中国马鞭草属的新记录——长苞马鞭草

A Newly Recorded Species of Verbena Linn. in China

长苞马鞭草(VerbenabracteataCav.exLag.&J.D.Rodriguez)原产北美。2001年春天我们首次在中国大连的马兰水库发现该种植物,它丛生或与其他植物混生,形态与原产地的种一样;因为其苞片通常大、显著且比花萼明显的长,易和原产中国的唯一马鞭草属的V.officinalisL.区分开。

Verbena bracteata Cav. ex Lag. & J. D. Rodriguez is a well-known native in North America. In spring 2001, it was found for the first time growing thickly by itself or among other species of plants in the wasteland near Malan reservoir of Dalian, northeastern China. The morphology appears to be similar to that of the original species. Since its floral bractlets are often large, conspicuous and much longer than the calyx, V. bracteata Cav. ex Lag. & J. D. Rodriguez can be easily distinguished from V. officinalis L., only one species native in China.