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Baccharis vanessae
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Encinitas Baccharis
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Baccharis vanessae

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About Encinitas Baccharis (Baccharis vanessae) Baccharis vanessae is a rare California species of baccharis known by the common name Encinitas baccharis. It is native primarily to San Diego County, California, almost endemic to the county except for one population a few miles over the county line in Riverside County. It is a member of the chaparral flora. It is a federally listed threatened species. It is present in several sites in Encinitas, and it is known from other parts of the county from the coastline to the mountains on various substrates. There are perhaps 15 populations remaining, for a total of about 2000 individuals. Some of the remaining occurrences are on land which may be cleared for development. Baccharis vanessae is a sticky, glandular shrub producing dense, branching, erect stems approaching 2 meters in maximum height. The leaves are linear and up to 4. 5 centimetres (1. 8 in) long. This dioecious shrub produces male and female flower heads on different individuals. The fruit is an achene with a pappus up to a centimeter long. Fire suppression in the fire-prone chaparral habitat threaten those plants occurring near residential areas. Introduced species of plants have altered the local plant community. Some of the populations are very small, made up of just a few individuals, reducing their genetic viability.
Plant Description
Plant Type

Max. Height
6.6 ft (2 m)

Flower Color
Cream, White

Native Status
Natural Setting
Elevation ?
168' - 2952'

Annual Precip. ?
11.1" - 19.5"

Summer Precip. ?
0.25" - 0.67"

Coldest Month ?
47.3° F - 54.6° F

Hottest Month ?
69.4° F - 76.5° F

Humidity ?
1.28 vpd - 21.80 vpd

Landscaping Information
Common uses
Butterfly Gardens, Bee Gardens

Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Encinitis False Willow

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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