Isocoma

Jimmyweed, goldenweed
Isocoma acradenia
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae[1]
Genus: Isocoma
Nutt.
Synonyms[1]

Haplopappus sect. Isocoma (Nutt.) H.M.Hall

Isocoma commonly called Jimmyweed or goldenweed,[2] is a genus of North American semi-woody shrubs in the sunflower family). It is found in the semi-arid areas of Southwestern United States and Mexico.[3][4][5]

The name of this genus is derived from the Greek for "equal hair" referring to the pappus on the seed.[2]

Isocoma species are used as food plants by the larvae of some Lepidoptera species including Schinia bicuspida (recorded on I. drummondii), Schinia erosa (feeds exclusively on I. acradenia) and Schinia tertia (recorded on I. pluriflora).

Species[1][6]
  1. Isocoma acradenia (Greene) Greene - alkali goldenbush, alkali jimmyweed - Baja California, Sonora, CA AZ NV UT
  2. Isocoma arguta Greene - Carquinez goldenbush - Solano County in California
  3. Isocoma azteca G.L.Nesom - Aztec goldenbush - AZ NM
  4. Isocoma coronopifolia (Gray) Greene - common goldenbush, goldenweed - southern Texas
  5. Isocoma drummondii (Torr. & Gray) Greene - Drummond's goldenbush, Drummond's jimmyweed - southern Texas
  6. Isocoma hartwegii (A.Gray) Greene - San Luis Potosí, Zacatecas, Guanajuato
  7. Isocoma humilis G.L.Nesom - Zion goldenbush - Utah (Kane + Washington Cos)
  8. Isocoma menziesii (Hook. & Arn.) G.L.Nesom - Menzies' goldenbush - Baja California, California
  9. Isocoma pluriflora (Torr. & Gray) Greene - rayless goldenrod, southern goldenbush, southern jimmyweed - TX NM AZ Chihuahua
  10. Isocoma rusbyi Greene - Rusby's goldenbush - AZ NM UT CO
  11. Isocoma tenuisecta Greene - burrow goldenweed, burroweed - AZ NM
  12. Isocoma tomentosa G.L.Nesom - Chihuahua
  13. Isocoma veneta (Kunth) Greene - jimmyweed - Mexico from Coahuila to Oaxaca

References

  1. ↑ 1.0 1.1 1.2 Flann, C (ed) 2009+ Global Compositae Checklist
  2. ↑ 2.0 2.1 116573 Flora of North America Vol. 20 Page 439 Jimmyweed, goldenweed, Isocoma Nuttall, Trans. Amer. Philos. Soc., n. s. 7: 320. 1840.
  3. ↑ Nuttall, Thomas. 1840. Transactions of the American Philosophical Society, new series 7: 320 in English
  4. ↑ Tropicos, Isocoma Nutt.
  5. ↑ Everitt, J.H.; Lonard, R.L.; Little, C.R. (2007). Weeds in South Texas and Northern Mexico. Lubbock: Texas Tech University Press. ISBN 0-89672-614-2
  6. ↑ Biota of North America Program 2013 county distribution maps

External links

Media related to Isocoma at Wikimedia Commons Data related to Isocoma at Wikispecies