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San Mateo Woolly Sunflower
Eriophyllum latilobum
  
About San Mateo Woolly Sunflower (Eriophyllum latilobum) 0 Nurseries Carry This Plant Eriophyllum latilobum or San Mateo woolly sunflower is a perennial herb of sharply limited range, endemic and occurring only in the state of California, USA. This flowering plant of the Asteraceae family has been listed as an endangered species by the U. S. federal government as well as the state of California. Eriophyllum latilobum has been found in San Mateo County, San Benito County, and Napa County in habitats of oak woodland, but at altitudes only between 100 to 150 meters. Eriophyllum latilobum grows to 90 centimeters in height on erect woolly stems and produces bright yellow flowers. Latilobum means "with wide lobe," from Latin latus, "wide". Like the other 13 species members of its genus, Eriophyllum latilobum presents generally alternate leaves ranging from entire to nearly compound. The flower heads are grouped in radiate, flat-topped heads, with an hemispheric to nearly conic involucre. Phyllaries are either free, or more or less fused, their receptacle flat, but naked and conic in the center. The ray flowers (the "petals") have yellow ligules entire to lobed. Fruits are 4-angled cylindric achenes in the outer flowers, but are generally club-shaped for the inner flowers; the pappus is somewhat jagged. Eriophyllum latilobum occurs as a subshrub between 20 and 50 centimeters in height. Its thin leaves are two to six centimeters in length, and have a diamond to obovate shape; the deeply triangular-lobed leaves are smooth on the top surface. The inflorescence's peduncles are one to eight centimeters and the involucres measure four to seven millimeters.
Plant Description
Plant Type
Plant Type
Perennial herb, Shrub

Size
Size
3 ft tall

Flower Color
Flower Color
Yellow

Wildlife Supported
 


 
Butterflies & moths hosted ( 5 likely * ) SHOW ALL
*
Phalonidia latipunctana Image
Phalonidia latipunctanaPhalonidia latipunctana
*
Platyptilia williamsii Image
Platyptilia williamsiiPlatyptilia williamsii

Landscaping Information
Common uses
Common uses
Bee Gardens

Natural Setting
Climate
Climate
Annual Precipitation: 7.2" - 43.4", Summer Precipitation: 0.19" - 0.62", Coldest Month: 42.5" - 56.0", Hottest Month: 65.0" - 83.0", Humidity: 0.82" - 34.37", Elevation: 34" - 3526"


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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