Isocoma menziesii var. sedoides

(Greene) G. L. Nesom

Phytologia70: 99. 1991

Synonyms: Haplopappus venetus sedoides Isocoma veneta sedoides
Basionyms: Bigelowia veneta sedoides
Found 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.



AuthorGuy L. Nesom +
BasionymBigelowia veneta sedoides +
Elevation0–20 m +
HabitatDunes, talus slopes, cliff edges, coastal scrub +
IllustratorBarbara Alongi +
PhenologyFlowering (Apr–)Jun–Dec. +
ReferenceNone +
SynonymHaplopappus venetus sedoides + and Isocoma veneta sedoides +
Taxon nameIsocoma menziesii var. sedoides +
Taxon parentIsocoma menziesii +
Taxon rankvariety +
VolumeVolume 20 +