Difference between revisions of "Myagrum"
Sp. Pl. 2: 640. 1753.
Gen. Pl. ed. 5, 289. 1754.
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|distribution=s Europe;sw Asia;introduced also in Africa;Australia. | |distribution=s Europe;sw Asia;introduced also in Africa;Australia. | ||
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|discussion=<p>Species 1.</p> | |discussion=<p>Species 1.</p> | ||
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|publication year=1753;1754 | |publication year=1753;1754 | ||
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|tribe=Brassicaceae tribe Isatideae | |tribe=Brassicaceae tribe Isatideae | ||
|genus=Myagrum | |genus=Myagrum | ||
Latest revision as of 22:37, 5 November 2020
Annuals; not scapose; (glaucous), glabrous. Stems erect, branched distally. Leaves basal and cauline; petiolate or sessile; basal (soon withered), not rosulate, petiolate, blade margins pinnatifid, runcinate, sinuate, or dentate; cauline blade (base auriculate, sagittate, or amplexicaul), margins entire or denticulate. Racemes (corymbose, several-flowered), considerably elongated in fruit. Fruiting pedicels appressed to rachis, stout. Flowers: sepals oblong to ovate, lateral pair subsaccate basally; petals oblong to oblanceolate, (slightly longer than sepals), claw undifferentiated from blade, (apex obtuse); stamens tetradynamous; filaments not dilated basally; anthers oblong, (apex obtuse); nectar glands (4) lateral, and (2) median (sometimes obscurely confluent with lateral). Fruits silicles, sessile, obpyriform to clavate-obcordiform, (woody, broadest distal to middle), slightly angustiseptate; (seed-bearing locule basal, 1 (or 2)-seeded, distal 2 locules seedless); replum rounded; ovules 2 per ovary; style distinct, (flattened, triangular); stigma capitate. Seeds plump, not winged, oblong to ovoid; seed coat not mucilaginous when wetted; cotyledons incumbent. x = 7.
Distribution
Introduced; s Europe, sw Asia, introduced also in Africa, Australia.
Discussion
Species 1.
Selected References
None.