GeraniumsOnline   

                                               

 

                                                           

 Introduction to The Geranium Family & Pelargoniums   For more information on the Geranium Family

The geranium family consists of several genera of plants commonly referred to as geraniums or cranesbills.

The genus for which the family is named is Geranium. These are plants primarily of temperate areas and are now frequently referred to as “hardy geraniums.”  The genus which most of our members grow is called Pelargonium. These plants are primarily from Southern Africa – many are from the Mediterranean climate area of South Africa. This makes them at home in southern California where we also enjoy a Mediterranean climate. Erodium is another genus in the geranium family. A couple of species are grown in gardens and are available commercially. Two or three species of Erodium are common weeds in the fields of California. Monsonia is yet another genus in the geranium family. This genus is rare in cultivation and in southern Africa species are commonly viewed as weeds. Sarcocaulon (sometimes included in the genus Monsonia) are succulent species in the geranium family. They are found in the deserts of southern Africa. These plants have become popular among the cactus and succulent growers. The genus which most of our members grow is called Pelargonium.

More information on names  What Does That Mean?  More on the Meanings of Pelargonium species names (03/03/14)

Comments on Geraniums and Pelargoniums

The Identification of the Genus Pelargonium by Cliff Blackman                      Latin for Gardeners

 


                                           

        Pelargonium                      Erodium                       Geranium                     Monsonia*                     Sarcocaulon**

                                     A dicotomous key to the genera in Geraniaceae

1.  Flowers irregular  (the upper two petals different in shape and/or size from the lower three) ;

     hypanthium present, (fertile stamens fewer than 10) ......................................................................  Pelargonium

1.  Flowers regular (all petals more of less the same in shape and size);  no hypanthium .............     2

 

2.  Stamens 10 or fewer   .......................................................................................................................     3

2.  Stamens more than 10 .....................................................................................................................      4

 

3.  Fertile stamens  5        .....................................................................................................................     Erodium

3.  Fertile stamens 10      .....................................................................................................................     Geranium

 

4.  Stamens 15:  plant herbaceous; stems not spiny    ......................................................................    Monsonia   

4. Stamens 15: plant succulent; stems spiny,    .................................................................................    Sarcocaulon 

                            * Monsonia image from www.metafro.be       ** Sarcocaulon image from www.aztekium.narod.ru


Introduction to the Genus, Pelargonium    Pelargonium for Beginners     Sections of Pelargonium

More on the Meanings of Pelargonium species names 

Pelargonium Section Ciconium              Pelargonium  Section Pelargonium                  Pelargonium  Sections Polyactium & Cortusina

 Section Reniformia

An important genus in the Geranium Family (Geraniaceae) is Pelargonium.  Pelargoniums are still called                                              "geraniums" by most gardeners and nurseries.    Pelargonium includes an amazing variety of plant cultivars,                                             many important elements in a colorful garden and/or landscape.   Plants which share distinctive characteristics                                              are divided into groups in the genus Pelargonium

 Regals or Martha Washingtons

Photogallery of the Regal Preservation Project

Martha Washington (Regal) Geraniums  by Jim Zemcik     

 

Zonals   Cliff Blackman  Zonartic Pelargoniums and Yellow-Flowered Geraniums  

The Others. The Very Varied Zonal Pelargoniums/ 'Geraniums'  

 Formosum Hybrids by Annette Andersson  Part 1Part 2 

The Other Zonal Pelargoniums- 2. Tulip-Flowered Pelargoniums  

 The Other Zonal Pelargoniums - 1. Mr. Wren

(Stem) Succulents and Geophytes         A new cultivar Pelargonium x hortorum 'Jean Byrne'

                   

Ivies

 Ivy Geraniums   

Everything You Wanted to Know About Ivy 'Geraniums' Pelargoniums

               

Angels or Pansy-Face   

 

 

Fancy Leaved         

  Fancy Leaf Pelargoniums       

 

 Scenteds     Uniques

Descriptions of Cultivars:       'Clorinda'        'Paton's Uniques'      ''Wildwood' 

Scented Geraniums    New Cultivars of Pelargonium,  'Moras Shubert' & 'Erne Shubert'

and, finally, Species and Species Hybrids

   Pelargonium cordifolium                 P. oblongatum                P. sidoides                                                                             

   Lemon-scented geranium species        Rose-scented geranium species                                 

                                   Erodium trifolium       

© 2017, Central Coast Geranium Society (CCGS )