Phacelia tanacetifolia - Wikipedia, the free encyclopedia

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tanacetifolia is a species belonging to the Boraginaceae family native to the southwestern United States and northern Mexico.

> View of the plant in its habitat


It is an annual herbaceous erect with a maximum height of 100 cm. The whole plant is covered with glands and rigid hairs. The leaves are deeply divided into intricate leaflets with lobes of jagged margins, which gives them a lacy appearance. The fleshy inflorescence is formed by a curved top of bell-shaped flowers in blue tones or lavender. Each flower is 1 cm long, with outstanding golden stamens.

It is a plant capable of adapting to a wide variety of soil types. Its adaptation is best in low-lying areas with good drainage, clayey, loamy-loamy, sandy-loamy, loamy-loamy and aerated in texture with pH ranging from 5 to 8.5.

end of August, to 1 or 2 centimeters deep. The usual recommended proportion is 20 grams of seeds per 10 square meters of plot, with a minimum area under cultivation for one hectare to be harvested.

Its planting is most successful in those areas which receive between 350 and 900 mm of annual precipitation.

Biology and phenology

The flower has a petiole that can measure up to 2 cm, add. The lower petioles have a longer length.

The chalice possesses lobes of size 5 - 7.5 x 0.4 - 0.7 mm, subequal, linear, obtuse, rough and with an erect, patent and white garment < / p>

The corolla measures between 6 - 9 x 6 - 9 mm, more or less infundibuliform. It is longer than the chalice, bluish, with lobes 3.5 - 5 x 3 - 3.5 mm, ovate and obtuse.

The androceus stamens have a size of 11 - 17 mm, subigual, external, filamentous , filiform, smooth and white staminals. The measurement of their anthers are 0.7 - 1 x 0.4 - 0.6 mm, smooth and bluish. It also presents interstate scales, with a triangular shape and fimbriated ends.

Gynoeus has an ovary of 0.7 - 1.1 x 0.4 - 0.5 mm, obovate. The styles usually have between 1.7 - 2.1 cm, of filiform form, cleaved until near its base and pubescente. The stigmas are less than 0.1 mm in size and have a flat shape. The capsule measures 3.5 - 4.2 x 2.2 - 3 mm, has an ovoid shape, is shorter than the calyx, has smooth corrugated smooth or transverse walls and is pubescent at the apex.

The growth stage for the button, A stage of development of average flowering, Finally the stage of full bloom.

Interest and exploitation

Forages that differ in morphological characteristics and growth stage at the time of harvest were evaluated to determine the effects on variables that were assumed to be related to the characteristics of the food. However, many factors determine the effect of feed value of forage crops and their mineral composition on feed digestibility and consumption. Macrofactors that influence the feed value of fodder crops during growth and development include:

Climate factors, Growth stage, Time of cut, Leaf / stem ratio, Disease damage, Insect damage, (Tekeli and Ates 2006).

In the subtropical region under rainfed conditions, P. tanacetifolia can be planted to obtain maximum yield of green forage, dry matter and mineral contents. This plant was a balanced food for the animals throughout the growing season.

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