Cut-leaved cranesbill Geranium dissectum, copyright Fornax.

Belongs within: Malvidae.

The Geraniaceae is a family of mostly herbaceous plants. Species of the genus Geranium are known as cranesbills for their elongate capsular fruits; members of the genus Erodium are conversely known as heron's bills or storksbills. Garden geraniums are mostly species of the genus Pelargonium.

Characters (from Xu & Aedo): Herbs, annual or perennial (rarely shrublets or shrubs). Stipules present. Leaves alternate or opposite, palmately or pinnately divided, petiolate. Flowers in cymes, pseudoumbels, rarely flowers solitary, usually bisexual, actinomorphic, or ± zygomorphic. Sepals 5, usually distinct, imbricate. Petals usually 5, distinct. Fertile stamens 5 or 10, usually in 2 whorls, sometimes a whorl reduced to staminodes; filaments basally connate or distinct; anthers 2-locular, longitudinally dehiscent. Ovary superior; carpels 5, connate; ovules 1 or 2 per locule, pendulous, anatropous. Fruit a schizocarp with 5 1-seeded awned mericarps which separate elastically from a central beak. Seeds usually with little or no endosperm; embryo folded.

    |--Hypseocharis bilobata WM09
    |--Sarcocaulon CV06
    |    |--S. inerme CV06
    |    |--S. marlothii CV06
    |    `--S. peniculinum CV06
    |--Monsonia PP07
    |    |--M. deserticola CV06
    |    |--M. drudeana CV06
    |    |--M. ignorata CV06
    |    |--M. senegalensis PP07
    |    `--M. trilobata CV06
    |--Erodium KM08
    |    |--E. aureum KM08
    |    |--E. botrys OS04
    |    |--E. ciconium H91
    |    |--E. cicutarium KM08
    |    |--E. cygnorum KM08
    |    |--E. gruinum PT98
    |    |--E. laciniatum AGF98
    |    |--E. malacoides PT98
    |    |--E. moschatum GK00
    |    `--E. stephanianum O88
    |--Pelargonium L’Hér. 1787 A61
    |    |--P. alchemilloides CM09
    |    |--P. capitatum SM06
    |    |--P. cortusifolium CV06
    |    |--P. graveolens J87
    |    |--P. × hortorum WM09
    |    |--P. havlasae OS04
    |    |--P. inodorum Willd. 1809 (see below for synonymy) A61
    |    |--P. littorale GK00
    |    |--P. mirabile CV06
    |    |--P. otaviense CV06
    |    |--P. paniculatum CV06
    |    `--P. zonale MH98
    `--Geranium Linnaeus 1753 A61
         |  i. s.: G. aconitifolium C55a
         |         G. carolinianum [=G. dissectum var. carolinianum] A61
         |         G. columbinum PT98
         |         G. donianum O88
         |         G. himalayense O88
         |         G. lambertii O88
         |         G. macrorrhizum H09
         |         G. magellanicum D03
         |         G. molle PT98
         |         G. nakaoanum O88
         |         G. nepalense O88
         |         G. phaeum C55b
         |         G. polyanthes O88
         |         G. pratense C55b
         |         G. purpureum H91
         |         G. pusillum C55b
         |         G. pyrenaicum C55b
         |         G. refractum O88
         |         G. robertianum PT98
         |           |--G. r. ssp. robertianum PT98
         |           `--G. r. ssp. purpureum PT98
         |         G. rotundifolium PT98
         |         G. sanguineum Z02
         |         G. solanderi GK00
         |         G. sylvaticum H09
         |           |--G. s. ssp. sylvaticum H09
         |           `--G. s. ssp. caeruleatum H09
         |         G. wallichianum O88
         |--G. (sect. Andina) sessiliflorum Cav. 1787 A61
         |    |--G. s. var. sessiliflorum A61
         |    |--G. s. var. arenarium Simpson & Thomson 1943 (see below for synonymy) A61
         |    |--G. s. var. glabrum Knuth 1906 A61
         |    |--G. s. var. maculatum Simpson & Thomson 1943 A61
         |    `--G. s. var. novae-zelandiae V09
         |--G. sect. Australiensia A61
         |    |--G. microphyllum Hook. f. 1844 (see below for synonymy) A61
         |    |    |--G. m. var. microphyllum A61
         |    |    |--G. m. var. discolor Simpson & Thomson 1943 A61
         |    |    `--G. m. var. obtusatum Simpson & Thomson 1943 A61
         |    `--G. traversii Hook. f. 1867 A61
         |         |--G. t. var. traversii A61
         |         `--G. t. var. elegans Ckn. 1902 A61
         |--G. (sect. Chilensia) pilosum Sol. ex Willd. 1800 (see below for synonymy) A61
         `--G. sect. Columbina A61
              |--G. australe Nees in Lehm. 1844-1845 A61 (see below for synonymy)
              `--G. dissectum A61

Geranium australe Nees in Lehm. 1844-1845 A61 [=G. dissectum var. australe A27; incl. G. dissectum var. glabratum Hook. f. 1852 A61]

Geranium microphyllum Hook. f. 1844 [incl. G. potentilloides Hook. f. 1852 non L’Hér. ex DC. 1824, G. retrorsum Cunn. 1839 non L’Hér. ex DC. 1824] A61

Geranium pilosum Sol. ex Willd. 1800 [=G. dissectum var. pilosum; incl. G. dissectum var. grandiflorum Knuth 1912, G. patagonicum, G. dissectum var. patulum Hooker 1864, G. retrorsum L’Hér. ex DC. 1824] A61

Geranium sessiliflorum var. arenarium Simpson & Thomson 1943 [incl. G. brevicaule Hook. 1834, G. sessiliflorum var. sericea ms] A61

Pelargonium inodorum Willd. 1809 [=Geranium inodorum Poir. 1812; incl. P. clandestinum L’Hér. ex DC. 1824, P. erodioides Hook. 1834, P. australe var. erodioides Benth. 1863] A61

*Type species of generic name indicated


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