Advanced Search Map Locator
View Settings
Nurseries Carrying this Plant Add Current Plant To List Edit Current Plant
Show all Photos

About Calscape Nurseries
California Garden Planner Bay Area Garden Planner (NEW) Planting Guide
Butterflies My Plant Lists
Contact Calscape Donate
Tap map to see plants native to location
Order by Popularity Order by Common Name Order by Scientific Name Order by # of Butterflies Hosted
Show nursery cultivars Hide nursery cultivars
Show plants not in nurseries Hide plants not in nurseries
Grid view Text view
Two Lobed Clarkia
Clarkia biloba
About Two Lobed Clarkia (Clarkia biloba) 0 Nurseries Carry This Plant Clarkia biloba is a species of flowering plant in the evening primrose family known by the common name twolobe clarkia. It is endemic to California, where it is known from the Sierra Nevada foothills; one subspecies can also be found in the San Francisco Bay Area. It grows in chaparral and woodland habitat. It is an annual herb producing an erect stem approaching a meter in maximum height. The leaves are linear to lance-shaped and up to 6 centimeters long. Each is borne on a short petiole. The top of the erect stem is occupied by the flower cluster, which bears hanging buds above open flowers. The pink or red-purple sepals remain fused as the petals spread and emerge from one side of the bud. The petals are up to 2.5 centimeters long and pink to lavender to magenta, sometimes flecked with red. Each petal has a two-lobed tip. There are 8 stamens, some with large lavender anthers and some with smaller, paler anthers. The stigma protrudes past the stamens. There are three subspecies of this wildflower. The rarest, the Mariposa clarkia (ssp. australis), is known only from the Merced River drainage, in the Sierra foothills, where it is threatened by road maintenance and non-native plants.
Plant Description
Plant Type
Plant Type
Annual herb

3.3 ft tall

Flower Color
Flower Color
Pink, Purple, Red

Wildlife Supported

Butterflies & moths hosted ( 5 likely * ) SHOW ALL

Landscaping Information
Full Sun, Part Shade

Common uses
Common uses
Butterfly Gardens, Bee Gardens

Natural Setting
Site Type
Site Type
Dry places

Annual Precipitation: 12.3" - 66.0", Summer Precipitation: 0.20" - 1.40", Coldest Month: 29.7" - 52.0", Hottest Month: 55.4" - 79.3", Humidity: 0.93" - 24.90", Elevation: 50" - 7883"

Alternative Names
Common Names: Brandegee's Clarkia, Two-lobed Clarkia, Twolobe Clarkia

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

Sign in to your Calscape Account X

Once signed in, you'll be able to access any previously saved plant lists or create new ones.

Email Address

Sign In