''Calliandra physocalyx'' is a species of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s of the genus ''

Calliandra ''Calliandra'' is a genus of flowering plants in the pea family, Fabaceae, in the mimosoid clade of the subfamily Caesalpinioideae. It contains about 140 species that are native to tropical and subtropical regions of the Americas. Description ...

'' in the family

Fabaceae Fabaceae () or Leguminosae,International Code of Nomen ...

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to southwestern

Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...

. It is a shrub with pink-and-white or pink-and-red flowers. Like other members of the genus ''Calliandra'', the filaments of the stamens are long and colourful, in this case about long. The species was first scientifically described in 1988.

Distribution

''Calliandra physocalyx'' is known only from a small mountainous area of the Pacific slope of southwestern Mexico, in western

Oaxaca Oaxaca, officially the Free and Sovereign State of Oaxaca, is one of the 32 states that compose the political divisions of Mexico, Federative Entities of the Mexico, United Mexican States. It is divided into municipalities of Oaxaca, 570 munici ...

and adjacent

Guerrero Guerrero, officially the Free and Sovereign State of Guerrero, is one of the 32 states that compose the administrative divisions of Mexico, 32 Federal Entities of Mexico. It is divided into Municipalities of Guerrero, 85 municipalities. The stat ...

, at elevation. It has been seen mostly in disturbed habitats that were previously forest.

References

physocalyx Endemic flora of Mexico Flora of Guerrero Flora of Oaxaca Flora of the Sierra Madre del Sur {{Mimosoideae-stub