Encelia resinifera

In this article, we will explore the fascinating world of Encelia resinifera, examining its impact in different contexts and how it has evolved over time. From its origin to the present, Encelia resinifera has been the subject of study, debate and controversy. Over the next few pages, we will delve into the most relevant aspects related to Encelia resinifera, analyzing its characteristics, influences and repercussions on society. Through this research, we hope to shed light on this very relevant topic and offer a comprehensive vision that allows us to understand its importance in today's world.

Encelia resinifera
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Encelia
Species:
E. resinifera
Binomial name
Encelia resinifera
Synonyms
  • Encelia frutescens var. resinosa M.E.Jones ex S.F.Blake not Encelia resinosa Brandegee

Encelia resinifera, the sticky brittlebush, is a North American species of flowering plant in the family Asteraceae.

Distribution

The species is found at elevations between 1,100–1,700 metres (3,600–5,600 ft) in the states of Arizona and Utah, in the Southwestern United States. It grows in soils derived from sandstone.

Description

Encelia resinifera is a shrub ranging in height from 40–150 centimetres (1.3–4.9 ft). The trunk, which becomes fissured with age, supports slender stems.

The leaves, which range between 10 and 25 mm in length, are ovate or lanceolate and are usually pointed at the tips.

The yellow flowerheads are borne singly, appearing between May and July (late fall to mid-summer) in their native range. These have 8-13 ray florets.

Subspecies

Two subspecies have been identified:

  • Encelia resinifera subsp. resinifera — button brittlebush.
  • Encelia resinifera subsp. tenuifolia C.Clark — found in the Grand Canyon area. It has both leaves and ray laminae with a length that is more than three times their width.

Taxonomy

Encelia resinifera was originally described as a variety of Encelia frutescens (Encelia frutescens var. resinosa) by M.E.Jones in 1913. In 1998 it was reclassified as a distinct species by Curtis Clark.

References

  1. ^ Tropicos, Encelia resinifera C. Clark
  2. ^ Biota of North America Program 2014 county distribution map
  3. ^ a b c d e f "Encelia resinifera C. Clark". Flora of North America. efloras.org. Retrieved 2008-01-18.
  4. ^ "Encelia resinifera C. Clark". PLANTS database. United States Department of Agriculture. Retrieved 2008-01-18.
  5. ^ Jones, Marcus Eugene ex Blake, Sydney Fay 1913. Proceedings of the American Academy of Arts and Sciences 49(6): 364 description in Latin, specimen listing in English
  6. ^ Clark, Curtis. 1998. Aliso 17(2): 201
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