Raphanus sativus |
Brassicaceae tribe Brassiceae |
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cultivated radish, garden radish, jointed charlock, radish, wild radish |
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Habit | Annuals or biennials, roots often fleshy in cultivated forms; often sparsely scabrous or hispid, sometimes glabrous. | Annuals, biennials, or perennials [shrubs]; eglandular. |
Stems | often simple from base, (1–)4–13 dm. |
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Basal leaves | petiole 1–30 cm; blade oblong, obovate, oblanceolate, or spatulate in outline, lyrate or pinnatisect, sometimes undivided, 2–60 cm × 10–200 mm, margins dentate, apex obtuse or acute; lobes 1–12 each side, oblong or ovate, to 10 cm × 50 mm. |
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Cauline leaves | (distal) subsessile; blade often undivided. |
petiolate or sessile; blade base auriculate or not, margins entire, dentate, serrate, or pinnately lobed. |
Racemes | usually ebracteate, often elongated in fruit. |
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Flowers | sepals 5.5–10 × 1–2 mm, glabrous or sparsely pubescent; petals usually purple or pink, sometimes white (veins often darker), 15–25 × 3–8 mm, claw to 14 mm; filaments 5–12 mm; anthers 1.5–2 mm. |
actinomorphic; sepals erect, ascending, or spreading, lateral pair saccate or not basally; petals white, cream, yellow, pink, lilac, lavender, or purple, claw present, often distinct; filaments unappendaged, not winged; pollen 3-colpate. |
Fruiting pedicels | spreading to ascending, 5–40 mm. |
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Fruits | usually fusiform or lanceolate, sometimes ovoid or cylindrical; valvular segment 1–3.5 mm; terminal segment (1–)3–15(–25) cm × (5–)7–13(–15) mm, smooth or, rarely, slightly constricted between seeds, not ribbed, beak narrowly to broadly conical to linear; style 10–40 mm. |
silicles or siliques, dehiscent or indehiscent, usually segmented, usually latiseptate or terete (subterete or 4-angled in Erucastrum) [angustiseptate]; ovules (1–)2–276[–numerous] per ovary; style usually distinct (absent in Cakile, obscure in Carrichtera, obsolete in Eruca); stigma entire or strongly 2-lobed (sometimes slightly 2-lobed in Cakile). |
Seeds | globose or ovoid, 2.5–4 mm diam. 2n = 18. |
biseriate, uniseriate, or aseriate; cotyledons usually conduplicate, rarely accumbent or incumbent (in Cakile). |
Trichomes | absent or simple. |
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Raphanus sativus |
Brassicaceae tribe Brassiceae |
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Phenology | Flowering May–Jul. | |
Habitat | Roadsides, disturbed areas, waste places, cultivated fields, gardens, orchards | |
Elevation | 0-1000 m (0-3300 ft) | |
Distribution |
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; BC; MB; NB; NL; NS; ON; PE; QC; SK; Europe; Asia [Introduced in North America; introduced also in Mexico, Bermuda, South America, Africa, Atlantic Islands, Australia]
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North America; Eurasia; n Africa [Introduced widely] |
Discussion | Raphanus sativus is an important crop plant that is cultivated and/or weedy in most temperate regions worldwide. It is unknown as a wild plant, but suggested to be derived from R. raphanistrum subsp. landra, which is endemic to the Mediterranean region (L. J. Lewis-Jones et al. 1982). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Genera 46, species ca. 245 (13 genera, 28 species in the flora). The generic boundaries in Brassiceae are largely artificial, and the number of genera may be substantially reduced. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 439. | FNA vol. 7, p. 419. |
Parent taxa | Brassicaceae > tribe Brassiceae > Raphanus | Brassicaceae |
Sibling taxa | ||
Subordinate taxa | ||
Name authority | Linnaeus: Sp. Pl. 2: 669. (1753) | de Candolle: Mém. Mus. Hist. Nat. 7: 242. (1821) |
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