Huperzia dichotoma

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Phlegmariurus dichotomus
• Huperzia lindeneri
• Huperzia mortonii
• Huperzia schlechtendalii
• Lycopodium chamaepeuce
• Lycopodium dichotomum
• Lycopodium dichotomum var. maximum
• Lycopodium dichotomum var. pusillum
• Lycopodium dichotomus var. spegazzinii
• Lycopodium gramineum
• Urostachys barbatus
• Urostachys chamaepeuce
• Urostachys chamaepeuce var. maximus
• Urostachys dichotomus
• Urostachys dichotomus var. pusillus
• Urostachys gramineus
• Urostachys lindeneri
• Urostachys schlechtendalii
• Urostachys chamaepeuce var. maior
• Urostachys chamaepeuce var. urbanianus
• Plananthus dichotomus
• Urostachys mortonii

Sources: Wikidata

Taxonomical Classification

This plant belongs to the kingdom Plantae within the phylum Streptophyta and the class Equisetopsida. It is further classified under the subclass Lycopodiidae and the order Lycopodiales, falling into the family Lycopodiaceae. Ultimately, its taxonomic identity is defined by the genus Huperzia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical distribution across several key regions in North America. In the Southeastern United States, its presence is specifically noted within the state of Florida. Moving into Mexico, it can be found throughout the Central region of the country. Its range also extends to the Northeast and the Gulf areas of Mexico. Additionally, the species inhabits the various islands located along the Mexican Pacific coast.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Huperzia dichotoma is characterized by its presence in diverse forest environments, specifically thriving within both Floresta de Terra Firme and Floresta de Várzea habitats. This plant exhibits a broad altitudinal distribution, occupying a wide range of elevations that begins at sea level (0 m AMSL) and extends up to a maximum height of 3000 m AMSL. This significant elevational breadth allows the species to inhabit various ecological niches, from low-lying floodplain forests to high-altitude mountainous terrains.

Elevational range max:

3000 m AMSL

Elevational range min:

0 m AMSL

Habitat :

Floresta de Terra Firme, Floresta de Várzea

Life history

The life history of Huperzia dichotoma is characterized by its status as a perennial plant, meaning it persists through multiple growing seasons rather than completing its cycle in a single year. As a lycopod, its developmental trajectory involves a complex alternation of generations, beginning with a dominant, long-lived sporophyte stage that produces specialized structures called strobili at the tips of its dichotomously branching stems. These strobili release spores into the environment, which germinate into a microscopic, free-living gametophyte phase. This gametophyte stage is typically subterranean or resides within moist substrate, serving as the site for fertilization. Once fertilization occurs, the new sporophyte emerges, establishing a robust, slow-growing perennial presence that relies on stable, moist forest environments to sustain its multi-year existence.

Lifecycle :

perennial

Morphology

The morphology of Huperzia dichotoma is characterized by a non-woody growth form, specifically manifesting as a herbaceous plant categorized as a forb. It functions as an independent organism, lacking any parasitic tendencies, and is classified as a self-supporting plant rather than a climber, liana, or vine. While it exhibits a terrestrial habitat preference, its ecological niche can encompass aquatic or semiaquatic environments depending on local conditions. In terms of its epiphytic nature, it is described as a holoepiphyte, which can include obligatory growth patterns.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

holoepiphyte

Epiphyte :

obligatory

Growth form :

herb

Growth form :

forb

Parasite :

independent

Woodiness :

non-woody

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Huperzia dichotoma has 1 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Hup A.

Hup A

1. Pakistan journal of pharmaceutical sciences

Conditions

Huperzia dichotoma has 1 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include Alzheimer's disease.

Alzheimer's disease

1. Pakistan journal of pharmaceutical sciences