Heterotheca sessiliflora
species of plant

Heterotheca sessiliflora is a species of flowering plant in the family Asteraceae known by the common name sessileflower false goldenaster. It is native to California, Sonora, and Baja California.
Heterotheca sessiliflora grows in many types of habitats. It is a perennial herb which is quite variable in appearance, particularly across its four subspecies. It may be a small clumping or mat-forming plant or grow tall stems to heights exceeding a meter. It is coated in small bristles or long woolly hairs and it is glandular, particularly around the inflorescence. The flower head contains long yellowish disc florets and the edge is fringed with yellow ray florets.
Subspecies + varieties
Heterotheca sessiliflora subsp. bolanderi (A.Gray) Semple San Francisco Bay area + coast of Redwood Country
Heterotheca sessiliflora subsp. echioides (Benth.) Semple - from San Diego County to Sonoma County
Heterotheca sessiliflora subsp.
The public source identifies “Heterotheca sessiliflora” as species of plant. This brief keeps that definition visible, then builds a research path around Heterotheca, sessiliflora and species.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jun 29, 2025. The linked authority identifier is Q5747851. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Heterotheca sessiliflora” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.