Robert W. Freckmann Herbarium

  Lobelia siphilitica L. var. siphilitica image
Photographer: Dan Tenaglia           
Family Lobeliaceae
Lobelia siphilitica L. var. siphilitica
great blue lobelia
Lobelia: after Matthias de l'Obel (1538-1616), a Flemish botanist; also written as Matthias von Lobel
siphilitica: because once thought to cure syphillis
County distribution map- click for detailed distribution maps.
Detailed Distribution:
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Status: Native
Plant: erect, perennial, 1'-4' tall forb, slightly hairy
Flower: blue, 5-parted, 3/4"-1" long, irregularly shaped, top lip 2-parted, lower lip 3-parted; inflorescence a 4"-12" crowded, spike-like cluster (raceme) of more than 20 stalked flowers; blooms Aug.-Sept.
Leaf:thin, mostly oblong, narrowing towards the stalkless base, mostly more than 3/4" wide
Habitat: full to partial sun; wet to moist; meadows, streambanks, shores; in sandy, loamy soil

More Information Natural Communities Herbarium Specimens
All Lobelia list Google- Images or Text
Lobelia siphilitica L. f. albiflora Britton

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