Heterotheca grandiflora

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Heterotheca grandiflora
Starr 031001-2109 Heterotheca grandiflora.jpg

Apparently Secure (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae
Genus: Heterotheca
Species: H. grandiflora
Binomial name
Heterotheca grandiflora
Nutt. 1840
Synonyms[1][2]
  • Heterotheca floribunda Benth.

Heterotheca grandiflora is a species of flowering plant in the daisy family known by the common name Silk-grass goldenasteror telegraphweed. It is native to the southwestern United States (California, Nevada, Utah, Arizona)[3][4] and northwestern Mexico (Baja California),[5] but it can be found in other areas as an introduced species, such as Hawaii. It is often a roadside weed even where it is native.

Heterotheca grandiflora is a tall, bristly, glandular plant exceeding a meter (40 inches) in height and densely foliated in hairy to spiny toothed or lobed leaves. Leaves are smaller and more widely spaced toward the top of the stem, which is occupied by an inflorescence of bright yellow daisy-like flower heads. The disc and ray florets drop away to leave a spherical head of achenes, each with a long white pappus. [6]

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