Mexican manzanita

Names and Synonyms

Common Names

• Mexican manzanita
• point-leaf manzanita
• pointleaf manzanita

Scientific Names

Accepted name

Synonyms

• Daphnidostaphylis pungens
• Arctostaphylos pungens f. glaucifolia
• Arctostaphylos pungens var. mexicana
• Uva-ursi pungens
• Arctostaphylos tomentosa var. nuda
• Arctostaphylos pungens subsp. chaloneorum
• Arctostaphylos pseudopungens
• Arctostaphylos chaloneorum
• Arctostaphylos benitoensis
• Arbutus tomentosa var. nuda
• Arbutus myrtifolia
• Arbutus nuda
• Arbutus madrono

Regional and Traditional Names

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 Ericales and the family Ericaceae, it is classified under the genus Arctostaphylos.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is primarily located within the Southwestern United States. Specifically, its range extends through the states of Arizona, California, Nevada, and Utah. In addition to these western territories, it can also be found in the South-Central region of the country. Its presence is notably documented within the borders of New Mexico. This distribution highlights its adaptation to the diverse environments of the American Southwest.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Arctostaphylos pungens is characterized by its status as a perennial species, allowing it to establish a long-term presence within its native ecosystems. As a long-lived woody shrub, it does not follow the rapid turnover of annuals or the two-year cycle of biennials, but instead invests in robust structural growth and persistent root systems that enable it to endure seasonal fluctuations. This perennial nature facilitates a gradual developmental trajectory where the plant can focus on building dense, sclerophyllous foliage and a complex branching architecture over many years. Throughout its extended lifespan, the plant engages in repeated reproductive cycles, typically flowering and fruiting periodically to ensure seed dispersal and population stability within its habitat.

Lifecycle :

perennial

Morphology

The morphology of Arctostaphylos pungens is characterized by a woody growth form, specifically classified as a shrub. This plant typically reaches a mean height of approximately 3.7 m and is entirely self-supporting rather than acting as a liana or vine. As a terrestrial species, it is neither aquatic nor semiaquatic, nor does it function as an epiphyte. Furthermore, it is an independent organism that does not exhibit parasitic behavior.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Plant height mean:

3.7 m

Woodiness :

woody

Physiology

The physiology of Arctostaphylos pungens is characterized by a metabolic framework utilizing the C3 photosynthetic pathway, which involves the direct fixation of carbon dioxide through the enzyme RuBisCO during the Calvin cycle. This plant exhibits physiological adaptations typical of sclerophyllous vegetation, often functioning in environments where water availability can be limiting. Its metabolic processes are supported by a structural investment in thick, leathery leaves designed to minimize transpirational water loss and maintain cellular turgor. Through the C3 pathway, the plant optimizes carbon assimilation under temperate conditions, balancing the energetic costs of photorespiration against the necessity of efficient glucose production to support its perennial growth and woody development.

Photosynthetic pathway :

C3

Reproduction

Reproduction in Arctostaphylos pungens is driven by the production of seeds that exhibit significant variability in their physical properties. The seed mass within this species shows a wide range of distribution, with a recorded minimum mass of 0.011155 g and a maximum mass reaching 0.2623 g. When considering the collective output of the plant, the average seed mass is calculated at a mean of 0.229581875 g. This variation in seed weight is a critical factor in the plant's reproductive strategy and subsequent seedling establishment.

Seed mass max:

0.2623 g

Seed mass mean:

0.229581875 g

Seed mass min:

0.011155 g

Sources: Global Inventory of Floras and Traits (GIFT)

Activities

Arctostaphylos pungens has 1 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antioxidant.

Antioxidant

1. Biological research

Preparations

Arctostaphylos pungens has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include extracts.

Extracts

1. Biological research