Helianthus debilis subsp. tardiflorus

Heiser

Madroño 13: 154, figs. 5, 6. 1956.

Synonyms: Helianthus debilis var. tardiflorus (Heiser) Cronquist
Treatment appears in FNA Volume 21. Treatment on page 151. Mentioned on page 150.
Revision as of 15:34, 18 September 2019 by FNA>Volume Importer

Stems erect, glabrous or sparsely hispid. Leaf blades 5–9(–10) cm, margins usually deeply, irregularly serrate, abaxial faces densely gland-dotted. Peduncles 10–25 cm. Ray laminae 14–16(–20) mm. Discs 14–15 mm diam. 2n = 34.


Phenology: Flowering spring–fall.
Habitat: Sandy beaches
Elevation: 0–30+ m

Discussion

Selected References

None.

Lower Taxa

None.