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Published In: Species Plantarum 1: 147–148. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 9/1/2017)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Native

 

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1. Lysimachia ciliata L. (fringed loosestrife)

Steironema ciliatum (L.) Baudo

S. pumilum Greene

Pl. 509 e, f; Map 2321

Plants with long, slender rhizomes. Stems 40–120 cm long, erect or strongly ascending, relatively stout, unbranched or branched toward the tip, glabrous or minutely glandular-hairy toward the tip, especially near the nodes. Basal leaves not persistent at flowering. Stem leaves opposite or occasionally in whorls of 3 at the uppermost nodes, with a well-defined petiole (0.5–)1.0–5.0 cm long, this somewhat flattened, narrowly winged, the margins evenly pubescent with long, spreading hairs the entire length. Leaf blades 3–13 cm long, 2–5 cm wide, ovate to broadly lanceolate, rounded, angled, or occasionally shallowly cordate at the base, angled or somewhat tapered to a sharply pointed tip, the margins short-hairy, the surfaces lacking gland dots, not punctate, the upper surface dark green to green, glabrous or nearly so, the undersurface light green, sparsely short hairy or glabrous; secondary veins evident. Inflorescences axillary from the uppermost nodes, of solitary flowers, the flower stalks 2–5(–8) cm long, minutely glandular-hairy. Calyces mostly 5-lobed, the lobes 4–9 mm long, narrowly triangular to lanceolate, not gland-dotted or punctate, sometimes reddish-veined. Corollas mostly 5-lobed, the lobes 5–12 mm long, obovate, bluntly pointed at the tip or short-tapered to a minute, sharp point, the margins sometimes somewhat uneven or toothed, yellow, densely glandular and with reddish markings on the upper surface toward the base, lacking purple spots or lines. Stamens shorter than the corollas, the filaments 2–3 mm long, not fused into a basal tube, glandular-hairy. Staminodes alternating with the stamens, slender. Styles 3–4 mm long. Fruits 3.5–6.5 mm long, broadly ovoid to globose. Seeds 1.9–2.2 mm long, irregularly elliptic, oblong, or rhombic in outline, triangular in cross-section, dark brown to black. 2n=34, 92, 96, 100, 108, 112. May–September.

Scattered nearly throughout the state (U.S. [including Alaska, excluding a few southwestern states], Canada). Banks of streams, rivers, and spring branches, swamps, margins of ponds and lakes, sloughs, bottomland forests, bottomland prairies, moist swales of upland prairies, and rarely wet deprseeions of glades; also ditches, levees, railroads, and roadsides.

 


 

 
 
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