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Sea Dahlia
Leptosyne maritima
  
About Sea Dahlia (Leptosyne maritima) 9 Nurseries Carry This Plant Leptosyne maritima (Sea Dahlia or Beach Coreopsis) is a rare plant species in the Asteraceae (Sunflower) family (CNPS list 2B.2). It was formerly included in the genus Coreopsis and some sources still refer to it by that name. This species is a perennial that grows 10-40 centimeters tall but sometimes to 80 centimeters (4 to 32 inches), from a fleshy taproot. The stems are hollow, fragile and often floppy. Plants bloom in late winter to early summer, with normally one or two flower heads per stem, on 15 to 30 centimeters long peduncles, but sometimes 4 or more flowers can be found per stem. It has foliage that is lobed and mostly linear in shape with lobes that are 5-30 millimeters long and 1-2 millimeters wide. The 12-20 millimeter long flower phyllaries number 12-13, sometimes more, and they are lance-shaped. Flower heads typically have 16-21 ray florets, and the laminae are 20-35+ millimeters long. The disc corollas are 5.5-7 millimeters long. Fruits are 6-7 millimeters long and oblong-rectangular in shape. Leptosyne maritima is native to a very small area of southern California and Baja California, where it typically grows on ocean bluffs and dunes at elevations under 100 ft.
Plant Description
Plant Type
Plant Type
Anual herb, Succulent

Size
Size
0.33 - 2.6 ft tall
3 ft wide

Growth Rate
Growth Rate
Moderate

Dormancy
Dormancy
Summer Semi-Deciduous

Fragrance
Fragrance
None

Flower Color
Flower Color
Yellow

Flowering Season
Flowering Season
Spring

Wildlife Supported
 


 
Butterflies & moths hosted ( 2 likely * ) SHOW ALL

Landscaping Information
Sun
Sun
Full Sun

Moisture
Moisture
Very Low

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Cold Tolerance
Cold Tolerance
Tolerates cold to 35° F

Soil Drainage
Soil Drainage
Fast, Medium

Soil Description
Soil Description
Prefers sand or sandstone. Soil PH: 6.0 - 7.0

Common uses
Common uses
Bee Gardens

Natural Setting
Site Type
Site Type
Seabluffs and dunes of the south coast as part of coastal strand and coastal sage scrub

Climate
Climate
Annual Precipitation: 9.5" - 34.0", Summer Precipitation: 0.18" - 0.48", Coldest Month: 39.9" - 56.7", Hottest Month: 69.0" - 72.8", Humidity: 1.75" - 14.82", Elevation: 0" - 400"

Alternative Names
Botanical Names: Coreopsis maritima


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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