Nevada dalea

Names and Synonyms

Common Names

• Nevada dalea
• Nevada smokebush
• dotted dalea

Scientific Names

Accepted name

Synonyms

• Dalea polydenia
• Parosela polydenia

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Fabales, it is classified under the family Fabaceae. Its specific taxonomic identity is defined by the genus Psorothamnus, with the species being Psorothamnus polydentius.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific geographical distribution centered within the Southwestern United States. It is primarily found throughout the state of California. Additionally, its range extends into the desert landscapes of Nevada. The species can also be located within the borders of Utah. These three states represent the primary regions where this medicinal plant occurs naturally.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Psorothamnus polydelius is characterized by a perennial lifecycle, allowing the plant to persist in its environment over multiple growing seasons. As a perennial species, it establishes a stable presence within its habitat, often relying on a robust root system to survive periods of environmental stress. This longevity enables the plant to engage in repeated reproductive cycles, contributing to the long-term stability of its population within its native ecological niche.

Lifecycle :

perennial

Morphology

The morphology of Psorothamnus polydentius is characterized by a woody structure and a growth form classified as a shrub. This plant functions as an independent organism, neither acting as a parasite nor as an epiphyte, maintaining a primarily terrestrial existence within its habitat. Although its growth habit can vary across different ecological niches, it is fundamentally a self-supporting species, lacking the climbing or vine-like characteristics of lianas or obligatory climbers.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Psorothamnus polydenius is characterized by a specialized metabolic framework adapted to arid environments, primarily utilizing a C3 photosynthetic pathway. Unlike succulents that may employ CAM metabolism to conserve water, this species relies on the standard C3 cycle for carbon fixation, where atmospheric carbon dioxide is captured through the enzyme RuBisCO during the light-dependent reactions. This metabolic strategy dictates its water-use efficiency and gas exchange patterns, influencing how the plant manages transpiration and internal CO2 concentrations under heat stress. The physiological regulation of its stomatal conductance and osmotic adjustment is critical to maintaining turgor pressure and photosynthetic continuity within its specific ecological niche.

Photosynthetic pathway :

C3

Reproduction

The reproduction of Psorothamnus polydentius is characterized by the production of extremely minute seeds, which play a critical role in its dispersal and establishment strategies. Quantitative analysis of its reproductive output reveals a highly consistent seed morphology, with a recorded seed mass mean of 0.00197 g. This uniformity is reflected in the observed range, as both the maximum and minimum seed mass values are documented at exactly 0.00197 g. Such minimal mass suggests that the plant likely relies on wind or specialized environmental vectors to distribute its progeny, ensuring that these tiny reproductive units can be spread effectively across its natural habitat.

Seed mass mean:

0.00197 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Psorothamnus polydenius has 6 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include 2',4'-Dihydroxy-6'-methoxy-3',5'-dimethylchalcone, 2,2',4'-trihydroxy-6'-methoxy-3',5'-dimethylchalcone, DALRUBONE, Demethoxymatteucinol, ERIODICTYOL.

2',4'-Dihydroxy-6'-methoxy-3',5'-dimethylchalcone

1. Journal of natural products

2,2',4'-trihydroxy-6'-methoxy-3',5'-dimethylchalcone

1. Journal of natural products

DALRUBONE

1. Journal of natural products

Demethoxymatteucinol

1. Journal of natural products

ERIODICTYOL

1. Journal of natural products

Photodalrubone

1. Journal of natural products

Conditions

Psorothamnus polydenius has 1 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include Leishmania donovani.

Leishmania donovani

1. Journal of natural products

Preparations

Psorothamnus polydenius has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include methanolic extract.

Methanolic extract

1. Journal of natural products