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California Waterleaf
Hydrophyllum occidentale
  
0 Nurseries Carry This Plant

About California Waterleaf (Hydrophyllum occidentale) 0 Nurseries Carry This Plant Hydrophyllum occidentale is a species of flowering plant in the waterleaf family known by the common name western waterleaf. It is native to the western United States from California to Idaho, where it grows in a variety of habitats from wet mountain meadows to dry chaparral slopes. This is a rhizomatous perennial herb producing a patch of leaves, most of which are made up of many pairs of oval-shaped, bluntly lobed green leaflets. These compound leaves may be up to 40 centimeters long. The plant produces erect stems branching into green to reddish-purple rough-haired, leafless peduncles bearing flower clusters. The flower cluster is a large ball of densely packed flowers. Each flower is up to a centimeter wide and bright white to lavender. It is coated in downy white hairs and has a long protruding style and usually five stamens with large purple or red anthers. The fruit is a spherical capsule containing two seeds.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
1.5 - 2 ft tall

Form
Form
Upright

Growth Rate
Growth Rate
Moderate

Flower Color
Flower Color
White, Lavender

Flowering Season
Flowering Season
Spring

Landscaping Information
Sun
Sun
Shade, Part Shade

Soil Description
Soil Description
Prefers loamy soils

Propagation
Propagation?
For propagating by seed: No treatment. (Emery and Frey 1971).

Sunset Zones
Sunset Zones?
1, 2, 3, 4, 5, 6, 7, 18

Natural Setting
Site Type
Site Type
Moist, slopes, meadows, streambanks

Climate
Climate
Annual Precipitation: 13.1" - 153.3", Summer Precipitation: 0.27" - 5.57", Coldest Month: 24.6" - 52.0", Hottest Month: 47.0" - 79.3", Humidity: 0.37" - 24.29", Elevation: 275" - 9481"

Alternative Names
Common Names: Western Waterleaf


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Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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