Classification Hierarchy
Kingdom Plantae
Subkingdom Tracheophyta
Superdivision Spermatophyta
Division Magnoliophyta
Class Magnoliopsida
Subclass Asteridae
Order Gentianales
Family Apocynaceae
Genus Asclepias
Species Asclepias_stenophylla
slimleaf milkweed

Date: XXXXXXXX 2010. Location: XXXXXXXXX (map)


Scientific Name: Asclepias stenophylla (Asclepias named for Asclepius: stenophylla = narrow leafed)

Common Name: Slimleaf milkweed

Origin: Native

Notes: The plant stands about 2 feet high on a single slender stem. It is rated as Endangered in Iowa. Only a few specimens have been found in western Iowa. It's main range is to the south and west of Iowa. It is very similar in appearance to A. engelmanniana.

Additional references: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.

Field Marks for Identification:

Flowers: greenish-white, lobed hoods, inflorescences in upper leaf axils

Leaves: alternate to sub-opposite; sessile to short petiolate, slender linear about 6 inches long.

Glossaries of botanical terms: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

slimleaf milkweed-1 slimleaf milkweed-2 slimleaf milkweed-3 slimleaf milkweed-4