Dunalia spinosa

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Lycioplesium meyenianum
• Dierbachia ramiflora
• Dunalia inermis
• Dunalia angustifolia
• Dunalia besseri
• Dunalia lycioides
• Dunalia ramiflora
• Atropa spinosa
• Lycium meyenianum
• Dierbachia lycioides
• Grabowskia meyeniana

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and the class Equisetopsida. Within the subclass Magnoliidae, it is organized under the order Solanales and the family Solanaceae. Finally, its specific taxonomic placement is within the genus Dunalia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific distribution pattern across the western and southern regions of the South American continent. In Western South America, its presence is notably recorded within the borders of Bolivia. The species is also found extending through the diverse landscapes of Peru. Moving toward the southern portion of the continent, its range reaches into the northern parts of Chile. Consequently, the geographical footprint of Dunalia spinosa is concentrated along the western coast and adjacent Andean territories.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Dunalia spinosa is defined by its specialized adaptation to high-altitude environments, where it thrives within specific montane or subalpine climatic zones. A critical aspect of its ecological distribution is its significant elevational range, which reaches an impressive maximum of 3500 m AMSL. This high-altitude positioning suggests that the species is physiologically equipped to withstand intense solar radiation, significant diurnal temperature fluctuations, and potentially thinner atmospheric conditions characteristic of such elevations. Its presence at these heights implies a niche role within high-mountain ecosystems, where it likely interacts with specific pollinators and soil microbiota adapted to the unique nutrient cycling and moisture retention patterns of high-elevation terrain.

Elevational range min:

3500 m AMSL

Life history

The life history of Dunalia spinosa is characterized by its nature as a perennial organism, meaning it persists through multiple growing seasons rather than completing its life cycle in a single year. As a perennial species, it undergoes repeated cycles of vegetative growth and reproductive phases, allowing it to establish a stable presence within its natural habitat. This long-term survival strategy enables the plant to accumulate resources over time, often leading to more robust flowering and seeding capabilities in subsequent years compared to annual or biennial species. Throughout its life, the plant navigates various seasonal shifts, entering periods of dormancy or reduced metabolic activity during unfavorable conditions before resuming active growth when environmental parameters become optimal.

Lifecycle :

perennial

Morphology

The morphology of Dunalia spinosa is characterized by a woody structure, exhibiting a growth form classified as a shrub. It functions as an independent organism, lacking any parasitic tendencies, and is primarily terrestrial in its ecological habit rather than being aquatic or semiaquatic. In terms of its structural support, the plant is self-supporting, meaning it does not act as an obligatory or facultative climber, liana, or vine, nor does it exhibit epiphytic tendencies such as being a holoepiphyte or hemiepiphyte. Instead, it maintains a stable, terrestrial existence as a self-standing woody shrub.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Dunalia spinosa is characterized by a fundamental metabolic framework governed by the C3 photosynthetic pathway. As a C3 plant, its carbon fixation process occurs primarily through the enzyme RuBisCO, which catalyzes the carboxylation of ribulose-1,5-bisphosphate to form two molecules of 3-phosphoglycerate within the mesophyll cells. This pathway indicates that the plant undergoes the Calvin cycle directly during daylight hours, relying on the stomata to facilitate the diffusion of atmospheric carbon dioxide into the leaf tissue. Because it lacks the specialized anatomy of C4 plants or the temporal separation of CAM plants, its physiological efficiency and water-use patterns are closely tied to the availability of moisture and ambient temperature, which influence the rate of transpiration and the potential for photorespiration.

Photosynthetic pathway :

C3

Reproduction

The reproduction of Dunalia spinosa is characterized by the production of highly uniform seeds, which play a critical role in the propagation and survival of the species. Data regarding its reproductive output indicates an extremely consistent seed morphology, with a seed mass that remains constant across all recorded measurements. Specifically, the seed mass is characterized by a mean value of 0.003 g, a maximum value of 0.003 g, and a minimum value of 0.003 g. This total lack of variance in mass suggests a highly stabilized reproductive mechanism, ensuring that each seed carries a precise and predictable amount of nutrient reserves to support early seedling development.

Seed mass mean:

0.003 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Dunalia spinosa has 3 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include As, ETHYLENE, Jasmonic acid.

As

1. Molecular and cellular biology

ETHYLENE

1. FEBS letters

Jasmonic acid

1. FEBS letters

Preparations

Dunalia spinosa has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include suspension cells.

Suspension cells

1. Comptes rendus de l'Academie des sciences. Serie III, Sciences de la vie