5. Marrubium L, Horehound, 
Ours perennial herbs or undershrubs with numerous stems ascending 
from a woody crown; leaves crenate, very rugose on both surfaces. Flowers 
in dense subglobose axillary whorls, Calyx tubular, 10-12 toothed, the 
teeth subspinose and hooked at the apex, Corolla white, 2-lipped, the 
uvper lip erect, 2-lobed, the lower Spreading, 3-lobed, Stamens 4, 
Nutlets smooth, 
1. M. vulgare Le Herb 60-90 cm, tall, with ascending white-woolly branches; 
leaves 1,5-3 cm, long, broadly ovate or subrotund, narrowed to petioles 
1-2 cm, long; Fethew—biteciaty whorls subtended by subulate bracts equal 
to the calyces; calyces 5=6 mn, long, woolly; corolla 7-8 mm, long, the 
lobes subeosual, 
A cosmopolitan weed of waste places and along roadways. Priest er 
Epling. The skeleton plants often overwinter, their bony calyces dis- 
articulating tardily from the flower Spikes, Calycecs dispersed by cling- 
ing to sheep and other animals, 
rae ERT fa VE 
