familyAsteraceae
genusHelianthus
speciesHelianthus debilis
subspeciesHelianthus debilis subsp. cucumerifolius
Helianthus debilis subsp. cucumerifolius
Madroño 13: 160. 1956.
Common names: Cucumberleaf sunflower
Basionym: Helianthus cucumerifolius Torrey & A. Gray Fl. N. Amer. 2: 319. 1842
Synonyms: Helianthus debilis var. cucumerifolius (Torrey & A. Gray) A. Gray
Revision as of 19:36, 16 December 2019 by FNA>Volume Importer
Stems erect, hispid. Leaf blades 4–9 cm, margins usually shallowly, regularly serrate, abaxial faces sometimes gland-dotted. Peduncles 25–50 cm. Ray laminae (15–)20–30 mm. Discs 16–18(–20) mm diam. 2n = 34.
Phenology: Flowering spring–fall.
Habitat: Open areas, sandy soils
Elevation: 10–100+ m
Distribution
Conn., Fla., Ga., La., Md., Mass., Mich., N.H., N.Y., N.C., Pa., R.I., S.C., Tex., Vt., Va., W.Va.
Discussion
Selected References
None.
Lower Taxa
None.