Isocoma menziesii var. sedoides

(Greene) G. L. Nesom
Phytologia 70: 99. 1991.
Basionym: Bigelowia veneta var. sedoides Greene Bull. Calif. Acad. Sci. 2: 400. 1887 (as Bigelovia)
Synonyms: Haplopappus venetus var. sedoides (Greene) Munz Isocoma veneta var. sedoides (Greene) Jepson
Treatment appears in FNA Volume 20. Treatment on page 443. Mentioned on page 442.

Stems decumbent, prostrate, or commonly pendent from cliff edges; herbage glabrous, eglandular. Leaf blades broadly obovate or spatulate to oblanceolate, 25–40 × 6–9 mm, thick-fleshy, margins coarsely serrate. Heads in dense, capitate arrays. Corollas 5–7 mm. Cypselae 2.5–3.5 mm.

Phenology: Flowering (Apr–)Jun–Dec.
Habitat: Dunes, talus slopes, cliff edges, coastal scrub
Elevation: 0–20 m



Calif., Mexico (Baja California).


The coastal habitats, low habit, and broad, fleshy-thick leaves of var. sedoides are characteristic. Intermediates with var. vernonioides have been collected at every locality where var. sedoides occurs, and some identifications will have to be made arbitrarily. H. M. Hall (1928) treated var. sedoides within var. vernonioides.

Selected References


Lower Taxa


Guy L. Nesom +
(Greene) G. L. Nesom +
Bigelowia veneta var. sedoides +
Calif. +  and Mexico (Baja California). +
0–20 m +
Dunes, talus slopes, cliff edges, coastal scrub +
Flowering (Apr–)Jun–Dec. +
Haplopappus venetus var. sedoides +  and Isocoma veneta var. sedoides +
Isocoma menziesii var. sedoides +
Isocoma menziesii +
variety +