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Lobelia elongata Small. Common name: Longleaf Lobelia. Phenology: Aug-Oct. Habitat: River and stream margins, floodplain forests, marshes, tidal marshes, bogs, pine savannas. Distribution: Primarily a Southeastern Coastal Plain endemic from DE to se. GA, rarely inland onto the lower Piedmont of NC and SC.

Origin/Endemic status: Endemic

Synonymy : = C, F, G, GW2, K4, S, Tat, Va, McVaugh (1936a), Spaulding & Barger (2016); = Lobelia glandulosa Walter var. glabra A.DC.; < Lobelia elongata Small — RAB. Basionym: Lobelia elongata Small 1903

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL (taxonomic split from wetland indicator species)
  • Eastern Mountains and Piedmont: OBL (taxonomic split from wetland indicator species)

Heliophily : 7

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image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect perennial of river and stream margins, floodplain forests, marshes, bogs and pine savannas.

Stems: Stems mostly unbranched, smooth.

Leaves: Leaves alternate, lance-oval to lance-shaped, to 4 in. long, usually sharply toothed and smooth.

Inforescence:

Flowers: Flowers in a narrow, terminal spike (flowers mostly on one side), each on a short stalk with 2 narrow bracts at the base; blue; bilaterally symmetric and tubular; opening to 2 spreading lips, the upper one smaller and 2-lobed, the lower one 3-lobed. The calyx is also tubular with 5 spreading, linear lobes ("teeth").

Fruits: Fruit a rounded capsule.

Comments: Primarily a Southeastern Coastal Plain endemic, rarely found inland (lower Piedmont, NC and SC).

Height: 1-4 ft.

plant sale text: Lobelia elongata is an excellent plant to include in a rain garden. Native along the coastal plain from Delaware to Louisiana, this plant does not mind a wet spot and can handle periodic inundation as a matter of course. The leaves are slender and grass-like. Its characteristic stick-out-your-tongue medium blue flowers are not as large as those of its showier kin, but the color more than makes up for the size difference.

bloom table text:

description: Erect perennial of river and stream margins, floodplain forests, marshes, bogs and pine savannas.

stems: Stems mostly unbranched, smooth.

leaves: Leaves alternate, lance-oval to lance-shaped, to 4 in. long, usually sharply toothed and smooth.

inflorescence:

flowers: Flowers in a narrow, terminal spike (flowers mostly on one side), each on a short stalk with 2 narrow bracts at the base; blue; bilaterally symmetric and tubular; opening to 2 spreading lips, the upper one smaller and 2-lobed, the lower one 3-lobed. The calyx is also tubular with 5 spreading, linear lobes ("teeth").

fruits: Fruit a rounded capsule.

comments: Primarily a Southeastern Coastal Plain endemic, rarely found inland (lower Piedmont, NC and SC).

cultural notes:

germination code:

native range: southeastern United States



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