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TEUCRIUM STOCKSIANUM/ Germander
Scientific Name: Teucrium stocksianum
Local Name: Ja’adah
Arabic Name: Ja’adah, Mekhzani, Toum, Gadha
Common Name: Germander
Perennial, caespitose, strongly suffruticose, aromatic herb. Stems simple or branched, 10-30 cm, leafy, white or greyish white, ± terete, with a dense eglandular indumentum of adpressed and retrorse or spreading short hairs. Leaves greyish-white, narrow elliptic, oblong or obovate, sessile or subsessile, 12- 20 x 4-10 mm, cuneate at base, obtuse to acute at apex, in upper part 3-5 crenate-dentate or subentire, tomentose on both surfaces, denser abaxially and with sessile oil globules. Flowers sessile, congested into terminal, or lateral, oblong or ovoid heads, subtended by leaf-like oblong to linear bracts as long as or longer than calyces. Calyx 5-7.5 mm, ± obliquely campanulate, with a spreading or adpressed eglandular indumentum and usually gland-dotted, scarcely bilabiate; tube with some villous hairs internally; teeth of upper lip equal, triangular, those of lower lip triangular-lanceolate somewhat longer than upper. Corolla 8-12 mm, yellowish-white with darker pink or lilac markings. Nutlets c. 1.8 x 1.2 mm, rugulose-reticulate.
Genus: Teucrium L.
Species: Teucrium stocksianum Boiss.
Subspecies: Teucrium stocksianum subsp. stocksianum Teucrium stocksianum var. glandulosum Freitag
Habitat and Distribution:
North Africa, Arabia, and Mediterranean zone. In the UAE the plant is found in rocky habitats: wadis and hillsides and compact fine-‐textured soils with stones, pebbles at all elevations.
Aerial parts and flowering heads
Traditional and Medicinal Use:
The plant is considered to be astringent, stimulant, appetizer, hypoglycemic and infusion of aerial parts is used for stomachache, intestinal problems, feminine sterility, steam bath for colds, fever and malaria. In UAE in the past mainly used for kidney problems, renal colic, and diabetes. Important for the production of the essential oil.
It has an extended superficial root systems to profit from dew. In the coastal areas and on the sand sheets dewfall is a more regular source of moisture for than rainfall. It is a feature of a large number of nights each month and in the summer it is the only source of surface moisture over much of the desert.