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Lewis, A. D.
Asclepias obovata Elliot
Synonyms: Asclepias viridiflora var. obovata
USDA Symbol: ASOB
USDA Native Status: Native to U.S.
Perennial herb 6 to 3 in height. Leaves opposite, 1 to 3 in length, 1/2 to 1-1/2 in width, variable, short petiolate. Stems and leaves soft tomentulose. Inflorescenses terminal and axillary, many-flowered. Flowers greenish yellow with orangish tinge. Habitat sandy soils in pine and oak woods; occasionally in field and on roadsides.
Plant CharacteristicsDuration: Perennial Habit: Herb Leaf Arrangement: Opposite Leaf Complexity: Simple Leaf Shape: Obovate Leaf Pubescence:
Tomentose Leaf Margin: Entire Leaf Apex: Acute Leaf Base:
Rounded , Truncate Leaf Texture:
Leathery Breeding System:
Flowers Bisexual Inflorescence: Cyme
, Umbel Size Notes:
Plant 6 to 3 in height. Follicle to 12+ cm in length. Flower:
12+ cm. Size Class:
0-1 ft. , 1-3 ft.
Bloom InformationBloom Color: Orange , Yellow , Green
Bloom Time: May , Jun , Jul , Aug , Sep
AL , AR , FL , GA , LA , MS , OK , SC , TX Native Distribution:
SC south to FL and west to TX, AR and OK. Native Habitat:
Sandy soils in pine and oak forests. USDA Native Status: L48(N)
Growing ConditionsWater Use: Medium
Light Requirement: Part Shade , Shade
Soil Moisture: Dry , Moist
Soil pH: Acidic (pH<6.8)
Drought Tolerance: Medium
Heat Tolerant: yes
Soil Description: Sandy soils.
BenefitWarning: All parts poisonous.
Conspicuous Flowers: yes
Interesting Foliage: yes
Larval Host: Monarch butterfly larval food.
Nectar Source: yes
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Record Modified: 2009-09-14
Research By: JAM