Senecio californicus

de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 426. 1838.

Illustrated
Synonyms: Senecio ammophilus Greene Senecio californicus var. ammophilus Greenman Senecio coronopus
Treatment appears in FNA Volume 20. Treatment on page 561. Mentioned on page 548, 568.

Annuals, (5–)10–30(–50+) cm (taprooted). Herbage glabrous or sparsely tomentose. Stems usually single (erect), sometimes 2–6 (branching from bases, arching upward). Leaves (sometimes subsucculent) evenly distributed; ± petiolate (proximal); blades linear-lanceolate to lanceolate 2–5(–7+) × 0.5–2(–3+) cm, bases tapered, margins subpinnatifid to dentate or subentire (mid and distal leaves sessile, bases clasping). Heads usually 3–10(–20+) in open, cymiform arrays, sometimes borne singly (depauperate plants). Calyculi of 5–8+ lanceolate to lance-linear or filiform bractlets (0.5–3 mm, usually inconspicuous). Phyllaries ± 21 (sometimes fewer), 5–7(–8) mm, tips black. Ray florets ± 13; corolla laminae 8–11 mm. Cypselae hirtellous-strigose. 2n = 40.


Phenology: Flowering late winter–spring.
Habitat: Sandy, dry or drying sites, especially near coast
Elevation: 0–1200 m

Discussion

Dwarfish, subsucculent plants of Senecio californicus from near the coast have been recognized as S. ammophilus.

Selected References

None.

Lower Taxa

None.
... more about "Senecio californicus"
Theodore M. Barkley† +
de Candolle +
Calif. +  and Mexico. +
0–1200 m +
Sandy, dry or drying sites, especially near coast +
Flowering late winter–spring. +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Illustrated +
Senecio ammophilus +, Senecio californicus var. ammophilus +  and Senecio coronopus +
Senecio californicus +
species +