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.

Phenology: Flowering spring.
Habitat: Steep, rocky slopes
Elevation: 400–1500 m

Distribution

• Generated Map
• Legacy Map

Calif.

Discussion

Of conservation concern.

Senecio astephanus is collected infrequently.

Selected References

None.

Lower Taxa

None.