Packera quercetorum |
Packera macounii |
|
---|---|---|
long-rayed groundsel, Puget butterweed, Siskiyou Mountains ragwort |
||
Habit | Plants perennial, 30–40+ cm; taprooted, caudices ± branching, becoming rhizomatous. | |
Stems | 1, sparsely to densely tomentose or glabrate. |
|
Basal leaves | blades narrowly lanceolate to oblanceolate, bases tapering; margins entire or shallowly toothed, slightly revolute, petiolate. |
|
Cauline leaves | gradually reduced; upper bract-like; lower petiolate; upper sessile. |
|
Involucres | cylindric to narrowly campanulate. |
|
Ray florets | 8(13); rays 8–10+ mm. |
|
Disc florets | 30–40+; corolla tubes 2.5–3.5 mm; limbs 2–3 mm. |
|
Phyllaries | 13 or 21, 5–7+ mm, green; surfaces glabrous. |
|
Calyculi | 0 or inconspicuous. |
|
Fruits | 3–4.5 mm, glabrous; pappi 4–5 mm. |
|
Heads | 6–15+; in corymb-like arrays; peduncles sparsely tomentose to glabrate; bracts absent or inconspicuous. |
|
2n | =46, 92. |
|
Packera quercetorum |
Packera macounii |
|
Distribution | ||
Discussion | Streams, roadsides, clearings, disturbed areas, coniferous woodlands in rocky soils, serpentine. Flowering Apr–Jul. 50–1400 m. Casc, CR, Est, Lava, Sisk, WV. CA, WA; north to British Columbia. Native. Packera macounii is similar in overall morphology to P. cana. However, its leaves are narrower and commonly revolute. Although it is often cited as being collected on serpentine soils, it is not restricted to them. |
|
Source | Flora of Oregon, volume 2, page 323 Debra Trock |
|
Sibling taxa | ||
Synonyms | Senecio fastigiatus, Senecio macounii | |
Web links |
|