Helianthus x laetiflorus Pers.

Cheerful sunflower (en), Hélianthe vivace (fr), Hélianthe à fleurs plaisantes (fr), Soleil vivace (fr)

Species

Angiosperms > Asterales > Asteraceae > Helianthus

Characteristics

Erect perennial herb, with rhizomes and sometimes small, poorly developed tubers. Stems scabrid, not branched or much-branched above at flowering, up to

More

A herb.

Life form	perennial
Growth form	herb
Growth support	free-standing
Foliage retention	deciduous
Sexuality	hermaphrodite
Pollination	entomogamy
Spread	barochory
Mature width (meter)	1.0 - 1.5
Mature height (meter)	1.3 - 2.0
Root system	rhizome
Rooting depth (meter)	-
Root diameter (meter)	0.5
Flower color
Blooming months	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Fruit color	-
Fruiting months	-
Nitrogen fixer	-
Photosynthetic pathway	-

Environment

It is a temperate plant. It suits hardiness zones 5-9.

Light
Soil humidity
Soil texture
Soil acidity
Soil nutriment
Hardiness (USDA)

Usage

The tubers are cooked and eaten.

Uses	-
Edible	roots tubers
Therapeutic use	-
Human toxicity	-
Animal toxicity	-

Cultivation

Can be grown by divisions or seedlings.

Mode	divisions seedlings
Germination duration (days)	10 - 14
Germination temperacture (C°)	-
Germination luminosity	-
Germination treatment	-
Minimum temperature (C°)	-
Optimum temperature (C°)	-
Size	-
Vigor	-
Productivity	-

Images

Habit

Leaf

Flower

Distribution

Identifiers

LSID	urn:lsid:ipni.org:names:329250-2
WFO ID	wfo-0000033514
COL ID	6LHQY
BDTFX ID	31334
INPN ID	101056
Wikipedia (EN)	Link
Wikipedia (FR)	Link

Synonyms

Helianthus tricuspis Helianthus scaberrimus Helianthus x superbus Helianthus atrorubens Helianthus severus Helianthus superbus Helianthus x var. tricuspis Helianthus scaberrimus var. scaberrimus Helianthus x laetiflorus