Pseudognaphalium luteoalbum |
Pseudognaphalium stramineum |
|
---|---|---|
weedy cudweed |
cotton batting cudweed, cotton batting plant |
|
Habit | Plants annual, 1.5–4 dm. | Plants annual or biennial, 1–8 dm. |
Stems | floccose-tomentose, not glandular. |
floccose-tomentose, not glandular. |
Leaves | 1.5–5 cm, broadly or narrowly linear to oblanceolate, bases clasping, not decurrent; surfaces floccose-tomentose, not glandular. |
1.5–12 cm, linear to lanceolate or oblanceolate, bases clasping, usually not decurrent; surfaces floccose-tomentose, not glandular. |
Involucres | 3–4 mm. |
4–6 mm. |
Phyllaries | in 3–4 series, green or brownish; surfaces glabrous. |
in 4–5 series, white or brownish; surfaces glabrous. |
Fruits | 0.3–0.5 mm, brown; pappi white. |
0.4–0.6 mm, brown; pappi brownish. |
Outer florets | 130–160; corolla tips red. |
150–200; corolla tips yellow. |
Inner florets | 5–10. |
10–30. |
2n | =14, 16, 28. |
=28. |
Pseudognaphalium luteoalbum |
Pseudognaphalium stramineum |
|
Distribution | ||
Discussion | Riverbanks, roadsides, disturbed areas. Flowering May–Aug. 0–300 m. CR, Est, Sisk, WV. CA, NV, WA; southeast to FL, south to Mexico; Africa, Asia, Australia, Europe, Pacific Islands. Exotic. |
Shrublands, grasslands, ocean bluffs, beaches, dunes, marshes, riverbanks, roadsides, disturbed areas. Flowering Feb–Oct. 0–1000 m. Casc, Col, CR, ECas, Est, Lava, Sisk, WV. CA, ID, NV, WA; north to British Columbia, northeast to MT, east to NE, southeast to TX, south to Mexico, NC, NY, SC, VA; South America. Native. |
Source | Flora of Oregon, volume 2, page 327 Kenton Chambers |
Flora of Oregon, volume 2, page 327 Kenton Chambers |
Sibling taxa | ||
Synonyms | Gnaphalium chilense, Gnaphalium stramineum | |
Web links |
|
|