Isocoma menziesii
Isocoma menziesii var. sedoides
coastal goldenbush, Menzies' goldenbush, Pacific jimmyweed, white flower goldenbush
Menzies' goldenbush, white flower dune goldenbush
glabrous or villlous, sometimes stipitate-glandular, not resinous.
decumbent, prostrate, or commonly pendent from cliff edges;
herbage glabrous, eglandular.
blades obovate to spatulate or oblanceolate to nearly linear, 5–40 mm, margins entire or toothed to lobed.
blades broadly obovate or spatulate to oblanceolate, 25–40 × 6–9 mm, thick-fleshy, margins coarsely serrate.
(6–)7–9 × 6–8 mm.
(15–)18–25(–28);
corollas 5–7 mm.
5–7 mm.
in dense, capitate arrays.
2.5–3.5 mm.
apices green to yellowish, not aristate, sometimes with weakly developed, non- or weakly spinulose projection, gland-dotted, without resin pockets or pockets small, weakly developed (var. decumbens and var. menziesii).
ribs not forming apical horns.
Isocoma menziesii
Isocoma menziesii var. sedoides
Varieties 5 (5 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaf blades mostly obovate, thick-fleshy, margins coarsely serrate; stems decumbent, prostrate, or pendent; herbage glabrous | var. sedoides |
1. Leaf blades obovate to oblanceolate, usually not thick-fleshy, margins entire or toothed (if so then at least stems densely villous); stems erect to ascending or decumbent; herbage glabrous, villous, tomentose, or stipitate-glandular | → 2 |
2. Herbage essentially glabrous, stipitate-glandular | → 3 |
2. Herbage glabrous, villous, or tomentose, not prominently glandular or glands beneath other vestiture | → 4 |
3. Stems prostrate to decumbent or ± erect; leaves 5–22 × 2–4 mm; heads in corymbiform to loose, paniculiform arrays; cypselae 2.3–3.6 mm; San Diego County southward | var. decumbens |
3. Stems strictly erect; leaves 20–40 × 4–10 mm; heads in corymbiform arrays; cypselae (3.8–)4.5–5 mm; San Benito and Santa Clara counties | var. diabolica |
4. Plants densely tomentose or villous | → 5 |
4. Plants glabrous or glabrate | → 6 |
5. Herbage finely and closely grayish-arachnoid-tomentose; leaf blades narrowly oblanceolate, 5–22 × 2–4 mm, margins entire or with 1–2 pairs of teeth distally | var. decumbens |
5. Herbage hirtellous, villoso-pilose, or densely gray-tomentose (hairs flattened, vitreous, long); leaf blades linear to oblanceolate or spatulate-oblong, 10–40 × 2–6(–9) mm, at least proximal leaves with toothed margins | var. vernonioides |
6. Leaf margins entire or with 1–2 pairs of teeth or shallow lobes distally | var. menziesii |
6. At least proximal leaves toothed along most margins | var. vernonioides |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
