Arnoglossum plantagineum
Fl. Ludov., 65. 1817.
Synonyms: Cacalia plantaginea (Rafinesque) ShinnersCacalia pteranthes RafinesqueCacalia tuberosa NuttallConophora tuberosa (Nuttall) NieuwlandMesadenia plantaginea (Rafinewque)RafinesqueMesadenia tuberosa (Nuttall) BrittonSenecio nuttallii Schultz-Bipontinus
Revision as of 00:33, 27 July 2019 by FNA>Volume Importer
Plants 50–100 cm (weakly rhizomatous). Stems angulate. Basal leaves: blades broadly elliptic, to 17 cm, margins entire or sinuate. Cauline leaves: proximal (and mid) petiolate, elliptic (bases rounded), margins entire or serrulate; distal petiolate or sessile, smaller (narrower). Involucres (9.5–)10–12(–14) mm. Phyllaries (pale green) ovate, midvein wings uniform or highest at apices. Corollas white or greenish, 8–10(–11.5) mm. Cypselae fusiform or clavate, 4–5 mm (dark brown, 12–15-ribbed); pappi (6–)7–8(–9) mm. 2n = 54.
Phenology: Flowering May (south)–Aug (north).
Habitat: Wet prairies and pastures, usually in boggy areas in north
Elevation: 0–600 m
Distribution
Ont., Ala., Ark., Ill., Ind., Iowa, Kans., Ky., La., Mich., Minn., Miss., Mo., Nebr., Ohio, Okla., S.Dak., Tenn., Tex., Wis.
Discussion
Selected References
None.
Lower Taxa
None.