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Agoseris heterophylla var. crenulata
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Agoseris heterophylla
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Annual Agoseris
( Agoseris heterophylla )
Agoseris heterophylla
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Annual Agoseris (Agoseris heterophylla)
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Agoseris heterophylla
is a liguliferous species in the Asteraceae or sunflower family known by the common name annual agoseris or mountain dandelion. It is widespread in mostly drier regions of western North America from British Columbia to Baja California. This is an annual herb producing a basal rosette of leaves. The oblanceolate leaves may be toothed, pinnatifid, or entire, and no larger than 15 cm long and 1. 5 cm wide. Often there is no stem, or a short, rudimentary stem may develop, although the plant will produce several stem-like peduncles. Each solitary flower head contains one or two rows of sharp-pointed bracts, often with purplish hairs; and a corolla of yellow ray florets, but no disc florets. The fruit is an achene which can be highly variable but typically has a long beak and a terminal pappus of white bristles.
Plant Description
Plant Type
Annual Herb
Flower Color
Yellow
Wildlife Supported
Butterflies & moths hosted ( 1
likely
* )
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*
Heliolonche modicella
Heliolonche modicella
Landscaping Information
Natural Setting
Climate
Annual Precipitation: 4.9" - 133.4", Summer Precipitation: 0.14" - 4.29", Coldest Month: 24.6" - 58.8", Hottest Month: 45.5" - 87.5", Humidity: 0.01" - 38.31", Elevation: -75" - 11310"
Alternative Names
Common Names
: Annual Goatsbeard, Mountain Dandelion
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Annual Agoseris
Agoseris heterophylla
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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