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Marcus, Joseph A.
Simsia calva (Engelm. & A. Gray) A. Gray
Awnless bush sunflower, Bush sunflower
USDA Symbol: SICA7
USDA Native Status: L48 (N)
Plant CharacteristicsDuration: Perennial Habit: Herb Leaf Retention: Deciduous Flower:
Fruit: Size Class:
Bloom InformationBloom Color: Orange , Yellow
Bloom Time: May , Jun , Jul , Aug , Sep , Oct , Nov
, 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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Herbarium Specimen(s)NPSOT 0627
Collected Nov 6, 1993 in Bexar County by Mike FoxNPSOT 0710
Collected Apr 1, 1994 in Bexar County by Mike Fox
Record Last Modified: 2009-05-14
Research By: TWC Staff