Packera obovata |
Packera bernardina |
|
---|---|---|
roundleaf ragwort, running groundsel |
San Bernardino ragwort |
|
Habit | Perennials, 20–50+ cm; stoloniferous and rhizomatous (rhizomes horizontal to suberect). | Perennials, 15–30+ cm; fibrous-rooted (caudices branched, erect to suberect). |
Stems | 1 or multiple, loosely clustered, usually glabrous, sometimes tomentose proximally and in leaf axils. |
1 (per rosette, rosettes clustered), lanate-tomentose to glabrescent. |
Basal leaves | (and proximal cauline) petiolate; blades orbiculate, ovate, or obovate, 40–100+ × 20–80+ mm, bases tapering, rounded, or abruptly contracted, margins crenate, dentate, or serrate. |
(and proximal cauline) petiolate; blades obovate to broadly spatulate, 5–20+ × 10–15 mm, bases tapering, margins subentire or dentate apically (faces lanate-tomentose to glabrescent). |
Cauline leaves | gradually reduced (sessile, clasping; pinnatisect or sublyrate). |
gradually reduced (sessile; spatulate to linear, densely tomentose). |
Peduncles | bracteate, glabrous or proximally tomentose. |
bracteate, densely lanate-tomentose. |
Ray florets | 8–13(–21); corolla laminae 7–10 mm. |
8 or 13; corolla laminae 8–10 mm. |
Disc florets | 40–50+; corolla tubes 2–3 mm, limbs 2–3 mm. |
35–50+; corolla tubes 2–2.5 mm, limbs 2–2.5 mm. |
Phyllaries | 13 or 21, green (tips sometimes reddish), 3–6 mm, glabrous or floccose-tomentose proximally. |
13 or 21, green, 6–8 mm, lanate-tomentose, glabrate distally. |
Calyculi | conspicuous. |
0. |
Heads | 6–15+ in open or congested, corymbiform arrays. |
2–8+ in compact cymiform arrays. |
Cypselae | 1–1.5 mm, glabrous or hirsute on ribs; pappi 3–6 mm. |
0.75–1 mm, glabrous or hispid on ribs; pappi 3–4 mm. |
2n | = 44, 88, 90. |
= 46. |
Packera obovata |
Packera bernardina |
|
Phenology | Flowering late Feb–Apr (south), early Apr–early Jun (north). | Flowering late May–late Jul. |
Habitat | Meadows in deciduous woodlands, wet ditches, stream banks, rocky hillsides | Dry rocky slopes, duff of pine forests |
Elevation | 0–2500 m (0–8200 ft) | 1700–2200 m (5600–7200 ft) |
Distribution |
AL; AR; CT; FL; GA; IL; IN; KS; KY; LA; MA; MD; MI; MO; MS; NC; NH; NJ; NM; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WV; ON; QC; Mexico (Coahuila)
|
CA |
Discussion | Packera obovata forms relatively large, stoloniferous colonies in wet sites. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Packera bernardina is known only from the San Bernardino Mountains and has been collected most frequently from Bear Valley. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 594. | FNA vol. 20, p. 579. |
Parent taxa | Asteraceae > tribe Senecioneae > Packera | Asteraceae > tribe Senecioneae > Packera |
Sibling taxa | ||
Synonyms | Senecio obovatus, Senecio aureus var. obovatus, Senecio elliottii, Senecio elongatus, Senecio rotundus | Senecio bernardinus, Senecio bernardinus var. sparsilobatus, Senecio ionophyllus var. bernardinus, Senecio ionophyllus var. sparsilobatus, Senecio sparsilobatus |
Name authority | (Muhlenberg ex Willdenow) W. A. Weber & Á. Löve: Phytologia 49: 47. (1981) | (Greene) W. A. Weber & Á. Löve: Phytologia 49: 45. (1981) |
Web links |