SafePlants

Fremont's Chaffbush (Amphipappus fremontii)

Fremont's chaffbush, scientifically known as Amphipappus fremontii, is a low-growing shrub found in specific regions of North America. It is also commonly called chaffbush or eytelia (in honor of artist Carl Eytel).

Considerations for Pets

• Amphipappus fremontii var. spinosus has "spinosus" in the subordinate taxa which may indicate that this variety has thorns or spines.
• The plant is described as a densely packed shrub.

Taxonomy and Nomenclature

• Scientific Name: Amphipappus fremontii Torr. & A. Gray ex A. Gray
• Common Names: Fremont's chaffbush, chaffbush, eytelia
• Family: Asteraceae
• Genus: Amphipappus Torr. & A. Gray
• Rank: Species
• Synonyms and related names:
  • Amphiachyris fremontii
  • Amphipappus spinosa
• Subspecies/Varieties:
  • Amphipappus fremontii var. fremontii
  • Amphipappus fremontii var. spinosus (A. Nelson) Ced. Porter (spiny Fremont's chaffbush)

Distribution and Habitat

• Fremont's Chaffbush can be found in the Mojave National Preserve, California.
• The species is associated with Astragalus nyensis (Nye milk-vetch) and A. nuttallianus var. imperfectus.
• Specifically referenced locations include Nevada.

Morphological Characteristics

• Fremont's Chaffbush is described as a low, mounded, many-branched but densely packed shrub.
• Leaves are between 3 and 11 mm long.
• The cypselae (ray) are 3 mm.
• It typically grows to a height of 1 to 2 feet.

Other Details

• Amphipappus fremontii is a dicot.
• It is a perennial plant.
• The plant is suited to zones 9a-10b.

Resources and Further Information

• Encyclopedia of Life
• Discover Life
• USDA Plants Database
• ITIS (Integrated Taxonomic Information System)
• CalPhotos