Pachystachys spicata

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant is primarily distributed across various tropical regions in the Americas. In North America, its presence is noted throughout Southwest Mexico. Its range extends significantly into the Caribbean islands, where it can be found in Cuba. Additionally, the species is established in the Dominican Republic and Haiti. Finally, its geographical footprint includes the island of Jamaica.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Pachysta chyis spicata is characterized by its preference for the Floresta Ombrófila (also known as Floresta Pluvial), a humid rainforest environment that provides the necessary moisture and shade for its development. This species occupies a specific altitudinal niche within these forest ecosystems, thriving at elevations ranging from a minimum of 230 m AMSL to a maximum of 600 m AMSL.

Elevational range max:

600 m AMSL

Elevational range min:

230 m AMSL

Habitat :

Floresta Ombrófila (= Floresta Pluvial)

Life history

The life history of Pachystachys spicata is characterized by its status as a perennial organism, meaning it persists through multiple growing seasons rather than completing its cycle in a single year. As a perennial, the plant maintains a continuous presence in its habitat, often relying on underground storage organs to survive periods of unfavorable environmental conditions. This long-term survival strategy allows the species to establish a stable presence within its ecological niche, enabling it to undergo repeated cycles of vegetative growth and reproductive phases over several years. Through this perennial lifecycle, the plant can accumulate resources over time, which facilitates more robust flowering and seed production in subsequent seasons compared to annual species.

Lifecycle :

perennial

Morphology

The morphology of Pachysta chyis spicata is characterized by a woody growth form that functions primarily as a self-supporting shrub or forb. Although it possesses the structural capacity to act as a self-supporting climber, it does not exhibit obligatory or facultative climbing behaviors typical of lianas or vines. The plant is strictly terrestrial in its habitat, lacking any aquatic, semiaquatic, or epiphytic tendencies, whether as a holoepiphyte, hemiepiphyte, or facultative epiphyte. Furthermore, it is an independent organism that does not function as a parasite, maintaining its own nutritional processes without reliance on host plants.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Growth form :

forb

Parasite :

independent

Woodiness :

woody

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Pachystachys spicata has 1 reported plant parts identified across 2 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf.

Leaf

1. International journal of clinical and experimental pathology
2. Acta scientiarum polonorum. Technologia alimentaria

Preparations

Pachystachys spicata has 2 reported preparations identified across 2 scientific publications and several other databases. The most consistently reported preparations include extracts of Justicia carnea, hydroethanolic leaf extracts.

Extracts of justicia carnea

1. Acta scientiarum polonorum. Technologia alimentaria

Hydroethanolic leaf extracts

1. International journal of clinical and experimental pathology