Helianthus pauciflorus subsp. subrhomboideus
Biochem. Syst. & Ecol. 18: 22. 1990.
Common names: Hélianthe subrhomboïdal
Basionym: Helianthus subrhomboideus Rydberg
Synonyms: Helianthus laetiflorus var. subrhomboideus (Rydberg) FernaldHelianthus pauciflorus var. subrhomboideus (Rydberg) CronquistHelianthus rigidus subsp. subrhomboideus (Rydberg) HeiserHelianthus rigidus var. subrhomboideus (Rydberg) Cronquist
Revision as of 01:59, 27 July 2019 by FNA>Volume Importer
Plants 50–120 cm. Leaves opposite; blades rhombic-ovate to lance-linear, 5–12 cm, apices acute or obtuse.
Phenology: Flowering summer–early fall.
Habitat: Dry, open places
Elevation: 400–2400 m
Distribution
Alta., Man., N.B., N.S., Ont., Que., Sask., Colo., Conn., Ill., Ind., Iowa, Kans., Maine, Mass., Minn., Mo., Mont., Nebr., N.H., N.J., N.Mex., N.Dak., Pa., R.I., S.Dak., Tex., Vt., Wis., Wyo.
Discussion
Selected References
None.
Lower Taxa
None.