Asclepias engelmanniana Woodson
Asclepiadaceae (Milkweed Family)
Synonym(s): Acerates auriculata, Asclepias auriculata
USDA Symbol: ASEN
The species of this plant is named for George Engelmann (1809-1884) who was born in Germany and settled in St. Louis, Missouri, as a young man. He was a physician and botanist, describing especially North American Abies (Firs), Agaves, Cactus (for which he described more than 108 species), Cuscuta (Dodder), Euphorbiaceae (Spurge Family), Juncus (Rushes), Juniperus (“Cedar”), Pinus (Pines), Vitis (Grapes), and Yuccas. When he died much of his collection went to Missouri Botanical Garden.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Linear
Leaf Pubescence: Glabrous
Leaf Apex: Acute
Leaf Base: Attenuate
Breeding System: Flowers Bisexual
Fruit Type: Follicle
Size Notes: One to four feet in height.
Leaf: Leaves often approximate and may appear verticillate.
Size Class: 1-3 ft. , 3-6 ft.
Bloom InformationBloom Color: Green
Bloom Time: Jul , Aug , Sep
Bloom Notes: Pale green tinged with purple
Value to Beneficial InsectsSpecial Value to Native Bees
Special Value to Bumble Bees
Special Value to Honey Bees
Supports Conservation Biological Control
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
Additional resourcesUSDA: Find Asclepias engelmanniana in USDA Plants
FNA: Find Asclepias engelmanniana in the Flora of North America (if available)
Google: Search Google for Asclepias engelmanniana
MetadataRecord Modified: 2014-10-10
Research By: TWC Staff