Isocoma pluriflora

Isocoma pluriflora, commonly called southern jimmyweed or southern goldenbush, is a North American species of flowering perennial herbs in the sunflower family. It grows in northern Mexico (Baja California Sur, Sonora, Chihuahua, Coahuila, Nuevo León) and in the southwestern and south-central United States (Arizona, New Mexico, Colorado and Texas).[2][3][4]

Isocoma pluriflora
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Isocoma
Species:
I. pluriflora
Binomial name
Isocoma pluriflora
Synonyms[1]

Isocoma pluriflora grows 1–3.5 feet (0.30–1.07 m) tall. Leaves are narrow, up to 5 cm (2 inches) long. The plant produces numerous flower heads in a cluster at the top of the stem, each head with 8-21 yellow disc flowers but no ray flowers. The species is named "pluriflora", 'many flowered', for its up to 25-50 vertical and approximately parallel stalks, tipped with yellow golden flower heads.[5]

References
  1. The Plant List, Isocoma pluriflora (Torr. & A.Gray) Greene
  2. Biota of North America Program 2014 county distribution map
  3. SEINet, Southwestern Biodiversity, Arizona chapter photos, descriptions, distribution map
  4. Nesom, G.L. 1991. Taxonomy of Isocoma (Compositae: Astereae). Phytologia 70(2): 69–114 description and discussion of I. pluriflora on pages 102-106, distribution map on page 73
  5. Flora of North America, Isocoma pluriflora (Torrey & A. Gray) Greene, 1894. Southern jimmyweed


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