Silphium brachiatum


Bot. Gaz. 9: 192. 1884.

Common names: Cumberland rosinweed
Treatment appears in FNA Volume 21. Treatment on page 81. Mentioned on page 77.

Plants caulescent, 65–200 cm; fibrous rooted. Stems terete, glabrous. Leaves: basal caducous; cauline opposite, petiolate; blades lanceolate, hastate, ovate, or sagittate, 1–24 × 0.5–18 cm, bases cuneate, or round (distal), or cordate, truncate, hastate, or sagittate (proximal), margins coarsely dentate or entire, apices acuminate to acute, faces sparsely hirsute, hispid, or scabrous. Phyllaries 11–15 in 2–3 series, outer reflexed or appressed, apices acute, abaxial faces scabrous. Ray florets 7–9; corollas yellow. Disc florets 20–40; corollas yellow. Cypselae 7–8 × 5–6 mm; pappi 0.5–1 mm. 2n = 14.

Phenology: Flowering late summer–fall.
Habitat: Open forests, calcareous soils, roadcuts
Elevation: 200–600 m


Selected References


Lower Taxa

... more about "Silphium brachiatum"
Jennifer A. Clevinger +
Gattinger +
Cumberland rosinweed +
Ala. +, Ga. +  and Tenn. +
200–600 m +
Open forests, calcareous soils, roadcuts +
Flowering late summer–fall. +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Silphium brachiatum +
Silphium +
species +