Packera flettii

(Wiegand) W. A. Weber & Á. Löve

Phytologia 49: 46. 1981.

Common names: Flett’s ragwort
Endemic
Basionym: Senecio flettii Wiegand Bull. Torrey Bot. Club 26: 137, plate 355, fig. 2. 1899
Treatment appears in FNA Volume 20. Treatment on page 587. Mentioned on page 573, 575.

Perennials, 10–40+ cm; rhizomatous (rhizomes horizontal to erect). Stems 1 or 2–5 (often scapiform), loosely clustered, glabrous or leaf-axils sparsely hairy. Basal leaves (and proximal cauline) petiolate; blades obovate to ovate or sublyrate, 30–60+ × 10–40+ mm, bases tapering, margins deeply dissected or pinnatifid, ultimate margins crenate to crenate-dentate. Cauline leaves abruptly reduced or 0 (sessile; ovate to obovate, dissected or pinnatifid). Heads 4–10+ in subumbelliform cymiform arrays. Peduncles inconspicuously bracteate or ebracteate, glabrous. Calyculi 0 or inconspicuous. Phyllaries (8–) 13, light green (tips yellowish), 4–7 mm, glabrous. Ray-florets 5 or 8; corolla laminae 5–10 mm. Disc-florets 20–30+; corolla-tubes 2.5–3.5 mm, limbs 2.5–3.5 mm. Cypselae 1–1.5 mm, glabrous; pappi 4–4.5 mm. 2n = 40.


Phenology: Flowering early Jul–mid Aug.
Habitat: Exposed slopes, rocky or gravelly soils
Elevation: 700–2000 m

Discussion

Packera flettii is known from the Olympic Mountains and near Mt. Rainer in Washington and coastal mountains of Clatsop County, Oregon. It has a chromosome number unique in the genus and is not known to hybridize with other species of Packera.

Selected References

None.

Lower Taxa

None.
... more about "Packera flettii"
not tailed +, rounded +  and obtuse +
papillate +
truncate-penicillate +
scarious +
usually ovate +  and lance-linear +
cymiform +  and subumbelliform +
indeterminate +  and determinate +
Debra K. Trock +
(Wiegand) W. A. Weber & Á. Löve +
tapering +
Senecio flettii +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
obovate;ovate or sublyrate +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
winged;nerved;ribbed +
inconspicuous +
Flett’s ragwort +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
pale-yellow +  and deep orange-red +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
cylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Oreg. +  and Wash. +
700–2000 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Exposed slopes, rocky or gravelly soils +
discoid +  and radiate +
in compact or congested to open corymbiform cymiform or subumbelliform , , , arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate;cylindric +
sessile +  and petiolate +
cauline +  and basal +
erect;recurved +
deltate +
dentate to pinnatifid +  and entire +
pinnatifid +  and dissected +
2-carpellate +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
ebracteate +  and bracteate +
Flowering early Jul–mid Aug. +
linear +  and ensiform +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
bearing subulate enations +, hairy +  and bristly +
conic;usually flat;convex +
exalbuminous +
prostrate +  and ascending +
2 +  and 5 +
appendaged +  and truncate +
papillate +
Compositae +
Packera flettii +
species +
campanulate +
crenate +  and crenate-dentate +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
vine +, tree +, shrub +  and subshrub +
23 +, 22 +  and 20 +