152 Flora of the Palouse Region 



the lower somewhat spreading, 3-eleft: stamens 4, exserted from 

 the corolla. 



L. Urticifolius Benth. Glabrous or nearly so, the erect usually simple 

 stems .5-1.5 m. tall, tufted: leaves ovate, cordate, obtuse or acute, coarsely 

 dentate, green on both sides, 3-6 cm. long, short- petioled: spikes terminal, 

 stout, densely puberulent, 6-10 cm. long or sometimes with smaller ones from 

 the upper axils: calyx tubular-campanulate, the teeth lanceolate, acuminate, 

 purple-tinged: corolla violet-purple. Whole plant pleasantly scented. Low 

 ground, not rare. 



253. NEPETA. 



Perennial herbs: calyx tubnlar, often incurved, obliquely 5- 

 toothed: corolla 2-lipped, dilated in the throat; the upper lip erect, 

 rather concave, notched or 2-cleft; the lower spreading, 3-cleft, 

 the middle lobe largest, notched or entire: stamens 4, ascending 

 under the upper corolla-lip, the upper pair longer. 



N. cataria L. Perennial, erect, 30-90 cm. high, finely canescent through- 

 out: leaves ovate or oblong, acute, dentate, somewhat cordate at base, 2-6 

 cm. long, petioled, densely canescent: spike stout, dense, 2-10 cm. long: 

 calyx-teeth subulate, the longest one-half as long as the tube: corolla white 

 or purplish, with dark dots, 10-12 mm. long, its tube exceeding the calyx. 

 Sparingly introduced. 



254. PRUNELLA. 



Low perennials: flowers in terminal or axillary heads or spikes: 

 calyx tubular-bell-shaped, about 10-nerved, 2-lipped, not gibbous 

 on the upper side, closed in fruit; upper lip broad and flat, truncate, 

 with 3 short teeth, the lower 2-cleft: corolla 2-lipped, slightly con- 

 tracted at the throat and dilated at the lower side just beneath it; 

 upper lip arched, erect, entire; the lower reflexed-spreading, 3- 

 cleft: stamens 4, ascending under the upper lip, the lower pair 

 longer. 



P. vulgaris L. Glabrous or nearly so, erect or ascending, 15-40 cm. 

 high: leaves ovate-oblong or oblong-lanceolate, acute or obtuse, rounded or 

 cuneate at base, entire or crenate, 2-6 cm. long; petioles slender, about half 

 as long as the blades: spikes terminal, very dense, 2-5 cm. long; bracts very 

 broad, ovate or orbicular, cuspidate-acuminate, ciliate: calyx-teeth somewhat 

 ciliate: corolla violet, 8-12 mm. long, hardly twice as long as the purplish 

 calyx. Moist ground, not common. 



255. LAMIUM. 



Decumbent herbs: calyx tubular-bell-shaped, about 5-nerved, 

 with 5 nearly equal awl-pointed teeth: corolla 2-lipped, dilated at 

 the throat, the tube longer than the calyx; the upper lip arched, 

 narrowed at the base; the middle lobe of the spreading lower lip 



