''Villadia'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of plants in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Crassulaceae. It includes about 25 to 30

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

distributed from

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...

Synonyms

''Altamiranoa'' was a

of the Crassulaceae, that Joseph Nelson Rose proposed in the early 1900s for 12 Mexican species, three described as new and nine formerly in ''

Cotyledon A cotyledon (; ; ; , gen. (), ) is a significant part of the embryo within the seed of a plant, and is defined as "the embryonic leaf in seed-bearing plants, one or more of which are the first to appear from a germinating seed." The numb ...

'', '' Sedum'', or '' Umbilicus''. The name was dedicated to Fernando Altamirano, a Mexican physician, botanist and naturalist that co-worked with J. N. Rose. Baehni (1937) united the genus ''Altamiranoa'' with ''Villadia'', but Walther (1938) refuted the argument and proposed the combined genus be called species of ''Altamiranoa'' are best dispersed in '' Sedum'' genus, but maintained the differences with genus ''Villadia''. Species listed under ''Altamiranoa'' include: *'' Altamiranoa albiflora'' ('' Villadia albiflora'') *'' Altamiranoa alpina'' *'' Altamiranoa batesii'' ('' Villadia batesii'') *'' Altamiranoa berillonana'' *'' Altamiranoa calcicola'' *'' Altamiranoa chihuahuensis'' ('' Sedum chihuahuensis'') *'' Altamiranoa cucullata'' ('' Villadia cucullata'') *'' Altamiranoa decipiens'' *'' Altamiranoa diffusa'' *'' Altamiranoa dyvrandae'' *'' Altamiranoa elongata'' ('' Sedum jurgensenii'') *'' Altamiranoa erecta'' *'' Altamiranoa ericoides'' *'' Altamiranoa fusca'' *'' Altamiranoa galeottiana'' *'' Altamiranoa goldmanii'' ('' Sedum goldmanii'') *'' Altamiranoa grandyi'' ('' Sedum grandyi'') *''

Altamiranoa guatemalensis ''Villadia'' is a genus of plants in the family Crassulaceae. It includes about 25 to 30 species distributed from Texas to Peru. Synonyms ''Altamiranoa'' was a genus of the Crassulaceae, that Joseph Nelson Rose proposed in the early 1900s for 12 ...

'' ('' Villadia guatemalensis'') *'' Altamiranoa hemsleyana'' *'' Altamiranoa imbricata'' ('' Villadia imbricata'') *'' Altamiranoa incarum'' ('' Villadia incarum'') *'' Altamiranoa jurgensenii'' ('' Sedum jurgensenii'') *'' Altamiranoa levis'' *'' Altamiranoa mexicana'' *'' Altamiranoa minutiflora'' ('' Villadia minutiflora'') *'' Altamiranoa montana'' *'' Altamiranoa necaxana'' *'' Altamiranoa nelsonii'' ('' Villadia nelsonii'') *'' Altamiranoa batesii'' *'' Altamiranoa painteri'' ('' Villadia painteri'') *'' Altamiranoa parva'' *'' Altamiranoa parviflora'' *'' Altamiranoa pringlei'' ('' Villadia pringlei'') *'' Altamiranoa ramosissima'' *'' Altamiranoa ramulos'' *'' Altamiranoa ramulosa'' *'' Altamiranoa scopulina'' ('' Sedum scopulinum'') *'' Altamiranoa squamulosa'' ('' Villadia squamulosa'') *'' Altamiranoa stricta'' *'' Altamiranoa virgata'' *'' Altamiranoa weberbaueri'' Crassulaceae Crassulaceae genera {{Crassulaceae-stub