Inula helianthus-aquatica C.Y.Wu ex Ling

Species

Angiosperms > Asterales > Asteraceae > Inula

Characteristics

Herbs, perennial. Rhizome long, usually with scalelike leaves and stolons. Stems 30-80 cm tall, pubescent and glandular. Leaves ovate-lanceolate or lanceolate, rarely ovate, 4-10 × 1.4-4 cm, abaxially yellow glandular, pubescent on abaxial veins, adaxially glabrous, margin densely toothed, apex acute or acuminate; bases of lower leaves usually gradually narrower to petioles; upper leaves sessile, base rounded or cuneate, or auriculate, semiamplexicaul; lateral veins 7 or 8 pairs, abaxially prominent. Capitula solitary on top of stems and branches, 2.5-4.5 cm in diam. Involucre hemispheric, 7-9 mm × 1-1.5 cm; phyllaries in 4 or 5 series, subequal, outer ones linear-lanceolate, leaflike adaxially, pubescent, inner linear-lanceolate, abaxially glabrous, margin membranous and ciliate. Ray florets yellow; lamina linear, ca. 15 mm. Disk florets yellow; corolla ca. 3 mm, with lanceolate lobes. Achenes cylindric, 10-striped, glabrous. Pappus white, of 10 or 11 bristles, ca. 2 mm. Fl. Jun-Oct, fr. Sep-Oct.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.8
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

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

Usage

Uses medicinal
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 14 - 42
Germination temperacture (C°) 12 - 18
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Inula helianthus-aquatica world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:50870445-1
WFO ID wfo-0000030287
COL ID -
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Inula helianthusaquatilis f. helianthusaquatilis Inula helianthusaquatilis subsp. helianthusaquatilis Inula helianthus-aquatica