Ambrosia acanthicarpa

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a specific range across parts of North America. In Western Canada, its distribution includes the provinces of Alberta, Manitoba, and Saskatchewan. Moving south into the Northwestern United States, the species can also be found in Idaho. Additionally, its presence extends into the state of Colorado. Collectively, these regions define the known geographical boundaries for Ambrosia acanthocarpa.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Ambrosia acanthicarpa is characterized by an annual lifecycle, meaning the plant completes its entire developmental sequence—from germination to seed production—within a single growing season. As an annual species, it begins its existence when seeds germinate in response to seasonal environmental cues, rapidly progressing through vegetative growth stages to establish a structural presence. Following the accumulation of sufficient biomass, the plant transitions into a reproductive phase, producing flowers and developing specialized seeds that serve as the primary mechanism for survival. Once the seeds have matured and been dispersed into the soil, the parent organism undergoes senescence and dies, leaving the next generation to depend entirely on the seed bank to initiate the cycle during the following year.

Lifecycle :

annual

Morphology

The morphology of Ambrosia acanthicarpa is characterized by a growth form classified as both a herb and a forb, exhibiting a non-woody structure throughout its development. This species functions as a self-supporting plant, lacking the climbing mechanisms of a liana or vine, and is categorized as a self-supporting organism in terms of its physical habit. It does not exhibit climbing behavior, whether obligatory or facultative, and maintains an independent existence as a non-parasitic species. Furthermore, it is a terrestrial plant, neither functioning as an epiphyte nor requiring aquatic or semiaquatic habitats for its primary life cycle.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

forb

Parasite :

independent

Woodiness :

non-woody

Reproduction

The reproduction of Ambrosia acanthicarpa is centered around the production of seeds that exhibit significant variation in individual weight. The seed mass within a population is characterized by a mean value of approximately 0.005719667 g, indicating the average energy investment per reproductive unit. However, there is a notable range in size among the offspring, with the smallest recorded seed mass measuring only 0.00264 g, while the largest individual seeds can reach a maximum mass of 0.01029 g. This variation in seed mass suggests a diverse reproductive strategy that may allow the plant to adapt to varying environmental conditions and resource availability during dispersal.

Seed mass max:

0.01029 g

Seed mass mean:

0.005719667 g

Seed mass min:

0.00264 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Ambrosia acanthicarpa has 2 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Chamissonin, Chamissonin diacetate.

Chamissonin

1. Dr. Duke

Chamissonin diacetate

1. Dr. Duke

Activities

Ambrosia acanthicarpa has 1 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Cytotoxic.

Cytotoxic

1. Dr. Duke