Hymenoxys is a genus of plants in the sunflower family, native to North and South America. It was named by Alexandre Henri Gabriel de Cassini in 1828.
Tetraneuris acaulis is a North American species of flowering plants in the sunflower family. Common names include angelita daisy, stemless four-nerve daisy, stemless hymenoxys, butte marigold, and stemless rubberweed.
Tetraneuris scaposa is a North American species of flowering plant in the sunflower family. It is native to the southwestern and south-central United States and northern Mexico.
Brickellia parvula, the Mt. Davis brickellbush, is a North American species of flowering plants in the family Asteraceae. It is native to northeastern and north-central Mexico (Chihuahua) and the southwestern United States.
Erigeron versicolor is a rare North American species of flowering plant in the family Asteraceae known by the common names bald-fruit fleabane and changing fleabane. It is native to the southwestern United States and northern and central Mexico as far south as Michoacán.
Gaillardia parryi, or Parry's blanketflower, is a North American species of flowering plant in the sunflower family. It is native to the southwestern United States. Some of the populations are inside Grand Canyon National Park, others in Grand Staircase–Escalante National Monument.
Hedypnois rhagadioloides, the Cretanweed or scaly hawkbit, is a species of plant in the tribe Cichorieae within the family Asteraceae. It is native to the Mediterranean Region and neighboring areas from Canary Islands to Iran, and naturalized in Australia and in parts of the Americas.
Helianthella microcephala, common name purpledisk helianthella, is a North American plant species in the family Asteraceae. It grows in the southwestern United States, in the states of Arizona, New Mexico, Colorado, and Utah.
Helianthella parryi, common name Parry's dwarf-sunflower, is a North American plant species in the family Asteraceae. It grows in the southwestern United States, in the States of Arizona, New Mexico, Colorado, and Utah.
Helianthella uniflora, the oneflower helianthella, is a North American plant species in the family Asteraceae. It grows in the western United States and western Canada. It has been found from British Columbia south as far as northern Arizona and northern New Mexico.
Hymenopappus flavescens, the collegeflower, is a North American species of flowering plant in the daisy family.
Hymenopappus mexicanus, the Mexican woollywhite, is a North American species of flowering plant in the daisy family. It grows in northern Mexico and the southwestern United States.
Hymenopappus radiatus, the ray hymenopappus, is a North American species of flowering plant in the daisy family.
Hymenoxys brandegeei is a species of flowering plant in the daisy family known by the common names Brandegee's four-nerve daisy, Brandegee's rubberweed or western bitterweed. It is native to the states of Arizona, Colorado, and New Mexico in the southwestern United States.
Hymenoxys grandiflora is a North American species of flowering plant in the daisy family known by the common names graylocks four-nerve daisy, graylocks rubberweed, or old man of the mountain. It is native to high elevations in the Rocky Mountains of the western United States.
Tetraneuris linearifolia is a North American species of plants in the sunflower family, known by the common name fineleaf fournerved daisy. It grows in the south-central United States and northern Mexico.
Tetraneuris argentea, the perkysue, is a North American species of plants in the sunflower family. It grows in the southwestern United States, primarily in Arizona and New Mexico with additional populations in Utah, Colorado, and the Texas Panhandle.
Tetraneuris torreyana is a North American species of plants in the sunflower family, known by the common name Torrey's four-nerve daisy. It grows in the western United States, in extreme southern Montana, Arizona, New Mexico, Utah, Colorado, and Wyoming.
Tetraneuris turneri is a North American species of plants in the sunflower family, known by the common name Turner's four-nerve daisy. It has been found in the US state of Texas and in the nearby Mexican state of Coahuila.
Tetraneuris verdiensis is a rare North American species of plants in the sunflower family. It has been found in only in Yavapai County in Arizona in the southwestern United States.
