Crow-poison (Nothoscordum bivalve) springs up 4 to 12 inches tall in loose colonies, often on damp ground. A harbinger of spring, it produces creamy-white flowers with six tepals, each often bearing a prominent stripe on the outside.
Dodder (Cuscuta spp.) preys on other plants as sources of food. Because these plants don't rely upon photosynthesis they are not green. Their many slender, twining strands are yellow or yellow-orange, and they grow in dense masses that can measure several feet across and that remind some people of angel hair pasta.
Frog fruit (Phyla nodiflora) belongs to the verbena family and grows across much of the southernmost United States.
After emerging 2 to 3 inches above the earth in the spring, Heller's plantain (Plantago helleri) gives rise to a flower stem covered with long hairs that makes an upside-down U and terminates in a bud with an even denser growth of hair.
Silverpuff (Chaptalia texana) has a drooping posture. It is found from southern New Mexico to south-central Texas.
Silverpuff flower heads often don't open fully, but this view shows how one looks when it does open.
Tetraneuris scaposa produces buds with an outer surface that — like the stalk rising as much as 18 inches up to it — is covered with inviting silky down. Each bud eventually opens to reveal a cup of densely packed, richly yellow disk flowers ringed by the irregular silvery hairs of the bud's outer covering.
When Tetraneuris linearifolia ages, its ray flowers often turn a papery white and fold down under the flower head. At the same time, the disk flowers retain their rich color and have a tendency to bulge upward.