Steironema lanceolatum (Walter) Gray. Common name: Lanceleaf Loosestrife. Phenology: May-Aug; Sep-Oct. Habitat: Mesic to relatively dry forests, mafic and calcareous fens, bogs, forest edges, roadbanks, primarily on circumneutral soils. Distribution: NJ, PA, OH, MI, and WI south to GA, Panhandle FL, AL, MS, LA, and ne. TX.
Origin/Endemic status: Native
Synonymy ⓘ: = G, Il; = Lysimachia lanceolata Walter — Ar, C, Can, F, FNA8, K4, Mi, Mo3, NcTx, Pa, Tat, Tn, Tx, Va, W, WV, Coffey & Jones (1980), Estes, Shaw, & Mausert-Mooney (2015); = Lysimachia lanceolata Walter var. lanceolata — GW2, RAB, WH3; < Lysimachia lanceolata Walter — Fl5; > Steironema heterophyllum (Michx.) Baudo — S, S13; > Steironema lanceolatum (Walter) Gray — S, S13; Lysimachia lanceolata Walter. Basionym: Lysimachia lanceolata Walter 1788
Links to other floras: = Lysimachia lanceolata - FNA8
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FAC (name change)
- Eastern Mountains and Piedmont: FAC (name change)
- Great Plains: FAC (name change)
- Midwest: FAC (name change)
- Northcentral & Northeast: FAC (name change)
Heliophily ⓘ: 7
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© Bruce A. Sorrie | Original Image ⭷
© Jim Fowler | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
© Alan Cressler: Lysimachia lanceolata, Track Rock Seeps, Union County, Georgia 2 by Alan Cressler source | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Joey Shaw source | Original Image ⭷Feedback
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Horticultural Information
Intro: Erect-ascending, rhizomatous perennial found in moist to relatively dry forests, mafic and calcareous fens, bogs, forest edges and road banks, primarily on circumneutral soils.
Stems: Stems simple or with ascending branches, sometimes reclining and rooting at nodes.
Leaves: Leaves opposite (whorled near top), petiolate or sessile, linear to lance-shaped with tapering base; margins sometimes hairy and leaves lighter green beneath when young.
Inforescence:
Flowers: Flowers nod on slender stalks arising from upper leaf axils, 1-4 per axil; yellow; about 3/4 in. wide; consisting of 5 spreading, round, ragged-edged petals with reddish bases, 5 lance-shaped sepals and 5 yellowish-orange stamens.
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Height: 1-2 ft.
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bloom table text:
description: Erect-ascending, rhizomatous perennial found in moist to relatively dry forests, mafic and calcareous fens, bogs, forest edges and road banks, primarily on circumneutral soils.
stems: Stems simple or with ascending branches, sometimes reclining and rooting at nodes.
leaves: Leaves opposite (whorled near top), petiolate or sessile, linear to lance-shaped with tapering base; margins sometimes hairy and leaves lighter green beneath when young.
inflorescence:
flowers: Flowers nod on slender stalks arising from upper leaf axils, 1-4 per axil; yellow; about 3/4 in. wide; consisting of 5 spreading, round, ragged-edged petals with reddish bases, 5 lance-shaped sepals and 5 yellowish-orange stamens.
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