orange grass

Thân thiện

A small yellow flower blooms on a patch of orange grass in a sunny field.

Definition

Noun: 1. A North American annual plant: "orange grass" refers to a specific type of annual weed native to North America. It is characterized by its thin, wiry stems, very small scale-like leaves, and tiny yellow flowers. Its scientific name is Hypericum gentianoides.

Usage Notes

• "Orange grass" is a common name for a specific plant species. It is typically used in botanical contexts, field guides, or regional descriptions of flora.
• The name can be misleading, as the plant's flowers are yellow, not orange. The "orange" in the name may refer to the color of its dried stems or historical naming conventions.

Examples

• Noun:
  • We identified several patches of orange grass growing in the sandy soil.
  • Despite its name, orange grass produces small, bright yellow flowers.

Advanced Usage

• In Botanical Description: The term is used precisely to distinguish this species from other similar plants in the St. John's wort family (Hypericaceae).
  • The key identifying feature of orange grass is its minute, appressed leaves.

Variants and Related Words

• Pineweed: Another common name for the same plant ().
• Hypericum gentianoides: The scientific (Latin) name for the species.

Synonyms

• Pineweed (n): A direct synonym, referring to the same plant.
• St. John's wort (dwarf/tiny-leaved varieties): A related term, as orange grass belongs to the Hypericum genus, though it is a distinct species from the common St. John's wort.

Notes on Meaning

• The term "orange grass" refers exclusively to this specific botanical entity. It is not a general term for any grass that is orange in color.
• It is not typically used in idioms or phrasal verbs, as it is a highly specific noun.

Học thuật

Noun

1. annual wiry-stemmed North American weed with minute scalelike leaves and small yellow flowers

Từ đồng nghĩa

• nitweed
• pineweed
• pine-weed
• Hypericum gentianoides