Paulownia tomentosa, common names princess tree, empress tree, or foxglove-tree, is a deciduous hardwood tree in the family Paulowniaceae, native to central and western China. It is an extremely fast-growing tree with seeds that disperse readily, and is a persistent exotic invasive species in North America, where it has undergone naturalisation in large areas of the Eastern US. P. tomentosa has also been introduced to Western and Central Europe, and is establishing itself as a naturalised species there as well.
Dasylirion wheeleri is a species of flowering plant in the asparagus family Asparagaceae, native to arid environments of northern Mexico, in Chihuahua and Sonora and in the southwestern United States, in the Sonoran Desert in Arizona, and also in New Mexico and Texas.
Isocoma, commonly called jimmyweed or goldenweed, is a genus of North American semi-woody shrubs in the family Asteraceae. It is found in the semi-arid areas of Southwestern United States and Mexico.
Isocoma tenuisecta, commonly called burroweed, shrine jimmyweed, or burrow goldenweed is a North American species of small, flowering perennial herbs in the family Asteraceae. It is native to Arizona, New Mexico, and Sonora.
Isocoma pluriflora, commonly called southern jimmyweed or southern goldenbush, is a North American species of flowering perennial herbs in the family Asteraceae. It grows in northern Mexico and in the southwestern and south-central United States.
Amsonia tomentosa is a species of flowering plant native to the southwestern United States and northern Mexico (Chihuahua). Its common names include woolly bluestar and gray amsonia.
Isocoma acradenia is a North American species of flowering plant in the family Asteraceae known by the common name alkali goldenbush.
Isocoma arguta is a rare species of flowering plant in the family Asteraceae known by the common name Carquinez goldenbush. It has been found only in Solano and Contra Costa Counties in California, where it grows in the Sacramento-San Joaquin River Delta. It is a resident of Suisun Marsh. It thrives on alkali flats and other mineral-rich soils.
Isocoma menziesii is a species of flowering plant in the family Asteraceae, known by the common name Menzies' goldenbush.
Isocoma veneta is a Mexican species of plants in the family Asteraceae. It is widespread across much of Mexico from Coahuila and Tamaulipas south as far as Oaxaca and Veracruz.
Isocoma azteca, common names Apache jimmyweed or Aztec goldenbush, is a plant species native to Arizona and New Mexico. It grows on sandy to clay soils, often with Atriplex sp., at elevations of 1,500–1,800 m (4,900–5,900 ft).
Helenium chihuahuense is a North American perennial plant in the sunflower family. It has been found only in the state of Chihuahua in northwestern Mexico.
Isocoma tehuacana is a rare Mexican species of plants in the family Asteraceae. It has been found only in the State of Puebla in eastern Mexico. As of 1991, it was known from only one collection made in 1841, so the species is most likely extinct.
Isocoma rusbyi, the Rusby's goldenbush, is a North American species of plants in the family Asteraceae. It has been found in the States of Arizona, Utah, New Mexico, and Colorado in the southwestern United States. Some of the populations lie inside Grand Canyon and Petrified Forest National Parks, others in the Glen Canyon National Recreation Area.
Isocoma humilis, common names Zion goldenbush or Zion jimmyweed, is a rare North American plant species in the family Asteraceae. It has been found only in southern Utah in the United States. Some of the populations lie inside Zion National Park.
Isocoma hartwegii is a Mexican plant species in the family Asteraceae. It has been found in the states of Jalisco, Zacatecas, Aguascalientes, Hidalgo, Guanajuato, and San Luis Potosí.
Isocoma gypsophila is a Mexican plant species in the family Asteraceae. It has been found in the States of Zacatecas and Nuevo León.
Isocoma felgeri is a rare Mexican plant species in the family Asteraceae. It has been found in the State of Sonora, in desert scrub near Bahía de Kino.
Isocoma drummondii, the Drummond's goldenbush, is a North American plant species in the family Asteraceae. It has been found on both sides of the Río Grande, in Tamaulipas and in southern Texas.
Isocoma coronopifolia, the common goldenbush, is a North American plant species in the family Asteraceae. It has been found on both sides of the Río Grande, in Tamaulipas, Coahuila, Nuevo León, Chihuahua, and southern Texas.
