University of Wisconsin-Madison | Botany Plant Growth Facilities


Botanical Garden

 

 

 

 

 

 

 

 

 

   Home

Introduction 

 History

  Plants Data 

Classification 

  Garden Arts

 Garden Photos

 Credits

 Become a Friend 

Geraniaceae

 

 

 
Classification

Kingdom: Plantae

Division: Magnoliophyta

Class: Magnoliopsida

Order Type: Eudicots-Unplaced Rosids

Order: Geraniales

Family: Geraniaceae

Family Common Name: Geranium Family

Genera: Geranium, Pelargonium

Defining Features: Some of the smaller genera have been grouped into their own families by some botanists. The family generally has aromatic, glandular hairs and has stems with swollen, jointed nodes.

Defining Morphology: Floral Features: The inflorescences are determinate, terminal, axillary in cymose and mostly umbellate. Flowers are 5-merous, often bisexual, and actinomorphic or a zygomorphic. Stamens with filaments united at the base. Style slender and beaked. Ovaries are superior with axile placentation. Fruit and Seed Features: Dicotyledon. Fruit a capsule or elastic dehiscent schizocarps, which curl at the beak. Vegetative Features: Mostly are herbs to sub-shrubs with jointed stem and stipule. Leaves are simple, alternate or opposite with palmately lobed, dissecated margin.

Distribution: Widespread in the subtropics and temperate regions of both hemispheres and reaching to the arctic and Antarctic regions.

Economic Use: As an extremely important cultivated annual species for gardens and outdoor pots. The family also contains many species with aromatic oils used in cosmetics, perfume and as an insect repellant. Many of the aromatic species have been cultivated as 'scented geraniums' and may smell like apple, mint, lemon, etc.

Number of Genera Globally: 7

Number of Species Globally: 750

Comments, Questions, Desire to Support: Contact Mo Fayyaz, Greenhouse/Garden Director.

File last updated: 2011.

Copyright © 2004 The Board of Regents of the University of Wisconsin System.