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Blennosperma bakeri

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About Sonoma Sunshine (Blennosperma bakeri) Blennosperma bakeri is a rare species of flowering plant in the daisy family known by the common names Baker's stickyseed and Sonoma sunshine. It is endemic to Sonoma County, California, where it is known from a few remaining vernal pool sites on the wet grasslands of the Laguna de Santa Rosa and Sonoma Valley. It is a federally listed endangered species. It is found alongside other rare vernal pool plants including the Sebastopol meadowfoam, Limnanthes vinculans, and Burke's goldfields, Lasthenia burkei. Threats to its survival include the alteration of its habitat for development, road maintenance, grazing, and agriculture, as well as collecting, herbivory by thrips, and invasive plants. This is a small annual herb under 30 centimeters tall. The leaves are 5 to 15 centimeters long and linear in shape with lobes near the ends. The inflorescence bears a few flower heads. Each head contains a center of yellow disc florets, some of which bear prominent white stigmas and white pollen. Around the edge of the head is a fringe of yellow ray florets with red stigmas. The fruit is an achene a few millimeters long which becomes sticky when wet.
Plant Description
Plant Type
Annual herb

Max. Height
11.8 in (30 cm)

Flower Color

Native Status
Natural Setting
Elevation ?
-2' - 1096'

Annual Precip. ?
18.3" - 55.4"

Summer Precip. ?
0.24" - 0.64"

Coldest Month ?
45.2° F - 48.2° F

Hottest Month ?
66.9° F - 75.1° F

Humidity ?
0.44 vpd - 22.15 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Baker's Stickyseed

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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