Senecio yungningensis Hand.-mazz.

Species

Angiosperms > Asterales > Asteraceae > Senecio

Characteristics

Herbs, annual, dwarf. Stems 5-12 cm tall, much branched from base; branches spreading, ascending, glabrous. Leaves sessile; blade oblanceolate, 2-3.5 × 0.5-1 cm, glabrous, base scarcely auriculate, margin irregularly coarsely dentate or pinnatifid with 4-6 shortly triangular-oblong to linear-oblong ob-scurely denticulate lateral lobes, apex obtuse; upper leaves smaller. Capitula minutely radiate, solitary, axillary, subsessile. Involucres narrowly ovoid, 5-6 × 2-3 mm, contracted toward apex, minutely calyculate; bracts of calyculus 2 or 3, linear or linear-subulate, apically obtuse; phyllaries 8-14, oblong-linear, ca. 0.5 mm wide, connate except at apex, herbaceous, apically triangular, rather obtuse, puberulent. Ray florets ca. 7; corolla tube ca. 1.5 mm; lamina yellow, oblong, minute, ca. 0.5 mm, 3-veined, apically 2-or 3-lobulate. Disk florets 13-15; corolla yellow, ca. 2 mm, with ca. 0.7 mm tube and narrowly funnelform limb; lobes ovate, ca. 0.3 mm, apically obtuse. Anthers ca. 0.5 mm, basally distinctly auriculate; appendages ovate; antheropodia short, basally dilated. Style branches ca. 0.3 mm. Achenes cylindric, 3-4 mm, glabrous. Pappus white, ca. 1.5 mm, bristles few, unequal. Fl. May-Jun.
Life form annual
Growth form herb
Growth support -
Foliage retention -
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.12
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

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

Usage

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

Cultivation

Mode -
Germination duration (days) 10 - 21
Germination temperacture (C°) 18 - 23
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Senecio yungningensis world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:248321-1
WFO ID wfo-0000046740
COL ID 4WNTF
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Senecio yungningensis