Erodium
and California
This site was created and is maintained by Benjamin Coultrup.
Photos all ©Benjamin Coultrup unless otherwise indicated, 1984-
Clade I, Subclade 1
Subgenus Erodium
Clade I, Subclade 2
Subgenus Barbata
Clade II, Subclade 3
Clade II, Subclade 4
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Classification of Erodium
Erodium, has had various arrangements of species into subgenera and sections.
The latest system based on morphological features, by Professor Guittonneau, has two sub genera with five sections. Recently a study based on trnL-
Here we first look at Guittonneau’s classification, and then how this fits into the clades.
Guittonneau’s Classification
Genus Erodium -
Subgenus Erodium -
Section Erodium -
Section Oxyrhynchia -
Subgenus Barbata -
Section Malacoidea -
Subsection Malacoidea
Series Malacoides
Series Botrys
Series Asplenioides
Series Trifolium
Subsection Reichardia
Section Cicutaria -
Subsection Cicutaria -
Subsection Acaulia -
Section Absinthoidea -
Subsection Absinthoidea -
Subsection Feotida -
Revised Classification based on clades
Clade I
Subclade 1 -
Section Erodium -
Section Oxyrhynchia -
Stephanianum group: Erodium stephanianum and Erodium tataricum
Subclade 2 -
including: E. gaillardottii, E. ruthenicum, E. gruinum, E. telavivense, E. iranicum, E. pelargoniiflorum, E. hoefftianum, E. adenophorum
Clade II
Subclade 3:
Cygnorum Group: four of the five species endemic to Australia: E. crinitum E. cygnorum E. carolinianum E. janszii
Subclade 4: all of Subgenus Barbata not already included above
Section Malacoidea -
Subsection Malacoidea
Series Malacoides
Series Botrys
Series Asplenioides
Series Trifolium
Subsection Reichardia
Section Cicutaria -
Subsection Cicutaria -
Subsection Acaulia -
Section Feotida -
Notes: 1: This is my interpretation of how Professor Guittonneau’s classification would fit into the clades
2: Professor Guittonneau’s subgenera and sections have largely been kept here, except it does not make sense to keep Absinthoidea and Foetida as subsections now they are in separate clades, so they have been changed to Section Absinthoidea and Section Foetida respectively.
3: in subclade 3, a group (section?) name is needed for the whole of this subclade