PlantNET Home PlantNET Home | Search NSW Flora | Contact Us  
FloraOnline
Introduction
Plant Name Search
Index Search
Spatial Search
Identification Keys
Classification
Glossary
HerbLink (Type Images)
WeedAlert
Other PlantNET Sites
Other Data Sources
NEW SOUTH WALES FLORA ONLINE Printable Page

Family Geraniaceae

Description: Annual or perennial herbs or shrubs, with simple often glandular hairs.

Leaves opposite or alternate, simple and mostly variously toothed or lobed or occasionally compound; petiolate, stipulate.

Inflorescences terminal cymose umbels, or flowers paired or solitary. Flowers actinomorphic or zygomorphic, bisexual, usually 5-merous. Sepals 5, ± mucronate, sometimes basally fused and prolonged into a basal nectariferous spur, persistent and often slightly enlarged in fruit. Petals 5, free, imbricate. Stamens usually 10 in 2 whorls, a varying number sterile; anthers 2-locular, dehiscing by longitudinal slits, introrse. Ovary superior, usually 5-locular and 5-lobed; ovules 2 in each loculus; style 5-lobed.

Fruit a schizocarp [or capsule] separating into 5 mericarps, each 1-seeded and surmounted by an awn which separate from the central column of the style.


Distribution and occurrence: World: 7 genera, c. 750 species, cosmopolitan, widespread in temperate regions and higher altitudes in tropical regions. Australia: 3 genera, c. 36 species, all States.

External links:
Angiosperm Phylogeny Website (Family: Geraniaceae, Order: Geraniales)
Wikipedia

A number of species are cultivated as ornamental plants, and some of these have escaped and have become naturalized. Note: fruit measurements include the mericarp plus the awn.

Text by G. J. Harden
Taxon concept:

 Key to the genera 
1Inflorescences consistently 1- or 2-flowered; fertile stamens 10; awn of fruit glabrous on inner surfaceGeranium
Inflorescences usually more than 2-flowered; fertile stamens 3–8; awn of fruit hairy on inner surface2
2Flowers more or less actinomorphic with no sepaline spur; fertile stamens 5 and flowers commonly blue, purple, pink to mauve or rarely white; inflorescences 1–7-floweredErodium
Flowers more or less zygomorphic with posterior sepal prolonged into a nectariferous spur fused to pedicel (sometimes small and difficult to see in dried material); flowers pink and either fertile stamens 6–8, or if fertile stamens 3–5 then inflorescences usually more than 6-flowered; inflorescences 2–14-flowered
                       Back to 1
Pelargonium

  Privacy | Copyright | Disclaimer | About PlantNET | Cite PlantNET