jueves, 12 de febrero de 2015

Botany - Botanica: Vicia - sp. Pannonica y Pseudocracca - 23 images - Data - Links to more Botany - Botanica

Vicia pannonica

 Vicia pannonica is a species of vetch known by the common name Hungarian vetch.[1] It is native to southern, central Europe and western Asia, and it is sometimes cultivated as an agricultural crop for use as hay and fodder.[2] It may escape cultivation and grow as a casual roadside weed. This is an annual herb producing a hairy, climbing stem supported by the tendrils on its leaf-tips. The leaves are each made up of 10 to 20 oval or oblong leaflets measuring up to 2.5 centimeters in length. The inflorescence bears two to four pealike flowers each up to 2 centimeters long. The flower corolla is yellow or purple-marked and the back of the banner (the large top petal) is coated in soft hairs. The fruit is a hairy legume pod 2 to 3 centimeters long.


Vicia pannonica subsp striata

Vicia pseudocracca 
Vicia pseudocracca Bertol  

Vicia villosa, known as the hairy vetch, fodder vetch or winter vetch, is a plant native to Europe and western Asia. It is a legume, grown as a forage crop.

Hairy vetch is very similar to tufted vetch, the most noticeable difference being that tufted vetch has a smooth stem.

Several subspecies are recognized:

    Vicia villosa ssp. ambigua (Guss.) Kerguelen (= ssp. elegantissima, ssp. pseudocracca)
    Vicia villosa ssp. eriocarpa (Hausskn.) P.W.Ball
    Vicia villosa ssp. microphylla (d'Urv.) P.W.Ball
    Vicia villosa ssp. varia (Host) Corb. (= ssp. dasycarpa)
    Vicia villosa ssp. villosa


Hairy vetch is widely used by organic growers in the United States as a winter cover crop and in no-till farming, as it is both winter hardy and can fix as much as 200 lb/acre of atmospheric nitrogen.[1] Disadvantages of hairy vetch in production agriculture are related to the crop having a portion of hard seed and its tendency to shatter seed early in the season - leading to it remaining in the field as a weed later in the season. This can be a particular problem in wheat production.
Companion plant

Organic gardeners often plant hairy vetch (a nitrogen-fixing legume) as a companion plant to tomatoes, as an alternative to rotating crops in small growing areas. When it is time to plant tomatoes in the spring, the hairy vetch is cut to the ground and the tomato seedlings are planted in holes dug through the matted residue and stubble. The vetch vegetation provides both nitrogen and an instant mulch that preserves moisture and keeps weeds from sprouting.[2]


Botany - Botanica: Vicia - sp. Pannonica y Pseudocracca - 23 images - Data - Links to more Botany - Botanica

You have an alphabetical guide in the foot of the page in the blog: solitary dog sculptor
In the blog: Solitary Dog Sculptor I, the alphabetical guide is on the right side of the page

Usted tiene una guía alfabética al pie de la página en el blog: solitary dog sculptor
En el blog: Solitary Dog Sculptor I, la guia alfabética está en el costado derecho de la página

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