About Haploesthes greggii A.Gray
Haploesthes greggii, commonly known as false broomweed, is a North American flowering plant species belonging to the family Asteraceae. It can be found growing in northeastern Mexico, specifically in the states of Chihuahua, Coahuila, and Nuevo León, as well as in south-central and southwestern United States, in Texas, Oklahoma, and New Mexico. There are historical reports of this species occurring in Colorado and Kansas, but it is very likely extirpated from these two states. The genus name is sometimes written as Haploësthes, with two dots over the first e to mark that the o and e should be pronounced as separate syllables. This diacritic marking is optional, and both spellings are equally acceptable. Haploesthes greggii is a somewhat succulent perennial herb or subshrub that grows up to 80 cm (31 in) tall. Its leaves are very narrow, and sometimes are thread-like. The plant produces numerous yellow flower heads arranged in flat-topped clusters. Each flower head contains 3 to 6 ray flowers and 18 to 100 disc flowers. There are two accepted varieties of this species: Haploesthes greggii var. greggii and Haploesthes greggii var. texana (J.M.Coult.) I.M.Johnst.