Calliandra erythrocephala is a species of flowering plants of the genus "Calliandra" in the Fabaceae family, endemic to southwestern Mexico.
 It is a small tree with bright red flowers.
 Like other members of the genus "Calliandra", the filaments of the stamens are long and colourful, in this case about 4.5 – long.
 The species was first scientifically described in 1988.
Calliandra peninsularis is a species of flowering plants of the genus "Calliandra" in the Fabaceae family.
Calliandra tweediei is a species of flowering plants of the genus "Calliandra" in the Fabaceae family.
Calliandra tergemina is a species of flowering plants of the genus "Calliandra" in the Fabaceae family.
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.
Thalia is a genus of six currently recognized species found in aquatic or marshy habitats, ranging in Africa from Senegal to Sudan to Zimbabwe, and in the Americas from Illinois to Argentina.
 Alligator-flag is a common name for plants in this genus.
 The generic name is in honor of Johannes Thal (1542–1583), a German doctor who wrote a Flora of the Harz Mountains.
Calliandra elegans is a plant species in the genus "Calliandra" found in Brazil.
Calliandra riparia is a species of flowering plants of the genus "Calliandra" in the Fabaceae family.
Calliandra physocalyx is a species of flowering plants of the genus "Calliandra" in the Fabaceae family, endemic to southwestern Mexico.
 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 7.5 cm long.
 The species was first scientifically described in 1988.
Calliandra purpurea (soldierwood) is a species of flowering plants of the genus "Calliandra" in the Fabaceae family.

Question: What are both Calliandra and Thalia?
Answer: plants