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Asteraceae
Helianthus

not marked as a favorite taxon *Helianthus pauciflorus Nuttall ssp. subrhomboideus (Rydberg) O. Spring & E.E. Schilling. Common name: Subrhomboidal Sunflower. Phenology: Aug-Oct. Habitat: Pastures, roadsides, and along railroads. Distribution: Ontario, Michigan. west to British Columbia, south to Indiana, Missouri, Oklahoma, and w. Texas.

Glossary (beta!)

Origin/Endemic status: W. North America

Synonymy ⓘ: = Can, FNA21, K4, NE, NS, NY, POWO; = Helianthus laetiflorus Pers. var. subrhomboideus (Rydber) Fernald — F, Tx; = Helianthus pauciflorus Nuttall var. subrhomboideus (Rydb.) Cronquist — C; = Helianthus subrhomboideus Rydberg; < Helianthus pauciflorus Nuttall — Mi. Basionym: Helianthus subrhomboideus Rydberg 1900

Links to other floras: = Helianthus pauciflorus ssp. subrhomboideus - FNA21

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image #1 of Helianthus pauciflorus ssp. subrhomboideus© aarongunnar, some rights reserved (CC BY), uploaded by aarongunnar source CC-BY | Original Image ⭷ Warning: was NOT research grade.
image #2 of Helianthus pauciflorus ssp. subrhomboideus© Eric Lamb, some rights reserved (CC BY), uploaded by Eric Lamb source CC-BY | Original Image ⭷
image #3 of Helianthus pauciflorus ssp. subrhomboideus© Eric Lamb, some rights reserved (CC BY), uploaded by Eric Lamb source CC-BY
image #4 of Helianthus pauciflorus ssp. subrhomboideus© aarongunnar, some rights reserved (CC BY), uploaded by aarongunnar source CC-BY | Original Image ⭷ Warning: was NOT research grade.
image #5 of Helianthus pauciflorus ssp. subrhomboideus© aarongunnar, some rights reserved (CC BY), uploaded by aarongunnar source CC-BY
image #7 of Helianthus pauciflorus ssp. subrhomboideus© aarongunnar, some rights reserved (CC BY), uploaded by aarongunnar source CC-BY | Original Image ⭷ Warning: was NOT research grade.

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Horticultural Information

No horticultural data found for this taxon.