Peirson's Aster

Oreostemma peirsonii

Calscape.org

Copyright © University and Jepson Herbaria

Plant type: Perennial herb
Size: 3 in tall
Flower Color: Green, Purple
Wildlife supported:

Baja California Birdbush

Ornithostaphylos oppositifolia

Calscape.org

© 2010 Calscape. Photo take at Rancho Santa Ana Botanical Garden

Plant type: Shrub
Size: 15 ft tall , 10 ft wide
Form: Rounded
Growth rate: Slow, Very Slow
Flower Color: White
Flowering season: Winter, Spring
Dormancy: Evergreen
Wildlife supported:
Hummingbirds
Birds
Landscape information:
Sun
Sun

Full Sun
Water
Water

Low, Very Low
Irrigation
Summer irrigation

Max 1x / month once established
Watering
Soil drainage

Fast, Medium

California Mountain Pincushion

Orochaenactis thysanocarpha

Calscape.org

Copyright © 2011 Steve Matson

Plant type: Annual herb
Size: 10 in tall
Flower Color: Purple
Wildlife supported:

One Sided Wintergreen

Orthilia secunda

Calscape.org

© Copyright 2003 Steve Matson

Plant type: Perennial herb
Size: 8 in tall
Wildlife supported:
Landscape information:
Sun
Sun

Deep Shade

Rosy Owl's-clover

Orthocarpus bracteosus

Calscape.org

Copyright © 2008 Keir Morse

Plant type: Annual herb
Size: 1 ft tall
Flower Color: Pink, Purple, White
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:
bumblebee
caterpillar
butterfly
Landscape information:
Sun
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:
caterpillar
butterfly

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:
bumblebee
caterpillar
butterfly
Landscape information:
Sun
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:
caterpillar
butterfly

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:
caterpillar
butterfly

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:
bumblebee
caterpillar
butterfly
Landscape information:
Sun
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:
caterpillar
butterfly

Nevada Oryctes

Oryctes nevadensis

Calscape.org

Copyright © 2003 Gary A. Monroe

Plant type: Annual herb
Size: 8 in tall
Flower Color: Purple
Wildlife supported:

Osmadenia

Osmadenia tenella

Calscape.org

Copyright © 2011 Steve Matson

Plant type: Annual herb
Size: 1 ft tall
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:
caterpillar
butterfly
Landscape information:
Sun
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:
caterpillar
butterfly

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:
caterpillar
butterfly
Landscape information:
Sun
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:
caterpillar
butterfly
Landscape information:
Sun
Sun

Full Sun, Partial Shade

Purple Sweetroot

Osmorhiza purpurea

Calscape.org

Copyright © 2013 Steve Matson

Plant type: Perennial herb
Wildlife supported:
caterpillar
butterfly

California Wood-sorrel

Oxalis californica

Calscape.org

Copyright © 2013 Keir Morse

Plant type: Perennial herb,Succulent
Wildlife supported:
caterpillar
butterfly
Landscape information:
Water
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:
Bats
caterpillar
butterfly
Landscape information:
Sun
Sun

Partial Shade
Water
Water

Moderate, High
Irrigation
Summer irrigation

Max 1x / month once established
Watering
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:
Bats
caterpillar
butterfly
Landscape information:
Sun
Sun

Partial Shade
Water
Water

High, Moderate
Watering
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:
Bats
caterpillar
butterfly
Landscape information:
Sun
Sun

Partial Shade
Water
Water

High, Moderate
Watering
Soil drainage

Fast

Radishroot Woodsorrel

Oxalis pilosa

Calscape.org

Copyright © 2011 Lynn Watson

Plant type: Annual herb
Wildlife supported:
caterpillar
butterfly
Landscape information:
Water
Water

Moderate

Suksdorf's Wood-sorrel

Oxalis suksdorfii

Calscape.org

Copyright © 2015 Barrett Jeffery

Plant type: Perennial herb,Succulent
Flower Color: Yellow
Wildlife supported:
caterpillar
butterfly
Landscape information:
Water
Water

