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Helianthus annuus

Taxonomy
The status of the taxon:
checked
Department: Magnoliophyta
Class Magnoliopsida
Subclass: Asteridae
Superorder: Asteranae
Order: Asterales
Family: Compositae
Genus: Helianthus
The specific epithet: annuus
Author: L.
Names, synonyms, alternative name of this plant in different countries
Name Status
common sunflower English name
Helianthus annuus L. main title
Sunflower English name

Ecology:

Relationship to the world.:
Light
Source: Common. (See Sources tab)
Moisture requirements.:
Mesophyte
Source: Common. (See Sources tab)
The soil requirements.:
Бедная
Source: Common. (See Sources tab)
During the growing season.:
Лето
Source: Common. (See Sources tab)
Resistance to fires.:
No
Source: Common. (See Sources tab)
Type of plant in the context of consolidation of the soil.:
One crown
Source: Common. (See Sources tab)
Allelopathy at least one other species.:
No
Source: Common. (See Sources tab)
Nitrogen fixation.:
Нет
Source: Common. (See Sources tab)
Adapted to coarse soils:
Yes
Source: Common. (See Sources tab)
Adaptability to soils with a medium texture.:
Yes
Source: Common. (See Sources tab)
Adaptability to soils with a fine texture.:
Yes
Source: Common. (See Sources tab)
Resistance to absence of oxygen in the soil.:
No
Source: Common. (See Sources tab)
The ability to recover after a fire.:
No
Source: Common. (See Sources tab)
The minimum number of warm days per year required for the normal development of the plant.:
80
Source: Common. (See Sources tab)
pH (Minimum).:
5
Source: Common. (See Sources tab)
pH (Maximum).:
7
Source: Common. (See Sources tab)
The maximum rainfall in cm at home plants.:
30
Source: Common. (See Sources tab)
The minimum rainfall in cm at home plants.:
152
Source: Common. (See Sources tab)
The minimum temperature recorded in the homeland of the plant, Celsius.:
11
Source: Common. (See Sources tab)

Appearance:

Growth form:
Herbaceous plant
Source: Common. (See Sources tab)
The shape of the crown:
Прямостоячая
Source: Common. (See Sources tab)
The density of the crown:
Разреженная
Source: Common. (See Sources tab)
Maximum height, m:
2
Source: Common. (See Sources tab)
Life:
Однолетнее
Source: Common. (See Sources tab)
Flower color:
Жёлтый
Source: Common. (See Sources tab)
The beauty of the autumn coloration of the foliage:
Yes
Source: Common. (See Sources tab)
Decorative flower:
Yes
Source: Common. (See Sources tab)
Foliage colour:
Зелёный
Source: Common. (See Sources tab)
The density of the crown in the winter:
Moderately dense
Source: Common. (See Sources tab)
The texture of the foliage:
Rough
Source: Common. (See Sources tab)
The color of the fruit:
Синий
Source: Common. (See Sources tab)
Decorative fruit:
Yes
Source: Common. (See Sources tab)
The depth of the root system, not less, cm:
20
Source: Common. (See Sources tab)
Flowering period:
Лето
Source: Common. (See Sources tab)

Use:

Nutritional value.:
Nonpoisonous
Source: Common. (See Sources tab)
Feed value.:
Yes
Source: Common. (See Sources tab)
The suitability of the fruit (seeds, berries, etc.) for commercial use.:
No
Source: Common. (See Sources tab)
Use as lumber.:
No
Source: Common. (See Sources tab)
The possibility of obtaining tar.:
No
Source: Common. (See Sources tab)
Use as Telegraph poles.:
No
Source: Common. (See Sources tab)
Use as pulpwood.:
No
Source: Common. (See Sources tab)
Use as veneer or plywood.:
No
Source: Common. (See Sources tab)

Interesting facts:

Review:
grow cool
Source: Common. (See Sources tab)
The bloating belly in animal husbandry.:
No
Source: Common. (See Sources tab)
The presence of shoots from dormant buds after removal of the biomass.:
No
Source: Common. (See Sources tab)
The rate of growth.:
The rapid growth
Source: Common. (See Sources tab)

Care:

Attitude to pruning:
No
Source: Common. (See Sources tab)
The distance between plants in cm.:
45,72
Source: Common. (See Sources tab)
Planting density, min, m2.:
1
Source: Common. (See Sources tab)
Planting density, max, m2.:
2
Source: Common. (See Sources tab)

Reproduction:

Methods of reproduction:
Семенами;
Source: Common. (See Sources tab)
The type of planting seeds:
1
Source: Common. (See Sources tab)
Method of sowing:
<2 недели при 20°С, быстрое прорастание
Source: Common. (See Sources tab)
The depth of sowing seeds:
Sprinkle a thin layer of
Source: Common. (See Sources tab)
Preva shoots:
No
Source: Common. (See Sources tab)
Fruitage:
Лето
Source: Common. (See Sources tab)
The end of the fruiting:
Осень
Source: Common. (See Sources tab)
Long hold on the seeds on the plant after ripening:
Yes
Source: Common. (See Sources tab)
Makes whether transplant with open root system:
No
Source: Common. (See Sources tab)
Vigour:
Low
Source: Common. (See Sources tab)
The mass of 1000 seeds, g:
9
Source: Common. (See Sources tab)
Stratification.:
Нет
Source: Common. (See Sources tab)

Botany:

The type of inflorescence:
Корзинка
Source: Common. (See Sources tab)
Type of fruit:
Семянка
Source: Common. (See Sources tab)
The type of fruit according to the method of development of the fruitlets:
Cookery
Source: Common. (See Sources tab)
Stamens:
5
Source: Common. (See Sources tab)
Type of ovary:
Нижняя
Source: Common. (See Sources tab)
Pistils:
2
Source: Common. (See Sources tab)
Sheet:
Простой
Source: Common. (See Sources tab)
Stipules:
No
Source: Common. (See Sources tab)
The list of sources:
1. http://identify.plantnet-project.org/species/useful/Helianthus annuus L.
2. http://plants.usda.gov/java/introduced?queryParam=comname&sort=comname
3. http://tomclothier.hort.net/page48.html
4. Ботаника. Учебник, Родионова А.С., Скупченко В.Б., Малышева О.Н., Джикович Ю.В.
5. Черепанов, 1995