Asclepias rubra L.
Red Milkweed, Tall Pink Bog Milkweed
Asclepiadaceae (Milkweed Family)
Synonym(s): Asclepias laurifolia
USDA Symbol: asru
Herbaceous perennial with narrow, mostly glabrous stems 16" to 40" in height. Leaves opposite, ovate or lanceolate, 5-15 cm in length; sessile or nearly so. Inflorescences terminal and axillary from upper leaf nodes in many-flowered umbels. Flowers showy; color varies from lavender to pink to dull-red. Follicles 8-12cm long.
Endangered in MD; Extirpated in PA.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Arrangement: Opposite
Leaf Complexity: Simple
Leaf Shape: Lanceolate , Ovate
Leaf Pubescence: Glabrous
Leaf Margin: Entire
Leaf Apex: Acuminate , Acute
Leaf Base: Cordate , Rounded
Leaf Texture: Leathery
Breeding System: Flowers Bisexual
Inflorescence: Axillary , Cyme , Terminal , Umbel
Size Notes: Plant 16-40" in height.
Fruit: Follicle 8-12 cm in length.
Size Class: 1-3 ft.
Bloom InformationBloom Color: Red , Pink , Purple
Bloom Time: May , Jun , Jul , Aug
Bloom Notes: Blooms late spring to summer.
DistributionUSA: AL , AR , DE , FL , GA , LA , MD , MS , NC , NJ , NY , PA , SC , TX , VA
Native Distribution: NY south to FL, west to AR and TX.
Native Habitat: Bogs and marshy area in meadows and pine barrens.
Growing ConditionsWater Use: High
Light Requirement: Sun , Part Shade
Soil Moisture: Moist , Wet
Soil pH: Acidic (pH<6.8)
Drought Tolerance: Low
Heat Tolerant: yes
Soil Description: Moist to wet acidic soils.
BenefitUse Ornamental: Useful for wetland gardens or landscapes with permanently moist soils.
Use Wildlife: Larval food for Monarch butterfly.
Use Food: Poisonous.
Warning: All parts poisonous.
Conspicuous Flowers: yes
Larval Host: Monarch butterfly.
Nectar Source: yes
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.
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National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Natural Biodiversity - Johnstown, PA
BibliographyBibref 293 - Manual of the Vascular Plants of Texas (1979) Correll, D. S. & M. C. Johnston
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Additional resourcesUSDA: Find Asclepias rubra in USDA Plants
FNA: Find Asclepias rubra in the Flora of North America (if available)
Google: Search Google for Asclepias rubra
MetadataRecord Modified: 2014-11-02
Research By: JAM