Contains 3 accepted taxa overall.

Characteristics
Geranium L.
CRANESBILL
Classification
GERANIALES
Geranium
Citation
GERANIUM Linnaeus, Sp. Pl. 676. 1753.
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TYPE: Geranium sylvaticum Linnaeus Lectotypified by Hanks & Small, in Britton, N. Amer. Fl. 25: 4. 1907.
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Geranium bicknellii BICKNELL'S CRANESBILL Not Native
Geranium carolinianum CAROLINA CRANESBILL Native
Geranium maculatum SPOTTED GERANIUM Native Endangered-State FACU (NWPL)
[Family identification key]
1.  Perennial with a creeping rhizome; larger leaf blades 7.5-16 cm wide; petals 12-18 mm long
1.  Annual, without a rhizome; larger leaf blades 2-6 cm wide; petals 4-6 mm long
2
2.  Fruiting pedicels >2 times longer than the calyx; sepals awn-tipped; beak of mature style column 2-6 mm long seed surface reticulate-alveolate
2.  Fruiting pedicels shorter than the calyx; sepals with a minute callous tip; beak of the mature style column 1-2 mm long; seed surface smooth or with irregular rows of alveolae
Genus Synonyms
Synonym Full Citation Basionym Type
Robertiella Robertiella Hanks, in Britton, N. Amer. Fl. 25: 3. 1907. TYPE: Robertiella robertianum (Linnaeus) Hanks (Geranium robertianum Linnaeus)
Robertium Robertium Picard, Mem. Soc. Agric. Boulogne, ser. 2. 1: 99. 1837. TYPE: Geranium tuberosum Linnaeus