Difference between revisions of "Silphium wasiotense"
Sida 13: 285, figs. 1, 2e–h, 3. 1989.
Common names: Appalachian rosinweed
Endemic
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|publication year=1989 | |publication year=1989 | ||
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | ||
Latest revision as of 20:10, 5 November 2020
Plants caulescent, 60–150 cm; fibrous rooted. Stems terete, hispid (never glaucous). Leaves: basal persistent, petiolate; cauline opposite, petiolate (proximal) or sessile (distal); blades cordate, deltate, lanceolate, or ovate, 1–28 × 1.5–20 cm, sometimes (proximal) lobed, bases auriculate, cordate, or truncate (proximal and distal), ultimate margins toothed or entire, apices acute to acuminate, faces hispid. Phyllaries 12–14 in 2–3 series, outer reflexed, apices acute to obtuse, abaxial faces hispid. Ray florets 6–14; corollas yellow. Disc florets 30–45; corollas yellow. Cypselae 4–8 × 4-6 mm; pappi 0.5–1.5 mm.
Phenology: Flowering late summer–fall.
Habitat: Dry, open sites in mesic forests, along roadcuts
Elevation: 300–600 m
Discussion
Selected References
None.
Lower Taxa
None.