Ericameria paniculata explained

Ericameria paniculata (formerly Chrysothamnus paniculatus)[1] is a species of flowering plant in the sunflower family Asteraceae, native to thesouthwestern United States. It is an evergreen yellow-flowered desert shrub.

It is known by several common names, including black-banded rabbitbrush, Mojave rabbitbrush, and punctate rabbitbrush.[2] The stems often have black, gummy bands.[2]

Description

Ericameria paniculata is a branching shrub reaching up to 2 meters (80 inches) tall. The spreading or erect stems are glandular and resinous and are often banded or splotched with black from a smut fungus Puccinia splendens.[3] The glandular leaves are filiform (thread-shaped or narrowly oblanceolate) up to 3.5 centimeters (1.4 inches) in length.

The inflorescence is an array of small, yellow flower heads, each of which contains 5 to 8 disc florets but no ray florets. The fruit is up to a centimeter (0.4 inches) long including its long pappus. They are wind-dispersed.[4] [5]

It flowers from June to December.[2]

Range and habitat

Ericameria paniculata is native to the deserts of Arizona, Nevada, southern California, southwestern Utah. It is particularly common in the Mojave Desert.[6] [7] [8]

It is found in a great variety of habitats, including disturbed areas such as roadsides. It tolerates poor soils. Its companions may include Larrea tridentata (creosote), Yucca brevifolia (Joshua tree), Baccharis, Hymenoclea salsola (white burrobush), Atriplex polycarpa (desert saltbush), and Acacia greggii (catclaw acacia).[6] [4]

External links

Notes and References

  1. Mojave Desert Wildflowers, Pam MacKay, 2nd Ed. 2013, p. 314
  2. Mojave Desert Wildflowers, Pam MacKay, 2nd Ed. 2013, p. 199
  3. Web site: Mohave rabbitbrush . Bird and Hike . 10 October 2019.
  4. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066531 Ericameria paniculata, Mojave or punctate rabbitbrush
  5. http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,931,946 Chrysothamnus paniculatus.
  6. Tesky, Julie L. 1993. Chrysothamnus paniculatus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory.
  7. http://bonap.net/MapGallery/County/Ericameria%20paniculata.png Biota of North America Program 2014 county distribution map
  8. http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=9502 Calflora taxon report, University of California, Ericameria paniculata (A. Gray) Rydb., Mojave rabbitbrush