''Psiadia'', commonly known as daisy trees, is a genus of mostly woody
Asia
Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...
n and
Africa
Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...
n plants in the tribe
Astereae
Astereae is a tribe of plants in the family Asteraceae that includes annuals, biennials, perennials, subshrubs, shrubs, and trees. They are found primarily in temperate regions of the world. Plants within the tribe are present nearly worldwide di ...
within the family
Asteraceae
Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchi ...
. The genus is distributed throughout the Western
Indian Ocean
The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or approximately 20% of the water area of Earth#Surface, Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia (continent), ...
, with species reported from continental
Eastern Africa
East Africa, also known as Eastern Africa or the East of Africa, is a region at the eastern edge of the Africa, African continent, distinguished by its unique geographical, historical, and cultural landscape. Defined in varying scopes, the regi ...
,
Madagascar
Madagascar, officially the Republic of Madagascar, is an island country that includes the island of Madagascar and numerous smaller peripheral islands. Lying off the southeastern coast of Africa, it is the world's List of islands by area, f ...
,
Mauritius
Mauritius, officially the Republic of Mauritius, is an island country in the Indian Ocean, about off the southeastern coast of East Africa, east of Madagascar. It includes the main island (also called Mauritius), as well as Rodrigues, Ag ...
,
La Reunion,
Rodrigues
Rodrigues ( ; Mauritian Creole, Creole: ) is a Autonomous administrative division, autonomous Outer islands of Mauritius, outer island of the Republic of Mauritius in the Indian Ocean, about east of Mauritius. It is part of the Mascarene Isl ...
,
the Comoro islands, as well as several of the smaller, uninhabited islands in the
Mozambique Channel
The Mozambique Channel (, , ) is an arm of the Indian Ocean located between the Southeast African countries of Madagascar and Mozambique. The channel is about long and across at its narrowest point, and reaches a depth of about off the coa ...
. Additional species are suspected on
Socotra
Socotra, locally known as Saqatri, is a Yemeni island in the Indian Ocean. Situated between the Guardafui Channel and the Arabian Sea, it lies near major shipping routes. Socotra is the largest of the six islands in the Socotra archipelago as ...
and
Sri Lanka
Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian subcontinent, ...
, but these have not been confirmed. Phylogenetic studies using DNA sequence data and biogeographic reconstruction using molecular dating have shown that the genus originated on the African mainland, and colonized Madagascar and the outlying islands in the Indian Ocean in several independent instances of overwater dispersal in the
Miocene
The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and mea ...
.
;Species
*''
Psiadia agathaeoides''
*''
Psiadia ageratoides''
*''
Psiadia alticola''
*''
Psiadia altissima
''Psiadia'', commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continent ...
''
*''
Psiadia amygdalina
''Psiadia'', commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continent ...
''
*''
Psiadia anchusifolia
''Psiadia'', commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continent ...
''
*''
Psiadia angustifolia
''Psiadia'', commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continent ...
''
*''
Psiadia argentea
''Psiadia'', commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continent ...
''
*''
Psiadia arguta
''Psiadia'', commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continent ...
''
*''
Psiadia aspera
''Psiadia'', commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continent ...
''
*''
Psiadia boivinii
''Psiadia'', commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continent ...
''
*''
Psiadia cacuminum
''Psiadia'', commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continent ...
''
*''
Psiadia callocephala
''Psiadia'', commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continent ...
''
*''
Psiadia canescens
''Psiadia'', commonly known as daisy trees, is a genus of mostly woody Asian and African plants in the tribe Astereae within the family Asteraceae. The genus is distributed throughout the Western Indian Ocean, with species reported from continent ...
''
*''
Psiadia cataractae''
*''
Psiadia ceylanica''
*''
Psiadia coarctata''
*''
Psiadia coursii''
*''
Psiadia decaryi''
*''
Psiadia dentata''
*''
Psiadia depauperata''
*''
Psiadia dimorpha''
*''
Psiadia dracaenifolia''
*''
Psiadia flavocinerea''
*''
Psiadia glutinosa''
*''
Psiadia godotiana''
*''
Psiadia grandidentata''
*''
Psiadia hendersoniae''
*''
Psiadia hispida''
*''
Psiadia humilis''
*''
Psiadia inaequidentata''
*''
Psiadia incana''
*''
Psiadia insignis''
*''
Psiadia laurifolia''
*''
Psiadia leucophylla''
*''
Psiadia lithospermifolia''
*''
Psiadia lucida''
*''
Psiadia marojejyensis''
*''
Psiadia mauritiana''
*''
Psiadia melastomoides''
*''
Psiadia minor''
*''
Psiadia mollissima''
*''
Psiadia montana''
*''
Psiadia nigrescens''
*''
Psiadia pascalii''
*''
Psiadia penninervia''
*''
Psiadia pollicina''
*''
Psiadia pseudonigrescens''
*''
Psiadia punctulata''
*''
Psiadia quartziticola''
*''
Psiadia retusa''
*''
Psiadia rivalsii''
*''
Psiadia rodriguesiana''
*''
Psiadia salaziana''
*''
Psiadia salviifolia''
*†''
Psiadia schweinfurthii''
*''
Psiadia sericea''
*''
Psiadia serrata''
*''
Psiadia tanala''
*''
Psiadia tardieuana''
*''
Psiadia terebinthina''
*''
Psiadia tsaratananensis''
*''
Psiadia vestita''
*''
Psiadia viscosa''
; Formerly included
see: ''
Conyza
''Conyza'' (horseweed, butterweed or fleabane) is a genus of flowering plants in the family Asteraceae.
They are native to tropical and warm temperate regions throughout the world, and also north into cool temperate regions in North America and ...
Microglossa Pluchea
''Pluchea'' is a genus of flowering plants in the tribe Inuleae within the family Asteraceae. Members of this genus might be known as camphorweeds, plucheas, or less uniquely fleabanes. Some, such as ''P. carolinensis'' and ''P. odorata'', are c ...
''
References
Asteraceae genera
Taxonomy articles created by Polbot
{{Astereae-stub