Definition

Noun: * A specific species of flowering plant in the aster family (Asteraceae), native to western North America. It is characterized by its slender, perennial growth form, leaves with weak bristles or spines, and yellow composite flower heads.

Usage Notes

• This is a scientific name (binomial nomenclature) used in botany. It is always written in italics (or underlined when handwritten). The first part, , is the genus name and is capitalized. The second part, , is the specific epithet and is written in lowercase.
• In everyday language, it is more common to use a common name, if one exists. This species may be referred to by names like "spiny goldenweed" or "yellow spiny daisy," though these can sometimes refer to related species.

Examples

• The dry hillside was dotted with the bright yellow blooms of .
• Botanists are studying the drought tolerance of .
• A key identifying feature is the weakly bristly leaf margin, which gives its name.

Advanced Usage

• The name is descriptive: "Haplopappus" comes from Greek roots meaning "single" and "pappus" (referring to the feathery appendage on the seed), and "spinulosus" is Latin for "with small spines" or "bristly," describing the leaves.
• In taxonomic writing, the author who first formally described the species may be cited after the name (e.g., (Pursh) DC.).

Variants and Related Words

• Common Name: Spiny goldenweed, Yellow spiny daisy.
• Genus: (This is the broader group containing this and other similar species).
• Family: Asteraceae (The aster, daisy, or sunflower family).

Synonyms

• Scientific Synonym: (Note: Plant classifications can change as genetic research progresses. This name reflects a reclassification of the species into a different genus).
• Common Name Synonyms: Spiny haplopappus, Pringle's goldenweed (for specific varieties).

Related Terms (Not Phrasal Verbs/Idioms)

• Perennial: A plant that lives for more than two years.
• Composite flower head: A characteristic flower structure of the aster family where what appears to be a single flower is actually a dense cluster of many small flowers.
• Specific epithet: The second part of a binomial scientific name, which identifies the species within the genus.

Noun

1. slender perennial of western North America having weakly bristly leaves and yellow flower heads