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FOC | Family List | FOC Vol. 8 | Brassicaceae | Lepidium

1. Lepidium campestre (Linnaeus) R. Brown in W. T. Aiton, Hortus Kew. 4: 88. 1812.

绿独行菜 lu du xing cai

Thlaspi campestre Linnaeus, Sp. Pl. 2: 646. 1753.

Herbs annual or biennial, (8-)12-50(-60) cm tall, densely hirsute with spreading trichomes. Stems erect, simple or branched above. Basal leaves rosulate; petiole (0.5-)1.5-6 cm; leaf blade oblanceolate or oblong, (1-)2-6(-8) × 0.5-1.5 cm, base attenuate, margin entire, pinnatifid, or lyrate, apex obtuse or subacute. Cauline leaves sessile; leaf blade oblong, lanceolate, or narrowly deltoid-lanceolate, (0.7-)1-4(-6.5) cm × (2-)5-10(-15) mm, base sagittate or auriculate, margin dentate or subentire, apex acute to subobtuse. Fruiting pedicels slender, horizontal, (3-)4-8(-10) mm, pubescent. Sepals oblong, (1-)1.3-1.8 mm, erect to ascending, pubescent or glabrous. Petals white, spatulate, (1.5-)1.8-2.5(-3) × (0.2-)0.5-0.7 mm, base clawed, apex rounded. Stamens 6; filaments (1.2-)1.5-1.8(-2) mm; anthers oblong, 0.3-0.5 mm. Fruit ovate or broadly oblong, curved adaxially above middle, (4-)5-6(-6.5) × (3-)4-5 mm, winged distally, apex emarginate; valves vesicled; wings 1-2 mm; style united basally with wings, free portion 0.2-0.5(-0.7) mm, included in apical notch. Seeds dark brown, oblong, 2-2.3(-2.8) × 1-1.3 mm, papillate, wingless; cotyledons incumbent. Fl. May-Jun, fr. Jun-Aug. 2n = 16.

Fields, roadsides, pastures, waste grounds, disturbed sites, mountain slopes. Heilongjiang, Liaoning, Shandong [Russia; SW Asia, Europe; introduced elsewhere].


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