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FOC | Family List | FOC Vol. 13 | Lythraceae

4. Lythrum Linnaeus, Sp. Pl. 1: 446. 1753.

千屈菜属 qian qu cai shu

Authors: Haining Qin & Shirley A. Graham

Annual or perennial herbs or shrubs; young branches 4-angled. Leaves opposite, alternate, or 3-whorled, sessile or subsessile. Flowers in terminal spikes or racemes, whorled in cymes, paired, or solitary in axils, 6-merous, [mono-, di-, or] trimorphic, shortly pedicellate. Floral tube elongate, cylindric [rarely broadly campanulate], 6-12-angled or -veined; sepals 6, generally short; epicalyx present, sometimes longer than sepals. Petals [absent to] 6, purple, rose, pink [or white]. Stamens [2-6 or]12, in two whorls of different lengths. Ovary 2-loculed; style of three lengths with capitate stigma below, above, or between two stamen whorls. Capsule elongated, included within persistent floral tube, 2-valved, valves often 2-lobed, dehiscence usually septicidal at apex. Seeds numerous, red-brown, elongate, bilaterally compressed, ca. 1 mm.

About 35 species: cosmopolitan; two species in China.

1 Leaves ovate-lanceolate to broadly lanceolate, base rounded, truncate, or semiclasping; plants typically sparsely to densely pubescent; epicalyx segments much longer than sepals.   1 L. salicaria
+ Leaves narrowly lanceolate to linear-lanceolate, base cuneate; plants glabrous; epicalyx segments shorter than to equaling sepals.   2 L. virgatum

Lower Taxa


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