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Galeopsis tetrahit

Taxonomy
The status of the taxon:
checked
Department: Magnoliophyta
Class Magnoliopsida
Subclass: Lamiidae
Superorder: Lamianae
Order: Lamiales
Family: Lamiaceae
Genus: Galeopsis
The specific epithet: tetrahit
Author: L.
Names, synonyms, alternative name of this plant in different countries
Name Status
brittlestem hempnettle English name
Common hemp-nettle English name
Galeopsis tetrahit L. main title
Пикульник обыкновенный Russian name

Ecology:

Habitat.:
рудеральные, сегетальные факультативные , растения мест отдыха, растения нарушенных местообитаний, растения пастбищ и сенокосных угодий, сорняки пропашных культур, газонные, огородные и садовые
Source: Common. (See Sources tab)

Data on environmental scales:

Scale Landolt

Attitude to moisture:
on soils from medium dry to moist
Source: Common. (See Sources tab)
The acidity of the soil:
in slightly acidic soil, never very sour, but sometimes in neutral and slightly alkaline (pH 4.5 to 7.5)
Source: Common. (See Sources tab)
The richness of the soil mineral nutrition, especially nitrogen compounds:
the rich (especially with nitrogen) soils never occur on the poor
Source: Common. (See Sources tab)
The content of humus:
on soils with medium humus content
Source: Common. (See Sources tab)
Mechanical composition and soil structure:
on fine sand, fairly well-aerated soils (particle size of 0.002-0.05 mm)
Source: Common. (See Sources tab)
Illumination:
penumbral plant (at a relative illumination of more than 10%)
Source: Common. (See Sources tab)
Temperature:
3
Source: Common. (See Sources tab)
Continenatlity:
3
Source: Common. (See Sources tab)

The Scale Of Tsyganov

Termokhimicheskie scale, from:
subarctic (10-20 kcal/cm*cm*year)
Source: Common. (See Sources tab)
Termokhimicheskie scale, to:
nemoral/Submediterranean
Source: Common. (See Sources tab)
Continentality of climate, from:
ocean
Source: Common. (See Sources tab)
Continentality of climate, to:
the subcontinent
Source: Common. (See Sources tab)
Apolitically aridity-Guidetti, from:
semi-arid (P-E = 0-400 mm/year)
Source: Common. (See Sources tab)
Apolitically aridity-Guidetti to:
humid (P-E = 400-800 mm/year)
Source: Common. (See Sources tab)
Creolisation, from:
moderate winters ( mean t of the coldest month -8 to -16)
Source: Common. (See Sources tab)
Karolinamisia to:
mild winters/warm winters
Source: Common. (See Sources tab)
Salt regime of soils, from:
poor soils/poor soils
Source: Common. (See Sources tab)
Salt regime of soils, to:
rich soil
Source: Common. (See Sources tab)
The wealth of soil nitrogen from:
poor nitrogen soils
Source: Common. (See Sources tab)
The wealth of the soil nitrogen, to:
nitrogen-rich soils/excessively nitrogen-rich soil
Source: Common. (See Sources tab)
The acidity of the soil, from:
very acidic soils (pH = 3,5)
Source: Common. (See Sources tab)
The acidity of the soil, to:
slightly alkaline soils (pH=7,2-8,0)
Source: Common. (See Sources tab)
Light-shading from:
open spaces
Source: Common. (See Sources tab)
Light-shading, to:
light woods/shaded forests
Source: Common. (See Sources tab)

Appearance:

Growth form:
Herbaceous plant
Source: Common. (See Sources tab)
Life:
Однолетнее
Source: Common. (See Sources tab)

Use:

Horticultural classes:
Сорняк
Source: Common. (See Sources tab)

Reproduction:

Methods of reproduction:
Семенами весной (яровое)
Source: Common. (See Sources tab)

Botany:

Monoecious/dioecious:
Monoecious
Source: Common. (See Sources tab)
Type of fruit:
Орешек
Source: Common. (See Sources tab)
The type of fruit according to the method of development of the fruitlets:
Apomorphy
Source: Common. (See Sources tab)
Type of flower:
Zygomorphic
Source: Common. (See Sources tab)
Type of ovary:
Верхняя
Source: Common. (See Sources tab)
Pistils:
2
Source: Common. (See Sources tab)
Stipules:
No
Source: Common. (See Sources tab)
The presence of pubescence:
Yes
Source: Common. (See Sources tab)
Stem in context:
Четырёхгранный
Source: Common. (See Sources tab)
The list of sources:
1. http://humangarden.ru/myinfo.htm
2. http://plants.usda.gov/java/introduced?queryParam=comname&sort=comname
3. Ботаника. Учебник, Родионова А.С., Скупченко В.Б., Малышева О.Н., Джикович Ю.В.
4. Черепанов, 1995