familyAsteraceae
genusHelianthus
speciesHelianthus debilis
subspeciesHelianthus debilis subsp. cucumerifolius
Difference between revisions of "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
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Revision as of 18:48, 24 September 2019
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.