Ixeridium laevigatum (Blume) C.Shih

Species

Angiosperms > Asterales > Asteraceae > Ixeridium

Characteristics

Herbs 10-90 cm tall, perennial, with short oblique ?rhizome and fibrous roots. Stems solitary or few, erect, branched from above middle or less frequently from further below, distantly leafy. Basal leaves crowded, usually present at anthesis, elliptic, narrowly elliptic, or linear-elliptic, 5-32 × 0.3-3.5 cm, undivided or more rarely pinnatipartite, basally attenuate and sometimes with an unwinged petiole-like portion, margin denticulate, sinuate-dentate, or more rarely entire, apex rounded to acute and often mucronate; lateral lobes (if present) 2-5 pairs, semiorbicular, triangular-ovate, or lanceolate. Stem leaves broadly elliptic, oblanceolate, lanceolate, or linear-lanceolate, base attenuate, semiamplexicaul, undivided, margin entire to sinuate-dentate, apex acute. Synflorescence corymbiform, with some to many capitula. Capitula with 8-11 florets; peduncle capillaceous. Involucre cylindric, (5-)6-7(-8) mm. Phyllaries abaxially glabrous; outer phyllaries ovate-lanceolate, longest to 1.5 mm, apex acute; inner phyllaries 8, apex acute. Florets yellow. Anther tube and style greenish to blackish upon drying. Achene brown, subfusiform, 4-5 mm, apex attenuate into a slender 1-2 mm beak. Pappus straw-colored, 3-4 mm. Fl. and fr. Feb-Oct. 2n = 14*.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.9
Root system fibrous-root rhizome
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Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Usage

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

Cultivation

Mode -
Germination duration (days) -
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Optimum temperature (C°) -
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Distribution

Ixeridium laevigatum world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:226392-1
WFO ID wfo-0000075926
COL ID 6NSD7
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Ixeridium laevigatum Lactuca luzonica Ixeris laevigata Crepis laevigata