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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Asclepias hallii

Asclepias hallii A. Gray

Hall's Milkweed

Asclepiadaceae (Milkweed Family)

Synonym(s):

USDA Symbol: ASHA6

USDA Native Status: L48 (N)

Perennial herb 30-60 cm tall, with reddish stems bearing few to several umbels at upper nodes. The leaves are irregularly alternate to approximate on petioles 5-11mm long. The blades are 6-13 cm long, 2-4.5 cm broad and lance shaped with a slightly rounded base and a long tapering tip. The leaves have a prominent mid-vein; with tight crinkly and matted hairs covering both stems and leaves.  Inflorescences are umbels and Individual flowers have dark pink-colored corollas with white coronas that yellow with age. The fruit is an erect pod that is 8-12 cm long and about 2 cm wide.  (Webref 23)

 

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Plant Characteristics

Duration: Perennial
Habit: Herb

Bloom Information

Bloom Color: White , Pink
Bloom Time: Jun , Jul , Aug

Distribution

USA: AZ , CO , NM , NV , UT , WY
Native Habitat: Rocky slopes or roadsides in sagebrush steppe, pinyon pine-juniper woodlands, ponderosa pine forests, and mixed conifer forests, from 6,000 to 8,000 ft (1829-2438 m). (Webref 23)

Web Reference

Webref 23 - SOUTHWEST ENVIRONMENTAL INFORMATION NETWORK, SEINet - Arizona Chapter. (2009) SOUTHWEST ENVIRONMENTAL INFORMATION NETWORK, SEINet - Arizona Chapter

Additional resources

USDA: Find Asclepias hallii in USDA Plants
FNA: Find Asclepias hallii in the Flora of North America (if available)
Google: Search Google for Asclepias hallii

Metadata

Record Modified: 2017-08-21
Research By: DEW, NH

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