Solanum dulcamara

Illustrator: Yevonn Wilson-Ramsey

Copyright: Flora of North America Association

Vines, climbing or scrambling, herbaceous or woody, unarmed, to 8–10 m, sparsely to densely pubescent, hairs unbranched and/or dendritic, rarely gla­brous. Leaves petio­late; petiole 0.5–5 cm; blade simple, elliptic or ovate to cordate, 2.5–12 × 1.2–9 cm, margins entire to deeply pinnatifid and usually 3-lobed near base, lobe margins entire, base truncate to cordate. Inflorescences terminal or lateral, extra-axillary, much-branched, 7–40-flowered, (1–)4–15 cm. Pedicels inserted into a small sleeve on the inflorescence axis, 0.6–1.2 cm in flower and fruit. Flowers radially symmetric; calyx not accrescent, unarmed, 1–2 mm, glabrous to densely pubescent, lobes triangular, shallow; corolla purple (rarely white), with green and white shiny spots at base of each lobe, deeply stellate, 1.5–2 cm diam., without interpetalar tissue; stamens equal; anthers oblong, slightly tapered, 4.5–6 mm, dehiscent by terminal pores that often open into longitudinal slits; ovary glabrous. Berries bright shiny red, globose to ellipsoidal, 0.5–1.5 × 0.5–1 cm, glabrous, without sclerotic granules. Seeds pale yellow or tan, flattened, 2–3 mm diam., minutely pitted. 2n = 24.

Phenology: Flowering May–Nov.
Habitat: Weedy, in a wide variety of habitats, often associated with water.
Elevation: 0–2000 m.

Distribution

• Generated Map
• Legacy Map

B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Sask., Ala., Ariz., Calif., Colo., Conn., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., Maine, Md., Mass., Mich., Minn., Mo., Mont., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Oreg., Pa., R.I., S.Dak., Tenn., Utah, Vt., Va., Wash., W.Va., Wis., Wyo., Eurasia.

Discussion

Solanum dulcamara is widely distributed across Eurasia and boreal North America. The North American populations are thought to be introductions, but it is possible that the species has a truly circum­boreal distribution. A white-flowered form has been recog­nized by some authors as S. dulcamara forma albiflorum House and an especially pubescent form as S. dulcamara var. villosissimum, but variation in a number of morphological features is continuous across the range of the species and these and other variants are not recognized in the latest monograph of the group (S. Knapp 2013).

Selected References

None.

Lower Taxa

None.