Definition

Noun: * A pantropical, epiphytic or terrestrial whisk fern (Psilotum nudum) characterized by its usually dull yellow, dichotomously branching stems and minute, scale-like leaves. It is found in regions including the Americas, Japan, and Australia.

Usage

• is often studied in botany courses as a living example of a primitive vascular plant.
• The simple structure of , lacking true roots and leaves, provides insights into early plant evolution.

Advanced Usage

• In paleobotany, is considered a living relic, sharing morphological similarities with some of the earliest known vascular plants from the Silurian and Devonian periods.
• Horticulturists sometimes cultivate in greenhouses for educational or aesthetic purposes, appreciating its unusual, almost prehistoric appearance.

Variants and Related Words

• Whisk fern: A common name for plants in the genus , including .
• Psilotaceae: The plant family to which belongs.
• Psilophyte: A term for plants of the division Psilophyta, which includes .

Synonyms

• Skeleton fork fern
• Moa (regional name in New Zealand)

Different Meanings

This term has a single, specific meaning as the scientific (Latin) name for a distinct species of fern. It does not have other general English meanings.

Idioms and Phrasal Verbs

Not applicable. Psilotum nudum is a scientific binomial name and is not used in idiomatic expressions or phrasal verbs.

Noun

1. pantropical epiphytic or terrestrial whisk fern with usually dull yellow branches and minute leaves; America; Japan; Australia