Osoberry Oemleria cerasiformis Calscape.org

© Michael Wolf Plant type: Shrub Size: 5 - 20 ft tall Form: Upright Growth rate: Fast Flower Color: White, Pink Flowering season: Spring Wildlife supported:

Landscape information: Sun Partial Shade Water Low, Moderate Soil drainage Fast

Pacific Oenanthe Oenanthe sarmentosa Calscape.org

© Copyright 2007 Keir Morse (www.keiriosity.com) Plant type: Perennial herb Size: 5 ft tall Flower Color: White, Red Wildlife supported:

Landscape information: Sun Full Sun Soil drainage Standing

California Primrose Oenothera avita Calscape.org

Copyright © 2000 California Academy of Sciences Plant type: Perennial herb Size: 4 - 31 in tall , 10 ft wide Form: Spreading Flower Color: White, Pink Flowering season: Spring Dormancy: Summer Semi-deciduous Wildlife supported:

Landscape information: Sun Full Sun, Partial Shade Water Low, Very Low Summer irrigation Max 1x / month once established Soil drainage Fast

California Evening-primrose Oenothera avita ssp. avita Calscape.org

Copyright © 2003 Charles E. Jones Plant type: Perennial herb Flower Color: White, Pink Wildlife supported:

Landscape information: Water Low, Very Low

California Evening Primrose Oenothera avita ssp. californica Calscape.org

© Copyright Lynn Watson (SB) Plant type: Perennial herb Size: 3 ft tall Flower Color: White, Pink Flowering season: Spring Wildlife supported:

Landscape information: Sun Full Sun, Partial Shade Water Low, Very Low Soil drainage Fast

Eureka Dunes Evening-primrose Oenothera avita ssp. eurekensis Calscape.org

Copyright © 2005 Steve Matson Plant type: Perennial herb Flower Color: White Wildlife supported:

Landscape information: Water Low, Very Low

Cave Evening-primrose Oenothera cavernae Calscape.org

Copyright © 2006 Arik Skromme Plant type: Perennial herb Flower Color: White Wildlife supported:

Fragrant Evening Primrose Oenothera cespitosa Calscape.org

© 2008 Stan Shebs Plant type: Perennial herb Size: 8 in tall Flower Color: White Flowering season: Summer, Fall Wildlife supported:

Landscape information: Sun Full Sun, Partial Shade Water Extremely Low, Very Low Soil drainage Fast

Cespitose Evening-primrose Oenothera cespitosa ssp. crinita Calscape.org

Copyright © 2013 Martha Ashton-Sikora Plant type: Perennial herb Flower Color: White Wildlife supported:

Dune Primrose Oenothera deltoides Calscape.org

© 2008 Stan Shebs Plant type: Annual herb,Perennial herb Size: 4 - 40 in tall Flower Color: White, Pink Flowering season: Spring, Summer, Fall Wildlife supported:

Landscape information: Sun Full Sun Water Extremely Low, Very Low Soil drainage Fast

Birdcage Evening Primrose Oenothera deltoides ssp. cognata Calscape.org

Copyright © 2004 Brent Miller Plant type: Annual herb,Perennial herb Flower Color: White Wildlife supported:

Birdcage Evening Primrose Oenothera deltoides ssp. deltoides Calscape.org

Copyright © 2005 Dieter Wilken Plant type: Annual herb,Perennial herb Flower Color: White Wildlife supported:

Antioch Dunes Evening Primrose Oenothera deltoides ssp. howellii Calscape.org

© 1995 Saint Mary's College of California Plant type: Perennial herb Size: 3 ft tall Flower Color: White Flowering season: Spring, Summer, Fall Wildlife supported:

Landscape information: Sun Full Sun Water Extremely Low, Very Low Soil drainage Fast

Piper's Evening Primrose Oenothera deltoides ssp. piperi Calscape.org

Copyright © 2009 Gary A. Monroe Plant type: Annual herb,Perennial herb Flower Color: Yellow Wildlife supported:

Hooker's Evening Primrose Oenothera elata Calscape.org

Copyright © 2013 Lynn Watson Plant type: Perennial herb Size: 5 ft tall , 3 ft wide Form: Upright, Rounded Growth rate: Fast, Moderate Flower Color: Orange, Yellow Flowering season: Summer, Fall Wildlife supported:

