Milkweed (2)

Antelope Horns
Asclepias asperula

Family: Dogbane (Apocynaceae)
AKA: Green-flowered Milkweed, Spider Milkweed
Photo taken on: May 19, 2009
Location: White Rock Canyon, NM
Life Zones: Plains to foothills
Habitat: Dry sandy slopes

Grows to 2ft but may recline on the ground. Leaves are narrow, flowers are in a large spherical cluster. Flowers are greenish white with purplish horns.

Engelmann's Milkweed
Asclepias engelmanniana

Family: Dogbane (Apocynaceae)
AKA:
Photo taken on: June 25, 2010
Location: Bandelier National Monument, NM
Life Zones: Plains
Habitat: Dry areas, openings

Grows 3-4ft high un-branched with few, long narrow leaves. Flowers grow in round clusters in the upper portion of the stem and are greenish-white tinged with purple. Photo from SEINet.