1158 LAMIACEAE 
1. amplexicaule L. Stem and branches decumbent, sparingly bier 
Pedes leat- El dard to orbicular-reniform, 1~3.5 wide, 
crenate-lobed alyx coming 5-6 mm. 
long: corolla c 13- iu . long; tube 
Minden the ~ Tip with mucronate lateral 
lobes and s or gir middle 
lobe: nis aon —(HENBIT.) 
—Roadsides, fields ae are m 
and waste- places, various province d 
La., Ark., Calif., B. C., ani N. B. ' Nat of 
Eu.— (W. I. )—Wint. s 
purpureum L. Stem 
le . lo t See 
with short hairs: d purple or e dera 
mostly is than 1.5 em. long, the upper lip less than 5 mm. long: nutlets about 2 
m. long — (Dap Err )—Cult. grounds, qoum inis shaded places, various 
medi N. C. to Mo., and Newf. Nat. of Eu —Spr- um. 
3. L. maculatum L. Stem and ere more or less ereeping, rather coarsely 
butsparingly retrorse-pubescent: leaf-blades ovate to triangular-ovate: calyx over 
10 mm. long at eant esi: with long hairs: corolla purple or white, 
Bon? over 2 em. long, the upper lip about 1 em. long: nutlets about 3 mm. 
long.—W aste- ro roadsides, and thickets, various bao ees N. C. and Tenn. 
to Me. Nat. of Eu.—Spr.— 
16. LEONURUS L. Annual, biennial, or perennial, erect herbs. Leaf- 
blades broad, toothed or parted. Flowers in dense axillary cymes. Calyx some- 
what irregular: lobes firm, slender. Corolla 2-lipped: upper lip nearly erect: 
lower lip 3-lobed, the middle lobe much larger than the lateral ones. Stamens 4: 
filaments pubescent.—About 10 species, Eurasian.—MOTHERWORTS. 
Blades of the lower leaves lobed and incised : corolla a = long as the calyx. 
Upper corolla-lip hirsute: lower calyx-lobes spr g: 
blades of the lower leaves coarsely lobed. 1. L. Cardiaca. 
blades of the lower leaves finely PP: 2. L. sibiricus. 
. Marrubiastrum. 
1. L. Cardiaca L. eund 3-12 dm. tall: leaves various; blades of the 
lower wi suboriicula in outline, coarsely palmately lobed, those ud the upper 
ly 3-lob bed; 
SON 
leaves to cuneate, mostly 
yx long; lobes short-subulate, 
half as Jong as the tube: corolla pale-purple 
9-10 m ng; nutlets t ng. 
—Rondsides, waste-places, Fi k Hart va- 
rious mae , to , Utah 
and S. Can Nat. of T bre 
L. sibiricus L. Biennial, 9-12 
ta ll: leaves various ; blades of the lower cones 
suborbicul outline, deeply an re 
a 
finely lobed than in L. Cardiaca, Tm of 
the upper leaves, or nin lobes, finely pin- | 
natisect; calyx long; lobes tri- 
angular- subulate, CREE. poen 1 as long as 
the tube: corolla purplish, 10—12 mm. long: 
