Encelia densifolia explained

Encelia densifolia is a species of perennial shrub in the sunflower family commonly known as the Vizcaino encelia. This species is endemic to the Vizcaino Peninsula of Baja California Sur, Mexico.[1]

Description

Multi−branched perennial shrub, reaching 1feet-3feetft (-ft) in height. The branches are lined with dentate, triangular leaves a few centimeters long, that are light green, hairless and smooth in texture.[2]

The inflorescence is a solitary daisylike flower head 1inches-2inchesin (-in) in diameter, on a short, leaved peduncle. The head has a center of many yellow disc florets surrounded by up to 12 yellow ray florets. The involucre consists of canescent, obtuse phyllaries. It blooms in spring.

The fruit is an achene about half a centimeter long, usually lacking a pappus. The fruits have ciliate margins

Distribution

The plant is native to Baja California Sur, México, where it is known only from one small, remote arroyo in the Sierra Santa Clara on the Vizcaino Peninsula.

External links

Notes and References

  1. Rebman . Jon P. . Gibson . Judy . Rich . Karen . 15 November 2016 . Annotated Checklist of the Vascular Plants of Baja California, Mexico . Proceedings of the San Diego Society of Natural History . . 45 . 55.
  2. Fehlberg, Shannon (2007). Phylogeny and Biogeography of Encelia (Asteraceae) in the Sonoran and Peninsular Deserts Based on Multiple DNA Sequences. Systematic Botany, Vol 32, Issue 3.