Senecio californicus

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Senecio californicus
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Senecioneae
Genus: Senecio
Species: S. californicus
Binomial name
Senecio californicus

Senecio californicus is a species of flowering plant in the aster family known by the common name California ragwort. [1][2] [3] [4]


This annual herb is native to Central and Southern California and Baja California. It grows in Coastal strand, Coastal sage scrub, and Chaparral habitats, often in sandy areas. [2]

It is often seen at the coast on sand dunes. It is also often found in the Peninsular Ranges, and is seen into the central/eastern Transverse Ranges. [2]


Senecio californicus grows to 10–40 centimetres (3.9–15.7 in) tall or sometimes taller, from a taproot. The stems can be solitary or grow in branching clusters. [1]

The leaves have linear or lance-shaped blades up to 7 centimeters long. They are sometimes fleshy, especially in plants that occur on the coastline. [1]

The inflorescence produces one to ten or more flower heads, which are lined with usually about 21 black-tipped phyllaries. They contain many yellow disc florets and each has usually 13 yellow ray florets about a centimeter long. [1] The bloom period is March through May. [2]

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