Compact Thread-leaf Century Plant vs Puerto Rican crested toad

Agave microceps compared with Peltophryne lemur

Key Differences

• Compact Thread-leaf Century Plant is Least Concern while Puerto Rican crested toad is Endangered.

Taxonomic Classification

Rank	Compact Thread-leaf Century Plant	Puerto Rican crested toad
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Liliopsida (Monocots)	Amphibia (Amphibians)
Order	Asparagales (Asparagales)	Anura (Frogs & Toads)
Family	Asparagaceae	Bufonidae
Genus	Agave	Peltophryne
Species	Agave microceps	Peltophryne lemur

Conservation Status

Compact Thread-leaf Century Plant

LC — Least Concern

Puerto Rican crested toad

EN — Endangered

Physical Characteristics

Attribute	Compact Thread-leaf Century Plant	Puerto Rican crested toad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Compact Thread-leaf Century Plant

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Puerto Rican crested toad

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Compact Thread-leaf Century Plant

<em>Agave microceps</em>, the compact thread-leaf century plant, is a perennial succulent in the family Asparagaceae native to Mexico, representing one of the smaller members of the ecologically and culturally significant agave genus. Agaves are iconic succulents of arid and semi-arid regions characterised by a rosette of thick, fibrous leaves typically edged with teeth and terminating in a sharp spine. <em>Agave microceps</em> typically forms compact, densely-leaved rosettes with notably narrow, thread-margined leaves, distinguishing it from larger agave species. It inhabits rocky slopes, dry grasslands, and scrublands in its native Mexican range, adapted to well-drained soils and periods of seasonal drought. Like all agaves, it is monocarpic, flowering once after many years of vegetative growth before dying, producing a tall flower spike that provides food resources for bats, hummingbirds, and insects. The species is classified as Least Concern by the IUCN, indicating a stable population without critical current threats, though many agave species face pressure from illegal collection for the horticultural trade and habitat conversion. Agaves play important roles in native ecosystems as food sources for specialist pollinators and as habitat elements on rocky hillsides. Biological traits including average lifespan in the wild, precise rosette dimensions, and population data remain poorly documented for this species compared to more commercially important agaves.