Antelopehorn Milkweed

Plant Profile
FYUSE 3d Image	Common Name: Antelopehorn Milkweed Other Names: Green Antelopehorn Species Name: Asclepias viridis Plant Type: Forb Family Name: Asclepiadaceae, Milkweed Family


Plant Facts
Origin	Native
Duration	Perennial
Distribution in the U.S.	Eastern half from West Virginia and Florida, and west to Nebraska, Kansas and west Texas
Distribution in Oklahoma	Eastern two-thirds of the state

ID Characteristics

Field Identification Characteristics
Vegetative
- Broad, oblong leaves with short stems
- Large solitary clustered flower heads
- Has milky sap; sometimes erect but usually leaning or along ground
Floral
- Flowers green with purple star-shaped centers
Leaf and Stem Characteristics
- Leaf Type: Simple
- Leaf Arrangement: Opposite; there is two leaves per node
- Leaf Shape: Broadly oblong or ovate to lanceolate
- Stipules: Absent
Floral Characteristics
- Petal Number: 5, fused
- Flower Color:Pale Green
- Flower Timing: May and July
- Fruit Type: Ribbed follicles


Habitat/Ecology
Soil Type	Clay and loam soils
Habitat	Open prairies, dry open woods, heavily grazed pastures and disturbed sites
Successional Stage	Mid