630 



MENTHACEAE 



1. Lamium amplexicaule L. Common Henbit or Dead Nettle. Fig. 4386. 



Lamium amplexicaule L. Sp. PI. 579. 1753. 



Annual or biennial, sparsely pubescent; stems branched from the base and often from the 

 lower axils, ascending or decumbent, 1.5-4.5 cm. long. Leaves broadly ovate to nearly orbicular, 

 truncate or cordate at base, coarsely crenate, the basal slender-petioled, 7-10 mm. broad; the 

 upper sessile or clasping. 20-25 mm. wide ; flowers relatively few in axillary and terminal clus- 

 ters ; calyx pubescent, the teeth nearly as long as the tube, erect ; corolla purple or red, 12-16 mm. 

 longi tube very slender; lower lip with very small lateral lobes, its middle lobe spotted; upper 

 lip pubescent with reddish hairs. 



Frequent in cultivated grasses and waste places, naturalized from Europe; British Columbia to southern 

 California. Feb.-Oct. 



2. Lamium purpureum L. Red Henbit or Dead Nettle. Fig. 4387. 



Lamium purpureum L. Sp. PI. 579. 1753. 



Annual, sparsely pubescent ; stems branched from the base and sometimes from the axils, 

 decumbent, 15-45 cm. long. Leaves crenate or crenulate, the lower slender-petioled, orbicular 

 to broadly ovate, 8-12 mm. long, cordate at base, rounded at apex, the upper short-petioled, ovate 

 and usually acutish at apex, cordate at base, 15-25 mm. long; corolla purple-red, 10-16 mm. long, 

 the tube rather stout, lateral lobes of the linear lip reduced to short teeth, the middle one spotted, 

 upper lip densely reddish-pubescent. 



Waste places and cultivated ground, naturalized from Europe; Washington to central California. Not as 

 common as the preceding. March-Oct. 



3. Lamium maculatum L. Spotted Henbit or Dead Nettle. Fig. 4388. 



Lamium maculatum L. Sp. PI. ed. 2. 809. 1763. 



Perennial herb, sparsely pubescent; stems commonly branched, decumbent or ascending, 

 2-5 dm. long. Leaves crenate, all petioled, usually with a blotch along the midrib, broadly ovate, 

 acute or obtuse at apex, cordate or truncate at base, 2-5 cm. long, the basal smaller, rounded, and 

 slender-petioled; flowers mainly axillary; corolla purple-red, 20-25 mm. long, tube short, con- 

 tracted near the base with a transverse ring of hairs within, rather short-pubescent all over the 

 outer surface. 



An occasional escape from gardens, in the Willamette Valley, Oregon; also in the Atlantic States. Native 

 of Europe. April-Oct. 



Moluccella laevis L. Sp. PI. 587. 1753. Shell-flower. Annual, glabrous, the stems erect, simple or 

 branched, 4-8 dm. high. Leaves suborbicular, coarsely toothed with broad rounded teeth, petiole slender about 

 equaling the Wades; flowers several in the axils of the leaves, subtended by several slender spreading or reflexed 

 spines; calyx-lobes united into a broad funnelform membranous reticulate-veined structure simulating a morning- 

 glory, subtended by several spines; corolla included, white or pink, the upper lip arched and including the 

 stamens. An occasional escape from gardens in southern Oregon and central California. Native of western 

 Asia. 



13. STACHYS [Tourn.] L. Sp. PI. 580. 1753. 



Annual or perennial, commonly pubescent or hispid herbs, with mostly purplish ver- 

 ticillate flowers, forming dense or interrupted terminal spikes, or also in the upper axils. 

 Calyx usually companulate, 5-10-nerved, 5-toothed, the teetli nearly equal, erect or spread- 



4387 

 4387. Lamium purpureum 



4388 

 4388. Lamium maculatum 



4389 

 4389. Stachys arvensis 



