The family Geraniaceae consists primarily of temperate annual
and perennial herbs. These platns are known mostly for ornamental
geraniums which belong to the genus Pelargonium.
Members of the Geraniaceae are usually herbs, sometimes subshrubs
and often have stems that are jointed and leaves that are
frequently covered with glandular hairs. The leaves vary quite
a bit, from simple to compound, alternate to opposite.
The flowers are bisexual and radially symmetric to somewhat
bilaterally symmetric. There are usually 5 separate sepals
and petals. One or more of the petals may have a nectar spur.
There are 1-3 whorls of stamens and/or staminodes which are
usually fused at the base of the filaments. The ovary is superior
and usually of 5 united carpels fused around a central axis.
Although the styles are fused to the carpophore, the stigmas
are free. At maturity, the styles elongate and the carpels
bend up and away from the base of the carpophore, flinging
the seeds out in the process. The elongate, persistent styles
are very characteristic for the family.
Guide to Identify Presented Species of the
Erodium cicutarium - Stork's Bill Geranium Annual, 3-30 cm tall, stems usually reddish. Drier plains and hillsides.
Flowers pink, 10-15 mm broad, in small umbel-clusters on long stalks.
Leaves mostly basal, repeatedly pinnately divided into narrow segments.
viscosissimum - Sticky Purple Geranium Stems 40-90 cm tall, with sticky glandular
hairs. Drier grasslands and forests.
Flowers pink-purple, 30-40 mm wide. Several in open, branching
Leaves mainly basal, deeply palmately cut into 5-7 cut and
Alphabetical listing with links to presented species of the Geranium family: