Overview

Distribution

National Distribution

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Physical Description

Morphology

Description

Perennials, 40–100 cm (caudices unknown). Herbage unevenly floccose-lanate or tomentose, glabrescent. Stems single. Leaves progressively reduced distally; petiolate; blades elliptic-ovate to lanceolate, 10–20(–30?) × 3–7+ cm, bases tapered, margins dentate to denticulate (teeth cartilaginous; mid leaves similar, sessile, smaller; distal leaves bractlike). Heads 10–20+ in loose or congested, cymiform arrays. Calyculi of 5–8+ lance-linear to filiform bractlets (lengths 1 / 3 – 7 / 8 phyllaries). Phyllaries ± 21, 7–8 mm, tips greenish. Ray florets 0. Cypselae glabrous. 2n = 40.
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G3 - Vulnerable

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Wikipedia

Senecio astephanus

Senecio astephanus is a species of flowering plant in the aster family known by the common name San Gabriel ragwort. It is endemic to California, where it is known only from the rocky slopes of the Transverse Ranges and adjacent Coast Ranges. It is a perennial herb growing up to a meter tall and producing discoid flower heads containing golden yellow florets.

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Notes

Comments

Senecio astephanus is collected infrequently.
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