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Bransford, W.D. and Dolphia

Coreopsis douglasii

Coreopsis douglasii (DC.) H.M. Hall

Douglas' Tickseed

Asteraceae (Aster Family)

Synonym(s): Coreopsis stillmanii var. jonesii, Leptosyne douglasii

USDA Symbol: CODO2

USDA Native Status: L48 (N)

A delicate, erect annual with few 2-10 in. stems, each bearing one flower head. Leaves are basal, or nearly so, and thread-like. The small, golden, daisy-like heads are less than an inch across.

From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Size Notes: Up to about 10 inches tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Yellow
Bloom Time: Mar , Apr , May

Distribution

USA: AZ , CA
Native Distribution: Inner Coast Ranges from Santa Clara to Santa Barbara Cos., CA
Native Habitat: Gravelly or rocky, open slopes from 500-2000 ft.

Growing Conditions

Light Requirement: Sun
Soil Description: Gravelly soils.

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Coreopsis douglasii in USDA Plants
FNA: Find Coreopsis douglasii in the Flora of North America (if available)
Google: Search Google for Coreopsis douglasii

Metadata

Record Modified: 2022-12-09
Research By: TWC Staff

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