preserve Red/Orange Page 14 of 14 California Fuchsia Epilobium canum ssp. canum Evening Primrose Family California Poppy Eschscholzia californica Poppy Family Anagallis arvensis Scarlet Pimpernel Primrose Family