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Round Leaved Boykinia
Boykinia rotundifolia
  
About Round Leaved Boykinia (Boykinia rotundifolia) 1 Nurseries Carry This Plant Boykinia rotundifolia is an uncommon species of flowering plant in the saxifrage family known by the common name Roundleafed Brookfoam. It is endemic to southern California from Ventura to San Diego Counties, where it grows in shady forested areas near streams in the mountains below 6,000 ft. It is a rhizomatous perennial herb producing leaves with blades up to 30 centimeters long, borne on petioles up to 18 centimeters in length. Each leaf has several rounded lobes with dull teeth along the edges. The flower cluster reaches up to a meter tall on a thin stem. It bears a dense array of many small white flowers, each with five tiny pointed sepals and five larger oval petals.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
1 - 3.3 ft tall
1 ft wide

Dormancy
Dormancy
Summer Semi-Deciduous

Flower Color
Flower Color
White

Flowering Season
Flowering Season
Spring, Summer

Landscaping Information
Sun
Sun
Part Shade

Moisture
Moisture
Moderate - High

Summer Irrigation
Summer Irrigation
Max 1x / month once established

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Cold Tolerance
Cold Tolerance
Tolerates cold to 15° F

Soil Drainage
Soil Drainage
Slow

Soil Description
Soil Description
Tolerates a variety of soils as long as adequate moisture is present. Soil PH: 5.0 - 7.5

Common uses
Common uses
Groundcovers

Companion Plants
Companion Plants
This plant is best used in a damp shade garden with similar plants such as Heuchera sp., ferns, Meadow Rue (Thalictrum sp.), and Western Dichondra (Dichondra occidentalis)

Propagation
Propagation?
For propagating by seed: No treatment.

Sunset Zones
Sunset Zones?
4*, 5*, 6, 7, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

Natural Setting
Site Type
Site Type
Streambanks, seeps, and other damp locations

Climate
Climate
Annual Precipitation: 5.0" - 44.2", Summer Precipitation: 0.16" - 2.56", Coldest Month: 33.5" - 55.3", Hottest Month: 60.3" - 84.0", Humidity: 2.29" - 34.80", Elevation: 432" - 7419"

Alternative Names
Common Names: Roundleaf Brookfoam, Roundleafed Brookfoam


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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