Isocoma humilis

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Isocoma humilis
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Isocoma
Species:
I. humilis
Binomial name
Isocoma humilis
G.L.Nesom 1991 not Haplopappus humilis Reiche 1902
Synonyms [1]

Haplopappus leverichiicCronquist 1994

Isocoma humilis, common names Zion goldenbush [2] or Zion jimmyweed, [3] 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. [4] [5]

Isocoma humilis is a low, branching shrub rarely more than 8 cm (3 in) tall. Herbage is covered with copious hairs. Leaves are narrow, oblong to oblanceolate, up to 50 mm (2.0 in) long, deeply lobed. Each flower head is up to 7 mm (0.28 in) wide (fairly large for the genus) and has 19-28 disc flowers but no ray flowers. [3] [5]

Related Research Articles

<i>Isocoma</i> Genus of shrubs

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.

<i>Isocoma tenuisecta</i> Species of flowering plant

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.

<i>Isocoma acradenia</i> Species of flowering plant

Isocoma acradenia is a North American species of flowering plant in the family Asteraceae known by the common name alkali goldenbush.

<i>Isocoma menziesii</i> Species of flowering plant

Isocoma menziesii is a species of flowering plant in the family Asteraceae, known by the common name Menzies' goldenbush.

<i>Isocoma veneta</i> Species of flowering plant

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).

Ericameria obovata is a North American species of flowering shrubs in the daisy family. It has been found only in the state of Utah in the western United States.

Gamochaeta argyrinea, the silvery cudweed or silvery everlasting, is a North American species of flowering plant in the family Asteraceae. It is widespread across the southeastern and south-central United States from Delaware south to Florida and west as far as southeastern Kansas and central Texas. It has also been found in Puerto Rico and in northern California.

Grindelia arizonica, the Arizona gumweed, is a North American species of flowering plants in the family Asteraceae. It is native to the southwestern United States and northern Mexico, in the States of Coahuila, Chihuahua, Arizona, New Mexico, Utah, Texas, and Colorado.

Grindelia grandiflora, the manyray gumweed, is a North American species of flowering plants in the family Asteraceae. It is native to the south-central United States and north-central Mexico, in the states of Texas and Coahuila.

Grindelia pusilla, the little gumweed, is a North American species of flowering plants in the family Asteraceae. It is found only in the state of Texas in the south-central United States.

Grindelia scabra, the rough gumweed, is a rare North American species of flowering plants in the family Asteraceae. It has been found in northern Mexico (Coahuila) and the southwestern United States.

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 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.

References

  1. The Plant List, Isocoma humilis G.L.Nesom
  2. USDA, NRCS (n.d.). "Isocoma humilis". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 7 August 2015.
  3. 1 2 Flora of North America, Isocoma humilis G. L. Nesom, 1991. Zion jimmyweed
  4. Biota of North America Program 2014 county distribution map
  5. 1 2 Nesom, G.L. 1991. Taxonomy of Isocoma (Compositae: Astereae). Phytologia 70(2): 69–114 description of I. humilis on pages 92-93, distribution map on page 73