Eupatorium sessilifolium

Linnaeus

Sp. Pl. 2: 837. 1753.

Common names: Upland boneset
IllustratedEndemic
Treatment appears in FNA Volume 21. Treatment on page 474. Mentioned on page 463, 465, 468, 472, 473.

Perennials, 50–100+ cm. Stems (from short caudices or rhizomes) single, sparsely branched distally, 5–10+ dm, glabrous or glabrate proximally, puberulent distally (among heads). Leaves usually opposite (distal sometimes alternate); simple, sessile; blades pinnately nerved, lanceolate to oblong, 70–150+ × 10–30 mm (lengths mostly 2–5 times widths), bases truncate to somewhat rounded, margins serrate, apices narrowly acute to acuminate, faces glabrate (scattered, fine hairs), gland-dotted. Heads in corymbiform arrays. Phyllaries 10–15 in 2–3 series, elliptic to oblong, 2–5 × 0.5–1.5 mm, apices rounded to acute (not mucronate), abaxial faces villous to puberulent, gland-dotted. Florets 5; corollas 3–3.5 mm. Cypselae 2–3 mm; pappi of 30–40 bristles 3–4 mm. 2n = 20, 30.


Phenology: Flowering Jul–Sep.
Habitat: Dry, open, edges of mesic woods
Elevation: 20–300+ m

Distribution

V21-1189-distribution-map.gif

Ala., Ark., Conn., Del., Ga., Ill., Ind., Iowa, Kans., Ky., Md., Mass., Mich., Minn., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Eupatorium sessilifolium"
Kunsiri Chaw Siripun +  and Edward E. Schilling +
Linnaeus +
Upland boneset +
Ala. +, Ark. +, Conn. +, Del. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.C. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
20–300+ m +
Dry, open, edges of mesic woods +
Flowering Jul–Sep. +
Illustrated +  and Endemic +
Compositae +
Eupatorium sessilifolium +
Eupatorium +
species +