Moderate

Threeleaf Woodsorrel

Oxalis trilliifolia

Calscape.org

Copyright © 2010 Sangeet Khalsa

Plant type: Perennial herb,Succulent
Wildlife supported:
caterpillar
butterfly
Landscape information:
Water
Water

Moderate

Western Cowbane

Oxypolis occidentalis

Calscape.org

Copyright © 2010 Barry Breckling

Plant type: Perennial herb
Size: 3 - 5 ft tall
Flower Color: White
Wildlife supported:

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:
caterpillar
butterfly
Landscape information:
Sun
Sun

Full Sun

Narrowleaf Oxytheca

Oxytheca dendroidea

Calscape.org

Copyright © 2008 Steve Matson

Plant type: Annual herb
Wildlife supported:
caterpillar
butterfly

Tree-like Puncturebract

Oxytheca dendroidea ssp. dendroidea

Calscape.org

Copyright © 2008 Steve Matson

Plant type: Annual herb
Wildlife supported:
caterpillar
butterfly

Roundleaf Puncturebract

Oxytheca perfoliata

Calscape.org

© 2008 Stan Shebs

Plant type: Annual herb
Size: 2 - 8 in tall
Flower Color: White, Yellow, Green
Wildlife supported:
caterpillar
butterfly
Landscape information:
Sun
Sun

Full Sun
Watering
Soil drainage

Fast

Watson's Oxytheca

Oxytheca watsonii

Calscape.org

Copyright © 2007 Steve Matson

Plant type: Annual herb
Size: 2 - 10 in tall
Wildlife supported:
caterpillar
butterfly

Boreal Locoweed

Oxytropis borealis

Calscape.org

Copyright © 2013 Steve Matson

Plant type: Perennial herb
Wildlife supported:
caterpillar
butterfly
Landscape information:
Sun
Sun

Full Sun

Boreal Locoweed

Oxytropis borealis var. australis

Calscape.org

Copyright © 2013 Steve Matson

Plant type: Perennial herb
Wildlife supported:
caterpillar
butterfly

Viscid Locoweed

Oxytropis borealis var. viscida

Calscape.org

© 1996 Gary A. Monroe

Plant type: Perennial herb
Wildlife supported:
caterpillar
butterfly
Landscape information:
Sun
Sun

Full Sun

Blue Nodding Locoweed

Oxytropis deflexa

Calscape.org

Copyright © 2013 Steve Matson

Plant type: Perennial herb
Wildlife supported:
caterpillar
butterfly

Blue Pendent-pod Oxytrope

Oxytropis deflexa var. sericea

Calscape.org

Copyright © 2015 Barry Breckling

Plant type: Perennial herb
Wildlife supported:
caterpillar
butterfly

Mountain Oxytrope

Oxytropis oreophila

Calscape.org

Copyright © 2013 Steve Matson

Plant type: Perennial herb
Wildlife supported:
caterpillar
butterfly

Rock-loving Oxytrope

Oxytropis oreophila var. oreophila

Calscape.org

Copyright © 2008 Thomas Stoughton

Plant type: Perennial herb
Wildlife supported:
caterpillar
butterfly

Parry's Oxytrope

Oxytropis parryi

Calscape.org

Copyright © 2012 Steve Matson

Plant type: Perennial herb
Wildlife supported:
caterpillar
butterfly
Landscape information:
Sun
Sun

Partial Shade

Ozomelis diversifolia

Calscape.org

Copyright © 2013 John Doyen

Plant type: Perennial herb
Size: 8 - 19 in tall
Wildlife supported:

Three Parted Miterwort

Ozomelis trifida

Calscape.org

Copyright © 1986 Dan Post

Plant type: Perennial herb
Size: 6 - 18 in tall
Flower Color: White, Purple
Wildlife supported:
Landscape information:
Sun
Sun

