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FOC | Family List | FOC Vol. 10 | Fabaceae | Trifolium

1. Trifolium lupinaster Linnaeus, Sp. Pl. 2: 766. 1753.

野火球 ye huo qiu

Trifolium lupinaster f. albiflorum (Seringe) P. Y. Fu & Y. A. Chen; T. lupinaster var. albiflorum Seringe.

Perennial herbs, glabrous to slightly pubescent. Stems erect, 30-60 cm, unbranched or branched above. Leaves pal­mately (3-)5(-9)-foliolate; stipules adnate to petiole for most of their length, membranous, apex long triangular; petiolule ca. 1 mm; leaflets lanceolate to linear-oblong, 25-50 × 5-16 mm, lateral veins 50 or more pairs, running to serrulate margin, base narrowly cuneate, apex acute or obtuse. Flowers 20-35, in ter­minal or axillary heads subtended by a membranous, caducous involucre; peduncle 1-3(-5) cm. Calyx 6-10 mm, sparsely pu­bescent, veins 10; teeth filiform, 1-2 × length of tube. Corolla purple or white, (10-)12-20 mm. Ovary stipitate, glabrous; ovules 5-9. Legume gray-brown, oblong, 6-10 × 2-3 mm; style persistent. Seeds (2 or)3-9, brown, ovoid, 1.5-2 mm, smooth. Fl. and fr. Jun-Oct.

Forest margins, hillsides, grasslands, moist lowlands. Hebei, Hei­longjiang, Jilin, Liaoning, Nei Mongol, Shanxi, Xinjiang [Japan, Korea, Mongolia, Russia; E Europe].


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