para rhatany

Names and Synonyms

Common Names

• rhatany
• rhatany-root
• Peruvian Rhatany

Scientific Names

Accepted name

Synonyms

• Krameria triandra var. humboldtiana
• Krameria triandra
• Krameria illuca
• Krameria pentapetala

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta within the class Equisetopsida. It is further organized into the subclass Magnoliidae and the order Zygophyllales. Ultimately, Krameria lappacea is a member of the family Krameriaceae and falls under the genus Krameria.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is primarily found across the diverse landscapes of Western South America. Specifically, its natural range extends through the territories of Bolivia, Ecuador, and Peru. Moving toward the southern portion of the continent, it can also be located in the northwest region of Argentina. Additionally, the species is distributed throughout central Chile. Together, these locations define its unique geographical footprint across the South American continent.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Krameria lappacea is characterized by its ability to inhabit a diverse range of altitudinal gradients, demonstrating significant environmental plasticity. This species thrives across a broad vertical distribution, occupying habitats ranging from low-lying areas at an elevation of 300 m AMSL to high-altitude environments reaching up to 4500 m AMSL. Such an expansive elevational range suggests that the plant is capable of adapting to varying thermal regimes, atmospheric pressures, and moisture availability found across different montane and sub-montane ecological zones.

Elevational range max:

4500 m AMSL

Elevational range min:

300 m AMSL

Life history

The life history of Krameria lappacea is characterized by its nature as a perennial plant, allowing it to persist through multiple growing seasons rather than completing its cycle in a single year. Throughout its existence, it maintains a consistent foliage profile as an evergreen species, retaining its leaves year-round instead of shedding them seasonally. This combination of a long-lived life cycle and continuous leaf retention defines its ecological presence and developmental stability within its natural habitat.

Deciduousness :

evergreen

Lifecycle :

perennial

Morphology

The morphology of Krameria lappacea is characterized by a shrubby growth form, exhibiting a woody structure that distinguishes it from non-woody species. It is a self-supporting plant, meaning it does not function as a climber, liana, or vine, and it maintains an independent existence without being a parasite. As a terrestrial species, it does not exhibit epiphytic tendencies—such as being a holoepiphyte or hemiepiphyte—nor is it aquatic or semiaquatic. In terms of stature, the plant typically reaches a mean height of approximately 0.8 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Plant height mean:

0.8 m

Woodiness :

woody

Physiology

The physiology of Krameria lappacea is characterized by its metabolic processes and nutritional acquisition strategies, particularly regarding its interaction with soil nutrients. In terms of its nitrogen metabolism, the plant does not function as a nitrogen fixer; it lacks the symbiotic relationship with diazotrophic bacteria, such as Rhizobium, required to convert atmospheric nitrogen into bioavailable forms. Consequently, its physiological dependence on soil nitrogen is high, requiring the uptake of nitrates or ammonium through its root system to support protein synthesis and enzymatic functions. The plant's metabolic pathways are geared toward the production of secondary metabolites, which are essential for its chemical profile, though its primary growth is strictly governed by the availability of mineral nitrogen in the substrate rather than autonomous fixation.

Nitrogen fixer :

no

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Krameria lappacea has 1 reported plant parts identified across 3 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include root.

Root

1. Biochemical pharmacology
2. Antibiotics (Basel, Switzerland)
3. Planta medica

Chemicals

Krameria lappacea has 17 reported phytochemicals identified across 3 scientific publications and several other databases. The most consistently reported chemicals include Proanthocyanidins, 2-(2,4-dihydroxyphenyl)-5-(e)-propenylbenzofuran, Conocarpan, D-Catechin, Epicatechin.

Proanthocyanidins

1. Dr. Duke
2. Planta medica

2-(2,4-dihydroxyphenyl)-5-(e)-propenylbenzofuran

1. Biochemical pharmacology

Conocarpan

1. Journal of ethnopharmacology

D-Catechin

1. Dr. Duke

Epicatechin

1. Dr. Duke

GEOFFROYINE

1. Dr. Duke

GUM

1. Dr. Duke

N-methyl tyrosine

1. Dr. Duke

Phloroglucin

1. Dr. Duke

Procyanidins

1. Dr. Duke

Activities

Krameria lappacea has 127 reported activities identified across 3 scientific publications and several other databases. The most consistently reported activities include Antibacterial, ACE-Inhibitor, Absorbent, Allelochemic, Allergenic.

Antibacterial

1. Dr. Duke
2. Journal of ethnopharmacology
3. Antibiotics (Basel, Switzerland)

ACE-Inhibitor

1. Dr. Duke

Absorbent

1. Dr. Duke

Allelochemic

1. Dr. Duke

Allergenic

1. Dr. Duke

Alpha-Glucosidase-Inhibitor

1. Dr. Duke

Anabolic

1. Dr. Duke

Anthelmintic

1. Dr. Duke

AntiCVI

1. Dr. Duke

AntiEBV

1. Dr. Duke

Medicinal Uses

Krameria lappacea has 2 reported medicinal uses identified across 3 scientific publications and several other databases. The most consistently reported uses include Methicillin-Resistant Staphylococcus aureus, breast cancer.

Most Reported Uses

Preparations