Deep Shade

San Bernardino Ragwort

Packera bernardina

Calscape.org

Copyright © 2012 Duncan S. Bell

Plant type: Perennial herb
Size: 1 - 2 ft tall
Wildlife supported:

Bolander's Ragwort

Packera bolanderi

Calscape.org

Copyright © 2015 Adrienne Simmons

Plant type: Perennial herb
Size: 2 ft tall
Flower Color: Yellow
Wildlife supported:

Seacoast Ragwort

Packera bolanderi var. bolanderi

Calscape.org

Copyright © 2015 Adrienne Simmons

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

Groundsel

Packera breweri

Calscape.org

© 2009 Barry Breckling

Plant type: Perennial herb
Size: 2 - 4 ft tall
Flower Color: Yellow
Wildlife supported:
caterpillar
butterfly
Landscape information:
Sun
Sun

Full Sun, Partial Shade

Woolly Groundsel

Packera cana

Calscape.org

Copyright © 2005 Steve Matson

Plant type: Perennial herb
Size: 10 - 18 in tall
Form: Upright
Growth rate: Moderate
Flower Color: Yellow
Flowering season: Spring
Wildlife supported:

Cleveland's Ragwort

Packera clevelandii

Calscape.org

Copyright © 2011 Barry Breckling

Plant type: Perennial herb
Size: 3 ft tall
Flower Color: Yellow
Wildlife supported:

Widehead Groundsel

Packera eurycephala

Calscape.org

Copyright © Rick York and CNPS

Plant type: Perennial herb
Size: 2 ft tall
Flower Color: Yellow
Wildlife supported:

Widehead Groundsel

Packera eurycephala var. eurycephala

Calscape.org

Copyright © 2013 Jake Ruygt

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

Lewis Rose's Ragwort

Packera eurycephala var. lewisrosei

Calscape.org

Copyright © Rick York and CNPS

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

Gander's Ragwort

Packera ganderi

Calscape.org

Copyright © R. Mitchel Beauchamp and CNPS

Plant type: Perennial herb
Size: 2 - 3 ft tall
Flower Color: Yellow, Green
Wildlife supported:

Flame Ragwort

Packera greenei

Calscape.org

Copyright © 2012 Aaron Arthur

Plant type: Perennial herb
Size: 8 - 12 in tall
Flower Color: Orange
Wildlife supported:

Western Ragwort

Packera hesperia

Calscape.org

Copyright © 2008 Keir Morse

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

Rayless Mountain Ragwort

Packera indecora

Calscape.org

Copyright © 2013 Kirsten Bovee

Plant type: Perennial herb
Size: 4 in tall
Flower Color: Orange
Wildlife supported:

Tehachapi Ragwort

Packera ionophylla

Calscape.org

Copyright © University and Jepson Herbaria

Plant type: Perennial herb
Size: 1 - 2 ft tall
Flower Color: Yellow
Wildlife supported:

Layne's Ragwort

Packera layneae

Calscape.org

Copyright © University and Jepson Herbaria

Plant type: Perennial herb
Size: 2 ft tall
Flower Color: Yellow
Wildlife supported:

Siskiyou Mountains Ragwort

Packera macounii

Calscape.org

Copyright © University and Jepson Herbaria

Plant type: Perennial herb
Size: 1 - 2 ft tall
Flower Color: Yellow
Wildlife supported:

Lobeleaf Groundsel

Packera multilobata

Calscape.org

Copyright © 2007 Steve Matson

Plant type: Perennial herb
Size: 2 ft tall
Flower Color: Yellow, Green
Wildlife supported:

Alpine Groundsel

Packera pauciflora

Calscape.org

Copyright © 2009 Keir Morse

Plant type: Perennial herb
Size: 2 ft tall
Flower Color: Yellow
Wildlife supported: