Isodon umbrosus,
a
perennial found in beech forests, with downward hairs on stems and a
height of 20-80cm. Blades with 0.5-2cm long petioles are of opposite
phyllotaxis,5-15cm long,1.5-3.5cm wide, long oblong-like lanceolate,
with serrations on margins and sparse hairs on surfaces. Branch tips
bear spike-like inflorescences and set blue-purple, 8-9mm long
labiate flowers; upper lips bend backward and cleft themselves in
four, and lower lip navicular. Bloom time. September-October. |