Ie 
Ie PAc 
LABIATAE 
Ovary 4-lobed, not deeply divided. 
2. Corolla regular, with 5 subequal lobes. (Also, 
flowers solitary at ends of terminal pedicels; 
stamens long-exerted; stem glandular-pubescent).... Trichostema 
2. Corolla irregular, the upper lip apparently 
WANE TMG. 5 <a aie sfevonshich sllefoVee elloteheliekeltelofe ele efouchojeieXoteiisiele se sc ee -LeUCKumM 
Ovary deeply 4-divided. (Also, corolla irregular, 
with upper lip present or, if regular, 4-lobed). 
3. Stamens included in the corolla tube, not 
directly visible. Expected (Marrubium). 
3. Stamens exerted from the corolla tube, directly 
visible. 
4. Upper lip of corolla helmet-shaped or 
concave. (Also, stamens always 4, ascending 
under the corolla lip, exceeding it only 
in Agastache). 
5. Calyx with a helmet-like projection 
on the upper side, closed in fruit. 
(Also, flowers blue to purple, usually 
in leafy-bracted racemes or panicles 
but axillaryginyone species)... ..0.20.0.....9s5cutellaria 
5. Calyx without a helmet-like projection on 
the upper side, open in fruit except in 
Prunella. 
6. Stem prostrate to ascending; leaves 
cordate to reniform at base. (Also, 
flowers lilac to blue-violet). 
7. Flowers distinctly pediceled, 
usually 3 per axil; upper stamens 
longer than the lower; corollas 
DHWEHVAlOL- CEL Kis geks is (ole katetehags okchs¥eteks/ epeye.s! seis se GLeChoma 
7. Flowers sessile, in dense terminal and 
axillary verticils; upper stamens shorter 
than the lower; corollas pink- or 
MEd —VA OME thyercheielevelelisiersieeleieusielsnoreseraie stoferereee ac mlttm 
6. Stem erect; leaves acute, rounded, or 
shallowly cordate at base. 
