Raphanus
Brassicaceae tribe Brassiceae
radish
erect, unbranched or branched.
basal and cauline;
petiolate or subsessile;
basal not rosulate, petiolate, blade margins lyrately lobed or pinnatifid to pinnatisect;
cauline shortly petiolate or subsessile, blade (base not auriculate), margins dentate or lobed, (smaller and fewer-lobed than basal).
petiolate or sessile;
blade base auriculate or not, margins entire, dentate, serrate, or pinnately lobed.
absent or simple.
(corymbose, several-flowered), usually greatly elongated in fruit.
usually ebracteate, often elongated in fruit.
sepals erect, narrowly oblong [linear], lateral pair slightly saccate basally;
petals white, creamy white, yellow, pink, or purple [lilac] (usually with darker veins), broadly obovate [suborbicular], claw differentiated from blade, (± longer than sepals, apex obtuse or emarginate [rounded]);
stamens strongly tetradynamous;
filaments not dilated basally;
anthers oblong or oblong-linear, (apex obtuse);
nectar glands (4), median pair present.
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.
divaricate, ascending, or spreading [reflexed].
siliques or silicles, indehiscent, sessile, segments 2, (lomentaceous, often breaking into 1-seeded units), cylindrical, fusiform, lanceolate, or ovoid, [linear, oblong, ellipsoid], smooth or torulose to strongly moniliform, (constricted or not between seeds), terete or polygonal; (valvular segment seedless, rudimentary, or aborted, nearly as wide as pedicel; terminal segment several-seeded, corky);
valves glabrous, antrorsely scabrous, or hispid;
replum and septum not differentiated;
ovules 2–22 per ovary; (style slender);
stigma capitate, slightly 2-lobed.
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).
uniseriate, plump, not winged, oblong, ovoid, or globose [subglobose];
seed coat (nearly smooth to reticulate), not mucilaginous when wetted;
cotyledons conduplicate.
biseriate, uniseriate, or aseriate;
cotyledons usually conduplicate, rarely accumbent or incumbent (in Cakile).
= 9.
Raphanus
Brassicaceae tribe Brassiceae
Species 3 (2 in the flora).
Natural hybridization between Raphanus raphanistrum and R. sativus has been known since 1788, and the hybrid has been named R. ×micranthus (Uechtritz) O. E. Schulz. The transfer of some of the weedy characters from R. raphanistrum to R. sativus through natural hybridization may have played a major role in converting the latter from a crop plant into a successful weed near the coastal areas of central California (C. A. Panetsos and H. G. Baker 1968). Raphanus confusus (Greuter & Burdet) Al-Shehbaz & Warwick is known from Asia (Israel, Lebanon).
(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.)
1. Petals pale or creamy white; fruits (2.5-)3-8(-11) mm wide, strongly constricted between seeds and usually breaking, strongly ribbed, beak narrowly conical. | R. raphanistrum |
1. Petals usually purple or pink, sometimes white; fruits (5-)7-13(-15) mm wide, rarely slightly constricted between seeds and usually not breaking, not ribbed, beak narrowly to broadly conical to linear. | R. sativus |
CA
OR
WA
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WildflowerSearch
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