Pseudognaphalium microcephalum |
Pseudognaphalium thermale |
|
---|---|---|
slender cudweed, northwestern rabbit-tobacco |
||
Habit | Herbaceous perennials, the stems 30-70 cm. tall, loosely white-woolly, not glandular. | Herbaceous perennials, the stems 30-70 cm. tall, loosely white-woolly, not glandular. |
Leaves | Leaves alternate, oblanceolate to linear, 3-8 cm. long and 3-6 mm. wide, with a wing down the stem below each leaf 4-15 mm. long, the blades loosely white-woolly and with sessile glands. |
Leaves alternate, oblanceolate to linear, 3-8 cm. long and 3-6 mm. wide, with a wing down the stem below each leaf 4-15 mm. long, the blades loosely white-woolly and with sessile glands. |
Flowers | Heads in loose to dense, flat-topped inflorescences; involucres broadly top-shaped, 5-6 mm. long; involucral bracts in 3-4 series, usually shiny and whitish, glabrous, ovate to oblong; corollas all tubular, the outer pistillate, 35-55, the inner perfect, 4-7; pappus of capillary bristles. |
Heads in loose to dense, flat-topped inflorescences; involucres broadly top-shaped, 5-6 mm. long; involucral bracts in 3-4 series, usually shiny and whitish, glabrous, ovate to oblong; corollas all tubular, the outer pistillate, 35-55, the inner perfect, 4-7; pappus of capillary bristles. |
Fruits | Achenes rigid, roughened. |
Achenes rigid, roughened. |
Pseudognaphalium microcephalum |
Pseudognaphalium thermale |
|
Flowering time | June-September | June-September |
Habitat | Dry, sandy banks and ditches, open woods of ponderosa pine and Douglas fir, and mixed deciduous forests. | Dry, sandy banks and ditches, open woods of ponderosa pine and Douglas fir, and mixed deciduous forests. |
Distribution | Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Montana and Utah.
|
Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Montana and Utah.
|
Origin | Native | Native |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Web links |
|
|