Helianthus pauciflorus subsp. subrhomboideus
Biochem. Syst. & Ecol. 18: 22. 1990.
Common names: Hélianthe subrhomboïdal
Basionym: Helianthus subrhomboideus Rydberg Mem. New York Bot. Gard. 1: 419. 1900
Synonyms: Helianthus laetiflorus var. subrhomboideus (Rydberg) Fernald Helianthus pauciflorus var. subrhomboideus (Rydberg) Cronquist Helianthus rigidus subsp. subrhomboideus (Rydberg) Heiser Helianthus rigidus var. subrhomboideus (Rydberg) Cronquist
Revision as of 18:48, 24 September 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.