Difference between revisions of "Isocoma menziesii var. vernonioides"
Phytologia 70: 101. 1991.
Basionym: Isocoma vernonioides Nuttall Trans. Amer. Philos. Soc., n. s. 7: 320. 1840
Synonyms: Haplopappus venetus subsp. vernonioides (Nuttall) H. M. Hall Isocoma veneta var. vernonioides (Nuttall) Jepson
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Revision as of 20:22, 16 December 2019
Stems erect to ascending or decumbent; herbage hirtellous or villoso-pilose or densely gray-tomentose (hairs flattened, vitreous, long) to glabrate, sometimes stipitate-glandular. Leaf blades linear to oblanceolate or spatulate-oblong, 10–40 × 2–6(–9) mm, not thick-fleshy, margins of at least the proximal pinnately lobed or shallowly toothed. Heads in corymbiform arrays. Corollas 5–7 mm. Cypselae 2.3–3.6 mm. 2n = 24.
Phenology: Flowering (Apr–)Jul–Dec.
Habitat: Coastal bluffs and dunes, sandy flats, salt marsh borders, occasionally on dry slopes
Elevation: 5–400 m
Distribution
Calif., Mexico (Baja California).
Discussion
Of conservation concern.
In San Diego and Riverside counties, plants of var. vernonioides produce small leaves that are often nearly glabrous, perhaps reflecting the influence of genes from var. menziesii.
Selected References
None.
Lower Taxa
None.