Geranium robertianum L.
Robert Geranium, Herb Robert
Geraniaceae (Geranium Family)
USDA Symbol: GERO
Paired, pink to lavender flowers on stalks rising in axils of intricately divided leaves on hairy, reddish, branching stems.
This European introduction, naturalized in North America, is an especially attractive member of the geranium family, but the leaves have an unpleasant odor when crushed. It is variously reported to have been named for Saint Robert of Molesme, whose festival date in April occurs at about the time the flowers bloom in Europe, or for Robert Goodfellow, who is known as Robin Hood.
From the Image Gallery
Bloom InformationBloom Color: Pink , Purple
Bloom Time: May , Jun , Jul , Aug , Sep , Oct
DistributionUSA: AK , CA , CT , IL , IN , MA , MD , ME , MI , MO , NH , NJ , NY , OH , OR , PA , RI , TN , VA , VT , WA , WI , WV
Canada: NB , NL , NS , PE
Native Distribution: Ontario east to Newfoundland, south to Virginia and Tennessee, west to Missouri, and north to Wisconsin; also from Alaska south to California.
Native Habitat: Ravines and rocky woods.
BenefitConspicuous Flowers: yes
National Wetland Indicator Status
Additional resourcesUSDA: Find Geranium robertianum in USDA Plants
FNA: Find Geranium robertianum in the Flora of North America (if available)
Google: Search Google for Geranium robertianum
MetadataRecord Modified: 2018-03-08
Research By: TWC Staff