Green-flowered milkweed
Antelope horns
Green-flowered milkweed
Antelope horns
Asclepias asperula
Plant type:
Forb
Lifecycle:
Perennial
Growing season:
NA
Soil
Acceptable soil conditions:
Clay,
Loam,
Silt,
Sand,
Gravel
Soil Conditions:
Location
Min elevation:
3000
Max elevation:
8000
Counties:
Apache County,
Cochise County,
Coconino County,
Gila County,
Graham County,
Greenlee County,
La Paz County,
Maricopa County,
Mohave County,
Navajo County,
Pima County,
Pinal County,
Santa Cruz County,
Yavapai County
Reproduction & Growth
Growth rate:
Moderate
Germination rate:
Fast
Establishment:
Low
Survival:
Low
Ecological
Best suited for these site conditions:
Cold
Best suited for these management goals:
Pollinator habitat
Additional Information
Warning:
toxic for some animals
Commercial availability:
Commonly available
Notes:
preferred by Monarchs; toxic to animals and humans; plant knowing that many will die
Citations:
Kaye et al 2018; Sundell 1994