3. Lythrum Lineāre L. Linear-Leaved Loosestrife

Fig. 3006

Lythrum lineare L. Sp. Pl. 447. 1753.

Perennial slender, glabrous, rather pale green, much branched, 2°-4° high. Leaves narrowly linear, sessile, 6"-12" long, 1"-2" wide, nearly all opposite, acutish at the apex or the lowest obtuse, narrowed at the base; flowers solitary in the upper axils, light purple or nearly white, dimorphous, about 1 1/2" broad; stamens of the short-styled flowers exserted; no hypogynous ring; ovary short-stalked; fruiting calyx 1 1/2"-2" long.

Borders of salt marshes, New Jersey to Florida, west to Texas. Cuba. July-Sept.

Lythrum Vulnerāria Ait., of Mexico, admitted into our first edition as recorded as found at St. Louis, Mo., is not definitely known within our area.

4. Lythrum Salicāria L. Spiked Or Purple Loosestrif

Fig. 3007

Lythrum Salicaria L. Sp. Pl. 446. 1753.

Perennial, erect, 2°-3° high, glabrous or pubescent, sometimes tomentose above, at length much branched. Leaves opposite or sometimes verticillate in 3's, sessile, lanceolate, cordate or clasping at the base, 2'-3' long, 3"-5" wide; flowers purple, trimorphous, 6"-8" broad, in dense compound terminal interrupted bracted spikes; stamens 8-10, alternately longer and shorter, even the longer ones little exserted; ovary short-stalked; fruiting calyx about 3" long; calyx-lobes shorter than the narrow appendages.

In swamps and wet meadows, Cape Breton Island to Ontario, south to southern New York, Delaware and the District of Columbia. Naturalized from Europe. June-Aug Widely distributed in the Old World. Spiked willow-herb, long purples, soldiers. Purple-grass. Willow- or kill-weed. Sage-willow. Milk or purple willow-herb. Red sally. Rainbow-weed.

Lythrum virgātum L., differing by leaves narrowed at the base, is recorded as established in eastern Massachusetts.

4 Lythrum Salic Ria L Spiked Or Purple Loosestrif 1349