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 [email protected].

Seaside Heliotrope California Buckeye Common / California Manroot Common / Giant Manzanita Heliotropium curassavicum Aesculus californica Marah fabaceus Arctostaphylos manzanita ssp. manzanita Native Perennial Native Perennial Native Perennial Native Perennial Borage Family Buckeye Family Gourd Family Heath Family

Blue Elderberry White Fairy Lantern White Butterfly Mariposa Lily Common Soap Plant Sambucus mexicana Calochortus albus Calochortus venustus Chlorogalum pomeridianum var. pomeridianum Native Perennial Native Perennial Native Perennial Native Perennial Honeysuckle Family Lily Family Lily Family Lily Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve White Page 2 of 14

Common Star Lily Alkali Mallow Common Horehound Black Sage Zigadenus fremontii Malvella leprosa Marrubium vulgare Salvia mellifera Native Perennial Native Perennial Introduced Perennial Native Perennial Lily Family Mallow Family Mint Family Mint Family

Shortstem Morning Glory Field Bindweed Slender Peren. Peppergrass White Water Cress Calystegia subacaulis ssp. subacaulis Convolvulus arvensis Lepidium latifolium Rorippa nasturtium-aquaticum Native Perennial Introduced Perennial Introduced Perennial Native Perennial Morning-Glory Family Morning-Glory Family Mustard Family Mustard Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve White Page 3 of 14

Hairy Fringepod Pinklobe Linanthus Bicolor Linanthus Mouse-ear Chickweed Thysanocarpus curvipes Linanthus androsaceus Linanthus bicolor Cerastium glomeratum Native Annual Native Annual Native Annual Introduced Annual Mustard 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 Round Valley Regional Preserve White Page 4 of 14

Native California Blackberry Woodland Star Yarrow Blow Wives Rubus ursinus Lithophragma affine Achillea millefolium Achyrachaena mollis Native Perennial Native Perennial Native Perennial Native Annual Rose Family Saxifrage Family Sunflower Family Sunflower Family

Mayweed Mulefat Slender Cottonweed Longhorn Plectritis Anthemis cotula Baccharis salicifolia Micropus californicus var. californicus Plectritis macrocera Introduced Annual Native Perennial Native Annual Native Annual Sunflower Family Sunflower Family Sunflower Family Valerian Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve Yellow Page 5 of 14

Common Fiddleneck California Buttercup Prickleseed Buttercup Pacific Woodland Sanicle Amsinckia menziesii var. intermedia Ranunculus californicus Ranunculus muricatus Sanicula crassicaulis Native Annual Native Perennial Introduced Annual Native Perennial Borage Family Buttercup Family Buttercup Family Carrot Family

Mt. Diablo Fairy Lantern Black Mustard Tree Tobacco Bermuda Buttercup Calochortus pulchellus Brassica nigra Nicotiana glauca Oxalis pes-caprae Native Perennial Introduced Annual Introduced Perennial Introduced Perennial Lily Family Mustard Family Nightshade Family Oxalis Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve Yellow Page 6 of 14

Bird's-foot Deerweed California Bur Clover Sour Clover Bush Monkey Flower Lotus corniculatus Medicago polymorpha Melilotus indica Mimulus aurantiacus Introduced Perennial Introduced Annual Introduced Annual-Biennial Native Perennial Pea Family Pea Family Pea Family Snapdragon Family

Golden Monkey Flower Yellow Johnny-tuck Glue-seed Yellow Star Thistle Mimulus guttatus Triphysaria eriantha ssp. eriantha Blennosperma nanum var. nanum Centaurea solstitialis Native Perennial Native Annual Native Annual Introduced Annual Snapdragon Family Snapdragon Family Sunflower Family Sunflower Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve Yellow Page 7 of 14

Pineapple Weed Interior Golden Bush Rosilla Mt. Diablo Helianthella Chamomilla suaveolens Ericameria linearifolia Helenium puberulum Helianthella castanea Introduced Annual Native Perennial Native Biennial Native Perennial Sunflower Family Sunflower Family Sunflower Family Sunflower Family

Smooth Cat's-ear Rough Cat's-ear Common Tidytips Common / Coast Tarweed Hypochaeris glabra Hypochaeris radicata Layia platyglossa Madia sativa Introduced Annual Introduced Perennial Native Annual Native Annual Sunflower Family Sunflower Family Sunflower Family Sunflower Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve Yellow Page 8 of 14

Common Groundsel Prickly Sow Thistle Senecio vulgaris Sonchus asper ssp. asper Introduced Annual Introduced Annual Sunflower Family Sunflower Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve Pink/Purple Page 9 of 14

Pale Western Larkspur Rattlesnake Weed Purple Sanicle Elegant Clarkia Delphinium hesperium ssp. pallescens Daucus pusillus Sanicula bipinnatifida Clarkia unguiculata Native Perennial Native Annual Native Perennial Native Annual Buttercup Family Carrot Family Carrot Family Evening Primrose Family

Common Willowherb Long-beaked Filaree Red-stem Filaree Purpletip Cut-leaf Geranium Epilobium ciliatum ssp. ciliatum Erodium botrys Erodium cicutarium Geranium dissectum Native Perennial Introduced Annual Introduced Annual Introduced Annual Evening Primrose Family Geranium Family Geranium Family Geranium Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve Pink/Purple Page 10 of 14

Hairy Dove's Foot Geranium Pink / Serrated Onion Ithuriel's Spear Blue Field Madder Geranium molle Allium serra Triteleia laxa Sherardia arvensis Introduced Annual Native Perennial Native Perennial Introduced Annual Geranium Family Lily Family Lily Family Madder Family

Whorled/Narrow-leaf Milkweed Common Rigid Hedge Nettle Pale Purple Pacific Pea Rose Clover Asclepias fascicularis Stachys ajugoides var. rigida Lathyrus vestitus var. vestitus Trifolium hirtum Native Perennial Native Perennial Native Perennial Introduced Annual Milkweed Family Mint Family Pea Family Pea Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve Pink/Purple Page 11 of 14

Tomcat Clover Spring Vetch Winter Vetch California Wild Rose Trifolium willdenovii Vicia sativa ssp. sativa Vicia villosa ssp. varia Rosa californica Native Annual Introduced Annual Introduced Annual-Biennial Native Perennial Pea Family Pea Family Pea Family Rose Family

Bellardia Common Owl's Clover Purple Owl's Clover Chinese Houses Bellardia trixago Castilleja densiflora ssp. densiflora Castilleja exserta ssp. exserta Collinsia heterophylla Introduced Annual Native Annual Native Annual Native Annual Snapdragon Family Snapdragon Family Snapdragon Family Snapdragon Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve Pink/Purple Page 12 of 14

Purple Star Thistle Bull Thistle Milk Thistle Robust Vervain Centaurea calcitrapa Cirsium vulgare Silybum marianum Verbena lasiostachys var. scabrida Introduced Annual-Biennial Introduced Biennial Introduced Annual-Biennial Native Perennial Sunflower Family Sunflower Family Sunflower Family Vervain Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve Blue Page 13 of 14

Blue-eyed Grass Blue Dicks Ookow Blue Witch Sisyrinchium bellum Dichelostemma capitatum ssp. capitatum Dichelostemma congestum Solanum umbelliferum Native Perennial Native Perennial Native Perennial Native Perennial Iris Family Lily Family Lily Family Nightshade Family

Miniature Dove Lupine Lupinus bicolor Native Annual Pea Family revision 2/23/2007 Wildflowers of Round Valley Regional Preserve Red/Orange Page 14 of 14

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