324 



LAMIACEAE. 



1. Leonurus sibiricus L. SIBE- 

 RIAN MOTHERWORT OR LlON 'S-TAIL. 

 (Fig. 347.) Biennial, puberulent or 

 glabrate; stem 2-6 high. Leaves 

 loug-petioled, 3-parted into ovate or 

 lanceolate, acute or acuminate, cleft 

 and incised segments, the lobes lan- 

 ceolate or linear, acute ; the upper- 

 most linear or lanceolate ; clusters 

 dense, usually all axillary; calyx 

 campanulate, 3" long, glabrous or 

 puberulent ; corolla purple or red, 

 puberulent without, 4"-6" long. 



Frequent in waste grounds and 

 along roads. Naturalized. Native of 

 eastern Asia. Naturalized in the West 

 Indies, and in Delaware and Pennsyl- 

 vania. Flowers from spring to autumn. 



Leonurus Cardiaca L., MOTHER- 

 WORT, also European, differs in hav- 

 ing the leaves palmately 3-5-cleft. 

 It is listed by Lefroy and recorded 

 by Reade as found in fields. 



5. LEONOTIS R. Br. 



Annual or perennial caulescent herbs or shrubby plants. Leaves opposite, 

 broad, toothed, petioled, the flowers short-pedicelled in dense whorls. Calyx- 

 tube 10-nerved, oblique at the mouth, its lobes 8-10, unequal, bristle-tipped. 

 Corolla yellow, orange or scarlet, 2-lipped, the tube dilated above, curved; 

 upper lip erect, rather long; lower lip with 3 lobes, the middle lobe scarcely 

 longer than the lateral. Stamens 4; filaments all anther-bearing; anthers 

 2-celled; sacs diverging. Nutlets 3-angled, smooth. [Greek, lion's-ear.J 

 About 12 African species. Type species: Leonotis Leonitis (L.) R. Br. 



1. Leonotis nepetaefolia R. Br. 



TALL LEONOTIS. LION'S-EAR. (Fig. 

 348.) Annual, softly pubescent. Stems 

 l-6 tall, rather stout, simple or 

 branched ; leaves ovate or ovate-del- 

 toid, li'-5' long, coarsely crenate, 

 cuneate or subcordate at the base; 

 clusters dense, about 2' in diameter; 

 pedicels about 1" long; calyx puberu- 

 lent, becoming about 1' long, its tube 

 reticulated above the middle, its lobes 

 8, awn-tipped ; corolla scarlet or 

 orange-yellow, about 1' long, villous- 

 hirsute, its tube curved, the upper lip 

 as long as the tube, the lower lip 

 much shorter than the upper, with 

 3 narrow lobes ; nutlets 1" long, 

 angled. [Phlomis nepetaefolia L.] 



Frequent in waste and cultivated 

 grounds. Naturalized. Native of the 

 Old World tropics. Naturalized in the 

 southern United States, the West Indies 

 and tropical continental America. 



