Myagrum |
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myagrum |
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Habit | 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. |
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). |
Fruiting pedicels | appressed to rachis, stout. |
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. |
Myagrum |
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Distribution |
[Introduced in North America; s Europe, sw Asia, introduced also in Africa, Australia] |
Discussion | Species 1. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 568. |
Parent taxa | |
Subordinate taxa | |
Name authority | Linnaeus: Sp. Pl. 2: 640. (1753): Gen. Pl. ed. 5, 289. (1754) |
Web links |