Landscape information: Sun Full Sun, Partial Shade Water Low Summer irrigation Max 1x / week once established Soil drainage Medium, Slow

Hairy Evening Primrose Oenothera elata ssp. hirsutissima Calscape.org

© 2009 Barry Breckling Plant type: Perennial herb Flower Color: Yellow Flowering season: Summer, Fall Wildlife supported:

Landscape information: Sun Full Sun Water Low

Hooker's Evening Primrose Oenothera elata ssp. hookeri Calscape.org

Copyright © 2012 Calscape. Plant type: Perennial herb Size: 5 ft tall , 5 ft wide Form: Upright, Spreading Growth rate: Fast Flower Color: Yellow Flowering season: Summer, Fall Dormancy: Winter Deciduous Wildlife supported:

Landscape information: Sun Partial Shade, Full Sun Water Low Summer irrigation Max 1x / month once established Soil drainage Fast, Medium, Slow

Yellow Evening Primrose Oenothera flava Calscape.org

Copyright © 2004 Steve Matson Plant type: Perennial herb Size: 2 ft tall Form: Upright Growth rate: Moderate Flower Color: Yellow Flowering season: Spring Wildlife supported:

Long-stem Evening-primrose Oenothera longissima Calscape.org

Copyright © 2011 Ron Wolf Plant type: Perennial herb Size: 2 - 7 ft tall Flower Color: Yellow, Orange, Red Wildlife supported:

Desert Evening Primrose Oenothera primiveris Calscape.org

Copyright © 2005 Steve Matson Plant type: Annual herb,Perennial herb Size: 1 ft tall Flower Color: Yellow, Orange, Green, Red Wildlife supported:

Desert Evening Primrose Oenothera primiveris ssp. primiveris Calscape.org

Plant type: Annual herb,Perennial herb Flower Color: Yellow Wildlife supported:

Wild Honeysuckle Oenothera suffrutescens Calscape.org

Copyright © 2006 Steve Matson Plant type: Perennial herb Size: 4 - 47 in tall Flower Color: Pink, Orange Wildlife supported:

Hairy Evening Primrose Oenothera villosa Calscape.org

Copyright © 2015 Barry Breckling Plant type: Perennial herb Flower Color: Yellow Wildlife supported:

Hairy Evening Primrose Oenothera villosa ssp. strigosa Calscape.org

Copyright © 2012 Aaron Arthur Plant type: Perennial herb Flower Color: Yellow Wildlife supported:

Wolf's Evening-primrose Oenothera wolfii Calscape.org

Copyright © 2001 Lindsay Herrera Plant type: Perennial herb Size: 2 - 3 ft tall Flower Color: Yellow Wildlife supported:

Woodyfruit Evening Primrose Oenothera xylocarpa Calscape.org

Copyright © 2002 California Academy of Sciences Plant type: Perennial herb Flower Color: Yellow, Pink, Red Wildlife supported:

Desert Ironwood Olneya tesota Calscape.org

© 2008 Rufous-crowned Sparrow Plant type: Tree Size: 20 - 33 ft tall Form: Rounded Growth rate: Slow Flower Color: Purple Flowering season: Spring Wildlife supported:

Landscape information: Sun Full Sun Water Low Soil drainage Fast

Beavertail Pricklypear Opuntia basilaris Calscape.org

Copyright © 1998 California Academy of Sciences Plant type: Shrub,Succulent Size: 1 - 2 ft tall , 5 ft wide Form: Spreading Growth rate: Slow Flower Color: Pink, Purple, Red Flowering season: Spring Dormancy: Evergreen Wildlife supported:

Landscape information: Sun Full Sun, Partial Shade Water Extremely Low, Very Low Summer irrigation Never irrigate once established Soil drainage Fast

Beavertail Pricklypear Opuntia basilaris var. basilaris Calscape.org

© 1992 Gary A. Monroe Plant type: Shrub,Succulent Size: 1 ft tall Flower Color: Pink Wildlife supported:

Landscape information: Sun Full Sun, Partial Shade

Pancake Prickly-pear Opuntia chlorotica Calscape.org

Copyright © 1998 California Academy of Sciences Plant type: Shrub,Succulent Size: 7 - 10 ft tall Flower Color: Orange, Yellow Wildlife supported:

Tulip Pricklypear Opuntia engelmannii Calscape.org

© 2005 Stan Shebs Plant type: Shrub,Succulent Size: 6 - 12 ft tall Flower Color: Yellow, White, Purple, Red Flowering season: Spring Wildlife supported:

Landscape information: Sun Full Sun, Partial Shade Water Extremely Low, Very Low

Engelmann Prickly-pear Opuntia engelmannii var. engelmannii Calscape.org

Copyright © 2010 James M. Andre Plant type: Shrub,Succulent Flower Color: Yellow Wildlife supported:

Coast Prickly Pear Opuntia littoralis Calscape.org

Copyright © 2000 Joseph Dougherty/ecology.org Plant type: Shrub,Succulent Size: 3 ft tall Flower Color: Yellow, Purple, Red Flowering season: Spring Wildlife supported:

Landscape information: Sun Full Sun Water Very Low Soil drainage Fast

Chaparral Pricklypear Opuntia oricola Calscape.org

Copyright © 2013 John Doyen Plant type: Shrub,Succulent Size: 7 ft tall Flower Color: Yellow, Orange, Purple, Red Wildlife supported:

Tulip Pricklypear Opuntia phaeacantha Calscape.org

1998 California Academy of Sciences Plant type: Succulent Size: 3 ft tall Flower Color: Orange, Pink, Yellow, Red, Brown Flowering season: Spring, Summer Wildlife supported:

Landscape information: Sun Full Sun, Partial Shade

Plains Pricklypear Opuntia polyacantha Calscape.org

Copyright © 2009 Barry Breckling Plant type: Shrub,Succulent Size: 1 - 2 ft tall Form: Mounding Growth rate: Fast Flower Color: Yellow Flowering season: Spring Wildlife supported:

Grizzlybear Pricklypear Opuntia polyacantha var. erinacea Calscape.org

Copyright © 2005 Steve Matson Plant type: Shrub,Succulent Flower Color: Yellow Wildlife supported:

Porcupine Prickly-pear Opuntia polyacantha var. hystricina Calscape.org

Copyright © 2014 California Academy of Sciences Plant type: Shrub,Succulent Flower Color: Pink Wildlife supported:

Vasey's Prickly Pear Opuntia vaseyi Calscape.org

Copyright © 2006 Andrea B. Salzman Plant type: Succulent Wildlife supported:

Tall Alpine-aster Oreostemma elatum Calscape.org

Copyright © 2011 Dean Wm. Taylor Plant type: Perennial herb Wildlife supported:

Broad Scaled Owl's Clover Orthocarpus cuspidatus Calscape.org

Copyright © 2012 Aaron Arthur Plant type: Annual herb Size: 1 ft tall Flower Color: Purple, Pink, Green Flowering season: Summer Wildlife supported:

Landscape information: Sun Full Sun

Copeland's Owl's-clover Orthocarpus cuspidatus ssp. copelandii Calscape.org

Copyright © 2014 Steve Matson Plant type: Annual herb Flower Color: Purple Wildlife supported:

Cryptantha Owl's Clover Orthocarpus cuspidatus ssp. cryptanthus Calscape.org

© Copyright 2003 Steve Matson Plant type: Annual herb Size: 1 ft tall Flower Color: Purple Wildlife supported:

Landscape information: Sun Full Sun

Siskiyou Mountains Orthocarpus Orthocarpus cuspidatus ssp. cuspidatus Calscape.org

Copyright © 2005 Chris Wagner Plant type: Annual herb Flower Color: Pink Wildlife supported:

Mountain Owl's-clover Orthocarpus imbricatus Calscape.org

Copyright © 2001 Dan Post Plant type: Annual herb Size: 1 ft tall Flower Color: Purple, Pink Wildlife supported:

Yellow Owl's Clover Orthocarpus luteus Calscape.org

© 1973 JW Stockert Plant type: Annual herb Size: 10 - 18 in tall Form: Upright Growth rate: Fast Flower Color: Yellow Flowering season: Summer Wildlife supported:

