Melilotus sulcatus |
Melilotus wolgicus |
|
---|---|---|
furrowed melilot, grooved melilot, Mediterranean sweetclover |
sweetclover, volga sweet-clover |
|
Habit | Herbs annual, 10–70 cm. | Herbs biennial, 40–120(–150) cm. |
Stems | erect or ascending. |
erect. |
Leaves | stipules ovate-acuminate or subulate, 5–10 mm, margins dentate (mostly at base); leaflet blades obovate, oblanceolate, or oblong-cuneate, 10–25 × 5–12 mm, margins dentate. |
stipules linear-setaceous or subulate, 6–8(–10) mm, margins entire; leaflet blades rhombic-ovate to oblong-lanceolate, or linear, 10–30 × 2–8 mm, margins dentate or entire. |
Racemes | (5–)8–20(–50)-flowered. |
25–60-flowered. |
Pedicels | 1–2 mm. |
2–4 mm. |
Flowers | (2.5–)3–4(–8) mm; corolla yellow; ovary glabrous. |
3–3.5 mm; corolla white; ovary glabrous. |
Legumes | globose or ovoid, (2–)3–4(–5.5) mm, concentrically striate-veined, glabrous. |
obovoid, 4–5 mm, distinctly reticulate-veined, glabrous. |
Seeds | 1(or 2), oblong-subglobose or ovoid, (2–)2.5–3(–3.5) mm. |
usually 1 (or 2), oblong-ovoid, 2.5 mm. |
2n | = 16 [Eurasia]. |
= 16 [Eurasia]. |
Melilotus sulcatus |
Melilotus wolgicus |
|
Phenology | Flowering spring–summer. | Flowering spring–summer. |
Habitat | Ruderal areas. | Gravel pits, wasteland, drainage ditches, sandy banks. |
Elevation | 0–200 m. (0–700 ft.) | 200–500 m. (700–1600 ft.) |
Distribution |
AL; NJ; PA; Europe; Asia; Africa [Introduced in North America] |
MB; SK; Eurasia [Introduced in North America] |
Discussion | In Europe, Melilotus sulcatus appears to intergrade or at least hybridize with M. infestus Gussone [M. sulcatus subsp. infestus (Gussone) Bonnier & Layens] and M. segetalis (Brotero) Seringe [M. sulcatus subsp. segetalis (Brotero) P. Fournier]. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
The Manitoba vouchers of Melilotus wolgicus are mostly G. A. Stevenson collections at DAO from the Brandon area and are almost certainly established escapes from the extensive experimental cultivation of Melilotus species by Stevenson; it has also been observed persisting in the forage plot area of the Research Station, Saskatoon, Saskatchewan, but does not appear to have spread elsewhere. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Trigonella sulcata | |
Name authority | Desfontaines: Fl. Atlant. 2: 193. (1799) — (as sulcata) | Poiret in J. Lamarck et al.: Encycl., suppl. 3: 648. (1814) — (as wolgica) |
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