Candelabra Tree vs Chisos Mountains Oak

Araucaria angustifolia compared with Quercus tardifolia

Key Differences

• Candelabra Tree is Critically Endangered while Chisos Mountains Oak is Data Deficient.

Taxonomic Classification

Rank	Candelabra Tree	Chisos Mountains Oak
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Coniferophyta (Conifers)	Magnoliophyta (Flowering Plants)
Class	Pinopsida (Conifers)	Magnoliopsida (Dicots)
Order	Pinales (Pines & Allies)	Fagales (Beeches & Oaks)
Family	Araucariaceae	Fagaceae (Beech Family)
Genus	Araucaria	Quercus (Oaks)
Species	Araucaria angustifolia	Quercus tardifolia

Evolutionary Relationship

Candelabra Tree and Chisos Mountains Oak share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Candelabra Tree

CR — Critically Endangered

Chisos Mountains Oak

DD — Data Deficient

Physical Characteristics

Attribute	Candelabra Tree	Chisos Mountains Oak
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Candelabra Tree

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Brazil, Colombia, Ecuador, and India. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Chisos Mountains Oak

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Candelabra Tree

The Candelabra Tree (Araucaria angustifolia) is a species in the genus Araucaria. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types spanning the

Chisos Mountains Oak

The Chisos Mountains Oak (Quercus tardifolia) is a rare deciduous oak endemic to the Chisos Mountains of Big Bend National Park in Trans-Pecos Texas, USA. Belonging to the red oak group (section Lobatae) within the family Fagaceae, it is one of the most geographically restricted oaks in North America, known from only a very small area within the high-elevation woodland zones of the park. The species grows at elevations roughly between 1,800 and 2,400 metres, where it occurs in mixed woodland communities alongside other oaks, junipers, and pines. Like other red oaks, its acorns require two years to mature, and the leaves typically display the deep sinuses and bristle-tipped lobes characteristic of the section. The IUCN currently classifies Quercus tardifolia as Data Deficient, reflecting uncertainty about its precise population size, the extent of hybridisation with related oak species, and the degree to which apparent stands represent genetically distinct individuals versus hybrids. Climate change poses a significant long-term threat to this mountain-island endemic, as rising temperatures could compress or eliminate the cooler, moister habitat on which it depends. Conservation efforts focus on accurate taxonomic assessment, population monitoring within Big Bend National Park, and seed banking to preserve genetic diversity.