Melilotus wolgicus |
Melilotus officinalis |
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sweetclover, volga sweet-clover |
common melilot, field or rib or yellow melilot, rib melilot, sweetclover, yellow melilot, yellow sweet-clover |
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Habit | Herbs biennial, 40–120(–150) cm. | Herbs usually biennial, sometimes annual, (15–)30–280 cm. |
Stems | erect. |
decumbent to erect. |
Leaves | 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. |
stipules lanceolate or subulate, 3–6(–12) mm, margins entire; leaflet blades obovate, obovate-oblong, ovate, or ovate-lanceolate, 8–25 × 4–15 mm, margins dentate. |
Racemes | 25–60-flowered. |
30–70(–80)–flowered. |
Pedicels | 2–4 mm. |
(1.5–)2–2.5 mm. |
Flowers | 3–3.5 mm; corolla white; ovary glabrous. |
4–7 mm; corolla yellow; ovary glabrous. |
Legumes | obovoid, 4–5 mm, distinctly reticulate-veined, glabrous. |
ovoid, 2.5–5 mm, transversely rugose, areoles notably elongated, glabrous. |
Seeds | usually 1 (or 2), oblong-ovoid, 2.5 mm. |
1 (or 2), ovoid, obovoid, or ellipsoid, (1.5–)1.8–2(–2.5) mm. |
2n | = 16 [Eurasia]. |
= 16. |
Melilotus wolgicus |
Melilotus officinalis |
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Phenology | Flowering spring–summer. | Flowering spring–fall. |
Habitat | Gravel pits, wasteland, drainage ditches, sandy banks. | Grasslands, slopes, plains, hillsides, waste places, roadsides, cultivated fields. |
Elevation | 200–500 m. (700–1600 ft.) | 0–3100 m. (0–10200 ft.) |
Distribution |
MB; SK; Eurasia [Introduced in North America] |
AK; AL; AR; AZ; CA; CO; CT; DC; DE; FL; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; MT; NC; ND; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; SD; TN; TX; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NL; NS; NT; ON; PE; QC; SK; YT; Eurasia [Introduced in North America; introduced also in Mexico, South America, Africa, Australia]
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Discussion | 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.) |
Melilotus officinalis is occasionally grown as a forage crop, but it is generally considered to be an undesirable weed. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Trifolium officinale, Trigonella officinalis | |
Name authority | Poiret in J. Lamarck et al.: Encycl., suppl. 3: 648. (1814) — (as wolgica) | (Linnaeus) Lamarck: Fl. Franç. 2: 594. (1779) |
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