Wildflowers of Southern Arizona
Dogbane (Apocynaceae) family.
[formerly Milkweed (Asclepiadaceae) family.]
The flowers are in 4 inch (10 cm) wide, axillary, umbel-like clusters. The individual flowers have the typical milkweed flower shape, 5 sepals, and 5 petals that are fringed with white hairs. The flowers are followed by elongated teardrop-shaped fruits that dry and split open to reveal brown seeds with long, silky, white hairs that help them disperse in the wind. The leaves are green, hairless, opposite, and quite variable in shape and may be narrowly to broadly lance-shaped, hastate (shaped like an arrowhead), or heart-shaped. The stems are slender, green, and twining. When damaged, the foliage exudes a milky juice.
Sabino Canyon Recreation Area
Location: Left side of main road 1/8 mile from visitor center entwined in cholla.
Molino Basin Campground before entrance
Location: North side of entrance restroom.
See SEINet Pictures and Description
See FireFly Forest Pictures and Description