Senecio sylvaticus
Senecio astephanus
heath groundsel, wood groundsel, woodland groundsel, woodland ragwort
San Gabriel ragwort
puberulent (hairs abundant, curly).
unevenly floccose-lanate or tomentose, glabrescent.
single.
single.
evenly distributed; petiolate;
blades obovate to oblong, 3–7(–12) × 1–3(–4) cm, usually 1–2-pinnate, bases tapered, ultimate margins dentate (distal leaves similar, clasping, bractlike).
progressively reduced distally; petiolate;
blades elliptic-ovate to lanceolate, 10–20(–30?) × 3–7+ cm, bases tapered, margins dentate to denticulate (teeth cartilaginous; mid leaves similar, sessile, smaller; distal leaves bractlike).
0 or 1–8+;
corolla laminae usually 1–2+ mm (barely surpassing phyllaries).
0.
± 13 (± 21), 4–7+ mm, tips greenish or minutely black.
± 21, 7–8 mm, tips greenish.
0 or of 1–5+ linear to filiform bractlets.
of 5–8+ lance-linear to filiform bractlets (lengths 1/3–7/8 phyllaries).
12–24 in corymbiform arrays.
10–20+ in loose or congested, cymiform arrays.
hairy (especially on angles).
glabrous.
= 40.
= 40.
Senecio sylvaticus
Senecio astephanus
Senecio sylvaticus is a Eurasian weed that favors cool, wet climates. It is well established in coastal areas of the Pacific Coast and in parts of Newfoundland and Quebec; elsewhere in the flora, it appears to be sporadic.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Of conservation concern.
Senecio astephanus is collected infrequently.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
Go Botany, 
LA Plants, 
MI Flora, 
PNW Herbaria 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
