James D. Morefield

Diaperia verna, common names spring pygmycudweed, spring rabbit-tobacco or many-stem rabbit-tobacco, is a plant species in the sunflower family, native to northern Mexico (from Sonora to Tamaulipas) and the southern United States (from Arizona to Louisiana, with isolated populations (possibly introductions) in Alabama, Georgia, South Carolina). Diaperia verna is an herb with greenish or grayish leaves due to a coating of woolly hairs. One plant usually produces several flower heads, the corollas hidden by surrounding bracts. Varieties Diaperia verna var. drummondii (Torr. & A.Gray) Morefield

Stylocline intertexta is a species of flowering plant in the family Asteraceae known by the common names Morefield's neststraw and Mojave neststraw. It is native to the Mojave and Sonoran Deserts of California, Nevada, Utah, and Arizona, where it grows in rocky, sandy desert soils. It likely evolved as a hybrid between woollyhead neststraw (Stylocline micropoides) and baretwig neststraw (S. psilocarphoides); it is a mix of their morphological traits and it occurs alongside both of them. It reproduces itself, producing fertile offspring, and it meets other criteria for any other definition of

Stylocline citroleum is a rare species of flowering plant in the family Asteraceae known by the common name oil neststraw.

Stylocline masonii is an uncommon species of flowering plant in the family Asteraceae known by the common name Mason's neststraw.

Logfia filaginoides (formerly Filago californica), also called herba impia or cottonrose, is a small annual plant in the family Asteraceae, found in the Southwestern United States.

Ancistrocarphus keilii is a rare species of flowering plant known by the common name Santa Ynez groundstar. It is endemic to Santa Barbara County, California, where it is known only from three populations in the Santa Ynez River drainage. There were 180 individuals estimated in existence, until 2023, when a few thousand bloomed. The plant was described to science in 2004. Ancistrocarphus keilii grows in sandy soils in chaparral habitat adjacent to oak woodlands. The plant is considered to be vulnerable to extinction because of its rarity, its populations are located in habitat that is likely

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