Simsia calva (Engelm. & A. Gray) A. Gray
Awnless Bush Sunflower, Bush Sunflower
Asteraceae (Aster Family)
USDA Symbol: SICA7
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Retention: Deciduous
Size Notes: Up to about 5 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom InformationBloom Color: Orange , Yellow
Bloom Time: Jan , Feb , Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov , Dec
Bloom Notes: Petals often brown- or purple-lined, or wholly brown or purple abaxially.
DistributionUSA: NM , TX
Native Distribution: Central Texas west to southeastern New Mexico, south to Nuevo Leon in northeastern Mexico
Native Habitat: Frequent in all but the northeastern region of Texas on dry uplands. Well-drained limestone and caliche.
Growing ConditionsLight Requirement: Sun
Soil Moisture: Dry
Conditions Comments: Bush sunflower is an extremely drought tolerant plant for a chalk prairie. It provides nectar for butterflies and seeds for songbirds.
BenefitConspicuous Flowers: yes
Attracts: Birds , Butterflies
Nectar Source: yes
Deer Resistant: Minimal
PropagationCommercially Avail: yes
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From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Fredericksburg Nature Center - Fredericksburg, TX
Lady Bird Johnson Wildflower Center - Austin, TX
NPSOT - Austin Chapter - Austin, TX
National Butterfly Center - Mission, TX
NPSOT - Williamson County Chapter - Georgetown, TX
Herbarium Specimen(s)NPSOT 0710 Collected Apr 1, 1994 in Bexar County by Mike Fox
NPSOT 0627 Collected Nov 6, 1993 in Bexar County by Mike Fox
BibliographyBibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.
Search More Titles in Bibliography
Web ReferenceWebref 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 resourcesUSDA: Find Simsia calva in USDA Plants
FNA: Find Simsia calva in the Flora of North America (if available)
Google: Search Google for Simsia calva
MetadataRecord Modified: 2023-01-16
Research By: TWC Staff