Lobelia siphilitica var. siphilitica
Family: Campanulaceae
great blue lobelia
Lobelia siphilitica var. siphilitica image
Dan Tenaglia  
Etymology: Lobelia: after Matthias de l'Obel (1538-1616), a Flemish botanist; also written as Matthias von Lobel
Plants: erect, perennial, 1'-4' tall forb, slightly hairy
Leaves: thin, mostly oblong, narrowing towards the stalkless base, mostly more than 3/4" wide
Flowers: 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.
Habitat: full to partial sun; wet to moist; meadows, streambanks, shores; in sandy, loamy soil
Conservation Status: Native
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