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Encelia densifolia

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Encelia densifolia
Encelia densifolia in habitat
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Encelia
Species:
E. densifolia
Binomial name
Encelia densifolia
C.Clark & Kyhos

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

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Multi−branched perennial shrub, reaching 1–3 feet (0.30–0.91 m) 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 1–2 inches (2.5–5.1 cm) 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.[2]

The fruit is an achene about half a centimeter long, usually lacking a pappus. The fruits have ciliate margins[2]

Distribution

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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.[1]

References

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  1. ^ a b Rebman, Jon P.; Gibson, Judy; Rich, Karen (15 November 2016). "Annotated Checklist of the Vascular Plants of Baja California, Mexico" (PDF). Proceedings of the San Diego Society of Natural History. 45. San Diego Natural History Museum: 55.
  2. ^ a b c 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.
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