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Cosmos parviflorus (Jacq.) Pers.
Southwestern Cosmos, Southwest Cosmos
Asteraceae (Aster Family)
Synonym(s): Coreopsis parviflora
USDA Symbol: copa12
USDA Native Status: L48 (N)
Southwest cosmos grows 2-3 feet tall and is branched several times in the upper half, with a single flower head, about 1 1/4 inches across, at the end of each slender, bare stem. It has 8 pale-orchid ray flowers, with a yellow center. It is an attractive flower, suitable for cultivation, and seeds are commercially available. Leaves are threadlike, divided 2 or 3 times. It is not abundant, as it is grazed by livestock.
From the Image Gallery
Plant CharacteristicsDuration: Annual
Size Notes: Up to about 3 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom InformationBloom Color: White , Pink , Violet
Bloom Time: Jun , Jul , Aug , Sep , Oct
DistributionUSA: AZ , CO , MA , MD , ME , MO , NM , RI , TX
Growing ConditionsLight Requirement: Sun
Soil Moisture: Dry
BenefitConspicuous Flowers: yes
Value to Beneficial InsectsSpecial Value to Native Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
National Wetland Indicator Status
Wildflower Center Seed BankLBJWC-PM-10 Collected 2006-09-25 in Jeff Davis County by Lady Bird Johnson Wildflower Center
BibliographyBibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller
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Additional resourcesUSDA: Find Cosmos parviflorus in USDA Plants
FNA: Find Cosmos parviflorus in the Flora of North America (if available)
Google: Search Google for Cosmos parviflorus
MetadataRecord Modified: 2014-07-21
Research By: TWC Staff