Packera obovata

Perennials, 20–50+ cm; stoloniferous and rhizomatous (rhizomes horizontal to suberect). Stems 1 or multiple, loosely clustered, usually glabrous, sometimes tomentose proximally and in leaf axils. 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. Cauline leaves gradually reduced (sessile, clasping; pinnatisect or sublyrate). Heads 6–15+ in open or congested, corymbiform arrays. Peduncles bracteate, glabrous or proximally tomentose. Calyculi conspicuous. Phyllaries 13 or 21, green (tips sometimes reddish), 3–6 mm, glabrous or floccose-tomentose proximally. Ray florets 8–13(–21); corolla laminae 7–10 mm. Disc florets 40–50+; corolla tubes 2–3 mm, limbs 2–3 mm. Cypselae 1–1.5 mm, glabrous or hirsute on ribs; pappi 3–6 mm. 2n = 44, 88, 90.

Phenology: Flowering late Feb–Apr (south), early Apr–early Jun (north).
Habitat: Meadows in deciduous woodlands, wet ditches, stream banks, rocky hillsides
Elevation: 0–2500 m

Distribution

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• Legacy Map

Ont., Que., Ala., Ark., Conn., Fla., Ga., Ill., Ind., Kans., Ky., La., Md., Mass., Mich., Miss., Mo., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va., Mexico (Coahuila).

Discussion

Packera obovata forms relatively large, stoloniferous colonies in wet sites.

Selected References

None.

Lower Taxa

None.