Eupatorium rotundifolium var. scabridum

(Elliott) A. Gray

in A. Gray et al., Syn. Fl. N. Amer. 1(2): 99. 1884.

Endemic
Basionym: Eupatorium scabridum Elliott Sketch Bot. S. Carolina 2: 299. 1823
Treatment appears in FNA Volume 21. Treatment on page 473. Mentioned on page 472.

Leaf blades 3-nerved distal to bases, 20–50 × 15–30 mm, broadest near bases, bases broadly cuneate to cuneate, margins serrate. 2n = 20, 30.


Phenology: Flowering Jul–Aug.
Habitat: Disturbed sites
Elevation: 10–100+ m

Distribution

V21-1186-distribution-map.gif

Ala., Ark., Fla., Ga., La., Miss., Mo., Okla., S.C., Tex.

Discussion

Variety scabridum includes apomictic polyploids and has been suggested to have been derived from hybridization between var. rotundifolium and Eupatorium semiserratum.

Selected References

None.

Lower Taxa

None.
Kunsiri Chaw Siripun +  and Edward E. Schilling +
(Elliott) A. Gray +
Eupatorium scabridum +
Ala. +, Ark. +, Fla. +, Ga. +, La. +, Miss. +, Mo. +, Okla. +, S.C. +  and Tex. +
10–100+ m +
Disturbed sites +
Flowering Jul–Aug. +
in A. Gray et al., Syn. Fl. N. Amer. +
Compositae +
Eupatorium rotundifolium var. scabridum +
Eupatorium rotundifolium +
variety +