Packera flettii |
Packera clevelandii |
|
---|---|---|
Flett's groundsel, Flett's ragwort |
Cleveland's ragwort |
|
Habit | Perennials, 10–40+ cm; rhizomatous (rhizomes horizontal to erect). | Perennials, 30–80+ cm; taprooted (caudices suberect to erect, stout). |
Stems | 1 or 2–5 (often scapiform), loosely clustered, glabrous or leaf axils sparsely hairy. |
usually 1 (sometimes more, clustered), glaucous. |
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. |
(and proximal cauline, relatively thick and turgid) petiolate; blades lanceolate to narrowly oblanceolate, 30–100+ × 10–20+ mm, bases tapering, margins entire or subentire. |
Cauline leaves | abruptly reduced or 0 (sessile; ovate to obovate, dissected or pinnatifid). |
gradually reduced (sessile and weakly clasping; lanceolate, entire). |
Peduncles | inconspicuously bracteate or ebracteate, glabrous. |
conspicuously bracteate, glaucous. |
Ray florets | 5 or 8; corolla laminae 5–10 mm. |
8–10(–13); corolla laminae 5–7 mm. |
Disc florets | 20–30+; corolla tubes 2.5–3.5 mm, limbs 2.5–3.5 mm. |
25–40+; corolla tubes 2–3 mm, limbs 3–4 mm. |
Phyllaries | (8–)13, light green (tips yellowish), 4–7 mm, glabrous. |
(13) 21, green (tips often purple), glabrous. |
Calyculi | 0 or inconspicuous. |
conspicuous. |
Heads | 4–10+ in subumbelliform cymiform arrays. |
12–20+ in open, corymbiform arrays. |
Cypselae | 1–1.5 mm, glabrous; pappi 4–4.5 mm. |
1–1.5 mm, glabrous; pappi 5–6 mm. |
2n | = 40. |
= 46. |
Packera flettii |
Packera clevelandii |
|
Phenology | Flowering early Jul–mid Aug. | Flowering mid Jun–mid Jul. |
Habitat | Exposed slopes, rocky or gravelly soils | Rocky, serpentine soils, open, dry, shrubby areas, dry streambeds |
Elevation | 700–2000 m (2300–6600 ft) | 300–700 m (1000–2300 ft) |
Distribution |
OR; WA
|
CA
|
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. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Packera clevelandii is known only from the North Coast Ranges and foothills of the Sierra Nevada on serpentine soils in chaparral communities. It is the only Packera with subsucculent, glaucous herbage. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 587. | FNA vol. 20, p. 582. |
Parent taxa | Asteraceae > tribe Senecioneae > Packera | Asteraceae > tribe Senecioneae > Packera |
Sibling taxa | ||
Synonyms | Senecio flettii | Senecio clevelandii, Senecio clevelandii var. heterophyllus |
Name authority | (Wiegand) W. A. Weber & Á. Löve: Phytologia 49: 46. (1981) | (Greene) W. A. Weber & Á. Löve: Phytologia 49: 46. (1981) |
Web links |