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amphianthus
Scientific Name: Amphianthus
Family: Scrophulariaceae
Category: Dicot
Growth:
Duration:
Other Names:
Gratiola amphiantha (formerly Amphianthus pusillus)
This page provides information about Gratiola amphiantha, a flowering plant previously known as Amphianthus pusillus.
Common Names
- Little Amphianthus
- Pool Sprite
- Snorkelwort
Taxonomy and Nomenclature
- Scientific Name: Gratiola amphiantha (L.) Pennell. This species was formerly classified as Amphianthus pusillus Torrey.
- Family: Plantaginaceae
- Taxonomic History: Genetic analysis in 2008 led to its reclassification from the monotypic genus Amphianthus to the genus Gratiola.
Distribution and Habitat
- Gratiola amphiantha is native to the United States.
- It inhabits rock-rimmed solution pools in outcrop communities.
Morphological Characteristics
- Gratiola amphiantha is a small, annual aquatic herbaceous plant.
- It possesses a fibrous root system.
- It typically grows to a height of 5-10 centimeters (2-4 inches).
- It has two types of leaves: floating leaves (less than 3-5 mm long, oval, paired at the end of a thread-like structure) and submerged leaves (thin and narrow).
Ecological Role
- Listed as Threatened by the US ESA.
Further Information
- US ESA: Listed Threatened, as published in Federal Register Volume 53, Number 24, Pages 3560 - 3565, February 05, 1988
- Tropicos