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Antirrhinum multiflorum
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Withered Snapdragon
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Antirrhinum multiflorum

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About Withered Snapdragon (Antirrhinum multiflorum) Antirrhinum multiflorum (syn. Sairocarpus multiflorus) is a species of New World snapdragon known by the common name Sierra snapdragon. It is endemic to California, where it is known from the central Coast Ranges, the Transverse Ranges, and one section of the Sierra Nevada foothills. It grows on lower-elevation mountain slopes and springs up in disturbed and recently burned areas. This is an annual or perennial herb producing a hairy, erect stem which often has a woody base. It does not cling or climb like some other snapdragon species. Small, pointed leaves are arranged alternately about the tall stem. The raceme flower cluster occupies the top of the stem with many pink or red snapdragon flowers between one and two centimeters long each.
Plant Description
Plant Type
Perennial herb, Annual herb

Max. Height
1 - 2 ft (0.3 - 0.6 m)

Flower Color
Purple, Pink, Red

Flowering Season
Spring, Summer

Native Status

Natural Setting
Site Type
Rocky or disturbed places, burns


Elevation ?
59' - 7419'

Annual Precip. ?
12.4" - 55.2"

Summer Precip. ?
0.14" - 2.45"

Coldest Month ?
33.5° F - 54.4° F

Hottest Month ?
61.0° F - 80.3° F

Humidity ?
0.47 vpd - 28.97 vpd

Sunset Zones ?
7*, 8, 9, 10, 14*, 15*, 16*, 17*, 18*, 19*, 20*, 21*, 22*, 23*, 24*

Landscaping Information
Ease of Care
Moderately Easy

Propagation ?
For propagating by seed: No treatment. Germination may be poor.

Common uses
Hummingbird Gardens, Bird Gardens, Bee Gardens

Nursery Availability
Rarely Available

Other Names
Common Names
Sierra Snapdragon

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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