Landscape information: Sun Partial Shade

Shasta Orthocarpus Orthocarpus pachystachyus Calscape.org

Copyright © 1996 Dean Wm. Taylor Plant type: Annual herb Size: 8 in tall Flower Color: Purple, Green Wildlife supported:

Sweet Cicely Osmorhiza berteroi Calscape.org

© Copyright 2006 Steve Matson Plant type: Perennial herb Size: 2 - 4 ft tall Flower Color: White Wildlife supported:

Landscape information: Sun Full Sun, Partial Shade

California Sweetcicely Osmorhiza brachypoda Calscape.org

Copyright © 2014 Steve Matson Plant type: Perennial herb Size: 1 - 3 ft tall Flower Color: Yellow, Green Wildlife supported:

Bluntseed Sweetroot Osmorhiza depauperata Calscape.org

Copyright © 2015 Barry Breckling Plant type: Perennial herb Size: 2 - 3 ft tall Form: Upright Growth rate: Moderate Flower Color: White Flowering season: Spring Wildlife supported:

Landscape information: Sun Partial Shade

Mountain Sweet Cicely Osmorhiza occidentalis Calscape.org

© Copyright 2006 Steve Matson Plant type: Perennial herb Size: 2 - 4 ft tall Form: Upright Growth rate: Slow Flower Color: Yellow Flowering season: Spring Wildlife supported:

Landscape information: Sun Full Sun, Partial Shade

Purple Sweetroot Osmorhiza purpurea Calscape.org

Copyright © 2013 Steve Matson Plant type: Perennial herb Wildlife supported:

California Wood-sorrel Oxalis californica Calscape.org

Copyright © 2013 Keir Morse Plant type: Perennial herb,Succulent Wildlife supported:

Landscape information: Water Moderate

Redwood Sorrel Oxalis oregana Calscape.org

© Copyright 2004 Steve Matson Plant type: Perennial herb Size: 2 - 16 in tall , 6 ft wide Form: Spreading Growth rate: Fast Flower Color: Pink, White Flowering season: Spring, Winter Wildlife supported:

Landscape information: Sun Partial Shade Water Moderate, High Summer irrigation Max 1x / month once established Soil drainage Medium

Klamath Ruby Redwood Sorrel Oxalis oregana 'Klamath Ruby' Calscape.org

- Plant type: Perennial herb Size: 6 - 12 in tall , 2 - 3 ft wide Form: Prostrate, spreading Growth rate: Fast Flower Color: White, Pink Flowering season: Spring, Summer Dormancy: Evergreen Wildlife supported:

Landscape information: Sun Partial Shade Water High, Moderate Soil drainage Medium

Smith River Redwood Sorrel Oxalis oregana 'Smith River' Calscape.org

- Plant type: Perennial herb Size: 6 - 12 in tall , 2 - 3 ft wide Form: Prostrate, spreading Growth rate: Fast Flower Color: Pink, White Flowering season: Spring, Summer, Winter Dormancy: Evergreen Wildlife supported:

Landscape information: Sun Partial Shade Water High, Moderate Soil drainage Fast

Radishroot Woodsorrel Oxalis pilosa Calscape.org

Copyright © 2011 Lynn Watson Plant type: Annual herb Wildlife supported:

Landscape information: Water Moderate

Suksdorf's Wood-sorrel Oxalis suksdorfii Calscape.org

Copyright © 2015 Barrett Jeffery Plant type: Perennial herb,Succulent Flower Color: Yellow Wildlife supported:

Landscape information: Water Moderate

Threeleaf Woodsorrel Oxalis trilliifolia Calscape.org

Copyright © 2010 Sangeet Khalsa Plant type: Perennial herb,Succulent Wildlife supported:

Landscape information: Water Moderate

Mountain Sorrel Oxyria digyna Calscape.org

© Copyright 2003 Steve Matson Plant type: Perennial herb Size: 1 - 12 in tall Form: Upright Growth rate: Moderate Flower Color: Green, Red Flowering season: Summer Wildlife supported:

Landscape information: Sun Full Sun