OF THE WASATCH REGION 



3. PRUNELLA. (Brunella.) Self-heal; All-heal. 



Perennials, with smooth and unbranched or sometimes 

 branched stems. Leaves petioled. Calyx tubular-bell-shaped, 

 sometimes 10-ribbed; upper lip broadly 3-toothed, the teeth 

 short; lower lip with 2 longer teeth; closed in fruit. Upper 

 lip of corolla upright, arched and entire; lower lip spreading, 

 reflexed, 3-cleft and fringed. Stamens didynamous, each 2- 

 toothed at apex of filament, with only 1 tooth anther-bearing; 

 the lower pair the longer. Ovary 4-parted. 



1. P. vulgarls L. Carpenter-weed. Leaves oblong-ovate, 

 entire or toothed; smooth or with a few scattered hairs. Calyx 

 purplish or green; shorter than corolla. Corolla purplish, bluish 

 or sometimes white. In grassy places near streams. May- 

 October. 



4. JLAMIUM. Henbit; Dead Nettle. 



Leaves crenate, dentate or incised; usually cordate. In- 

 florescence terminal or axillary; clustered. Flowers rather 

 small; white, red or purplish. Calyx 5-toothed. Corolla with 

 its tube longer than calyx, its limb strongly 2-lipped. Stamens 

 4, didynamous, the anterior pair the longer; anthers 2 -celled. 

 Ovary 4-parted; style 2-cleft, the branches equal. Nutlets 

 smooth or tuberculate. 



Upper leaves sessile or clasping 1. li. ample.xicaule 



All the leaves petioled 2. L,. imrpureiim 



1. L. amplexicaule L. Annual or biennial,. sparingly pubes- 

 cent. Stems slender, weak, branched, 6-18 inches long. Leaves 

 round or nearly so; coarsely crenate, cordate at base. Calyx 

 pubescent, its teeth acute. Corolla purplish or red, the middle 

 lobe of the lower lip notched and spotted with dark purple; 

 the upper lip pubescent. In waste places. Introduced. Feb- 

 ruary-October. 



2. It. purpureum L. Calyx-teeth narrowly lanceolate, acumi- 

 nate, longer than the tube. Lateral lobes of lower lip of corolla 

 reduced to 1 or 2 short teeth. Otherwise much as in No. 1. 

 Introduced. April-October. 



5. MARRUBIUM. Horehound. 



Branching, woolly perennials. Leaves petioled, crenate- 

 toothed, wrinkled. Flowers small, in compact axillary spikes. 

 Calyx tubular, 5-10-nerved. 



1. M. vul&are L. Bitter-tasting plant. Stems erect, 1-3 ft. 

 high, several from the same root. Leaves oval to round, with 

 obtuse apex; upper surface whitish and lower surface white- 

 woolly. Corolla whitish. Calyx-teeth 10, becoming hooks in 

 fruit. In waste places. Introduced. May-September. 



