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Stillman's Coreopsis
Leptosyne stillmanii
  
About Stillman's Coreopsis (Leptosyne stillmanii) Nurseries Show All Photos Coreopsis stillmanii is a species of flowering plant in the daisy family known by the common name Stillman's tickseed. It is endemic to California, where it grows in the Central Valley and most of the adjacent coastal and inland mountain ranges. This is an annual herb producing one or more erect stems with flower clusters growing to 30 centimeters in maximum height. The lobed, somewhat fleshy leaves are mostly located about the base of the plant and on the lower stem. The flower cluster bears a solitary flower head with a rounded involucre of green to reddish, rough-textured phyllaries. The flower head has a center of many yellow disc florets and a fringe of 5 to 8 yellow ray florets about a centimeter long on average. The fruit is an achene.
Plant Description
Plant Type
Annual herb, Succulent

Max. Height
0.16 - 1 ft (0.05 - 0.3 m)

Flower Color
Yellow

Native Status
Native

Natural Setting
Site Type
Grassy slopes

Sun
Sun

Elevation ?
40' - 6160'

Annual Precip. ?
11.1" - 40.4"

Summer Precip. ?
0.22" - 0.85"

Coldest Month ?
35.9° F - 50.6° F

Hottest Month ?
60.1° F - 77.4° F

Humidity ?
1.80 vpd - 24.82 vpd

Sunset Zones ?
7, 8*, 9*, 11, 14*, 15*, 16*, 17*, 19*, 20*, 21*, 22*, 23*, 24*

Landscaping Information
Common uses
Bee Gardens

Other Names
Botanical Names
Coreopsis stillmanii

Common Names
Stillman's Tickseed



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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