Genus Tamarix L.
Род 507. РАКИТОВИЦА — TAMARIX L. ¹
L., Sp. Pl. ed. 1 (1753) 270; Gen. Pl. ed. 5.(1754) 131Fam: Tamaricaceae S. F. Gray
Genus: Tamarix L.
English Name: Tamarisk, Salt cedarDescription:
Evergreen or deciduous low trees or shrubs up to 5 m tall. Young twigs green or reddish, old dark red or brown. Leaves scaly, entire, sessile, close to the branches, successive, without stipules. Inflorescences wheatear-shaped. Flowers bisexual with bracts, very rarely unisexual, very small, 1.5 to 5 mm long. Calyx and corolla 4 - 5 (7) -parts, the shares ovate or back ovoid, pink, purple or white; stamens 4 - 15, in some species attached to a 4 - 5-part disc, free or fused with their petioles; ovary upper, 1-nested, the styles 3 - 4, short, globular. The fruit is a pyramidal, cracking box in three parts. Seeds many, small, back ovoid, with a little awn on top and a kite of hairs. Insect pollinators; propagated by seeds and vegetative shoots.
Table for determination of the species
1 Inflorescences located on young green twigs; flower petiole longer than the calyx ………….......... 1. - T. ramosissima Ledeb.
1* Inflorescences located on the old brown twigs (young dark red); flower petiole shorter than calyx ........................................... ..................................................................................................................................................... 2. - T. tetrandra Pall, ex MV
¹ Developed by E. PalamarevFrom: „Флора на Н Р България”, том VII, Изд. на Б А Н, София, (1979) * * * * *
The genus Tamarix (tamarisk, salt cedar) is composed of about 50–60 species of flowering plants in the family Tamaricaceae, native to drier areas of Eurasia and Africa.[2] The generic name originated in Latin and may refer to the Tamaris River in Hispania Tarraconensis (Spain).[3]Description
They are evergreen or deciduous shrubs or trees growing to 1–18 m (3.3–59.1 ft) in height and forming dense thickets. The largest, Tamarix aphylla, is an evergreen tree that can grow to 18 m (59 ft) tall. They usually grow on saline soils, tolerating up to 15,000 ppm soluble salt, and can also tolerate alkaline conditions.[citation needed]
Tamarisks are characterized by slender branches and grey-green foliage. The bark of young branches is smooth and reddish brown. As the plants age, the bark becomes bluish-purple, ridged and furrowed.[citation needed]
The leaves are scale-like, almost like that of junipers,[4] 1–2 mm (1/20" to 1/10") long, and overlap each other along the stem. They are often encrusted with salt secretions.[citation needed]
The pink to white flowers appear in dense masses on 5–10 cm (2" to 4") long spikes at branch tips from March to September, though some species (e.g., T. aphylla) tend to flower during the winter.[citation needed]
From Wikipedia, the free encyclopedia
* * * * * Distribution in Bulgaria: (Conspectus of the Bulgarian Vascular Flora) = conspectus&gs_l= Zlc.
Distribution:
References: „Флора на Н Р България”, том VII, Изд. на Б А Н, София, (1979), Wikipedia, the free encyclopedia
SPECIES:
Tamarix tetrandra Pall. ex M.B. - Tamarisk, Salt cedar
|
© K.Nanev |
© Copy right: K. Nanev© 2012. All rights reserved