Taraxacum officinale
Taraxacum trigonolobum
common dandelion
glabrous or sparsely villous; hollow.
oblanceolate to obovate, 4–45 × 1–10 cm;
margins toothed to lobed;
surfaces glabrous or lightly villous;
petioles narrowly winged.
12–25 mm;
surfaces glabrous.
20–80+;
ligules 15–30 mm, yellow.
13–18; outer reflexed; < inner; without projections at tips.
bodies 2.5–4 mm, tan to brown; olive, or gray;
ribs 4–12;
beaks 7–9 mm;
pappus bristles white.
=16, 24, 32, 40.
Taraxacum officinale
Taraxacum trigonolobum
Disturbed areas, riverbanks, pastures, forests, roadsides, lawns. Flowering Mar–Sep. 0–2800 m. All ecoregions except Col. CA, ID, NV, WA; worldwide. Exotic.
Kenton Chambers
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
PNW Herbaria, Turner Photog. 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
