Isocoma menziesii var. menziesii

unknown
Synonyms: Haplopappus venetus oxyphyllus Isocoma oxyphylla Isocoma veneta oxyphylla
Found in FNA Volume 20. Treatment on page 443. Mentioned on page 442.
Stems erect or spreading, rarely decumbent; herbage glabrous, eglandular. Leaf blades narrowly oblanceolate, 15–30(–40) × 3–8 mm, not thick-fleshy, margins entire or with 1–2 pairs of teeth or shallow lobes distally. Heads in corymbiform arrays. Corollas 5.5–6.5. Cypselae 2.5–3.5 mm. 2n = 24.

Phenology: Flowering (Apr–)Aug–Jan.
Habitat: Chaparral, scrub communities, dunes or sandy flats, sandy arroyos, stream banks, edges of saline ponds, rocky canyon walls
Elevation: 0–400(–1100) m

Distribution

Calif., Mexico (Baja California, Baja California Sur).

Discussion

Varieties vernonioides and menziesii appear to be completely intergrading. Glabrous or glabrate plants with entire leaves are identified as var. menziesii; those with leaves prominently toothed, as well as plants prominently villous but with more weakly toothed leaves, are identified as var. vernonioides.

References

None.

AuthorGuy L. Nesom +
Elevation0–400(–1100) m +
HabitatChaparral, scrub communities, dunes or sandy flats, sandy arroyos, stream banks, edges of saline ponds, rocky canyon walls +
IllustratorBarbara Alongi +
PhenologyFlowering (Apr–)Aug–Jan. +
ReferenceNone +
SynonymHaplopappus venetus oxyphyllus +, Isocoma oxyphylla + and Isocoma veneta oxyphylla +
Taxon nameIsocoma menziesii var. menziesii +
Taxon parentIsocoma menziesii +
Taxon rankvariety +
VolumeVolume 20 +