⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record gcc-39190, and has not been changed.

Helianthus nuttallii subsp. rydbergii (Britton) R.W.Long is an accepted name

This name is the accepted name of an infraspecific taxon in the genus Helianthus (family Compositae).

The record derives from TICA which reports it as an accepted name (record D079F182-9463-490B-9D0C-48B3306A0CB6) with original publication details: Brittonia 18: 77 77 1966.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:119197-2.

Synonyms:

See "Status", "Confidence level", "Source" for definitions.

Name	Status	Confi­dence level	Source
Helianthus nuttallii var. rydbergii (Britton) B.Boivin	Synonym		TICA
Helianthus rydbergii Britton	Synonym		TICA