Senecio royleanus Dc.

Species

Angiosperms > Asterales > Asteraceae > Senecio

Characteristics

Herbs, perennial, rhizomatous. Stem solitary, erect, ca. 60 cm tall, ± flexuous in upper part, not branched below synflorescence, fulvous puberulent when young. Basal and lower stem leaves withered and shed by anthesis; median stem leaf petioles 1.5-3 cm, sparsely puberulent, without or with small, entire or toothed auricles; blade adaxially green, ovate-oblong, 10-15 × 6-8 cm, papery, abaxially sparsely puberulent on rather prominent veins, adaxially glabrous or sparsely puberulent, pinnatipartite into a triangular-lanceolate, attenuate terminal lobe and 10-12 ovate-lanceolate or oblong-lanceolate, acuminate-attenuate, mucronulate-serrate lateral lobes. Upper leaves smaller, not auriculate. Uppermost leaves lanceolate or linear-lanceolate, basally cuneate, shortly petiolate or subsessile, margin unequally serrate, apically acuminate or long acuminate. Capitula radiate, numerous, arranged in dense compound terminal and upper axillary corymbs; peduncles 3-5(-10) mm, slender, sparsely to densely puberulent, with 1-3 linear-subulate bracteoles. Involucres narrowly campanulate, 4-5 × 1.5-2.5 mm, calyculate; bracts of calyculus 5 or 6, linear, unequal, 1-3 mm; phyllaries 8, linear, ca. 1 mm wide, herbaceous, sparsely puberulent, margin narrowly scarious, apically obtuse, purplish and puberulent. Ray florets 4 or 5; corolla tube ca. 3.5 mm; lamina yellow, oblong, ca. 4 × 1 mm, 3-or 4-veined, 3-denticulate. Disk florets 8 or 9; corolla yellow, ca. 6 mm, with ca. 3 mm tube and funnelform limb; lobes 5, ovate-triangular, ca. 1 mm, apically acute, papillose. Anthers ca. 1.5 mm, basally obtuse-auriculate, appendages ovate-lanceolate; antheropodia moderately long, basally slightly dilated. Achenes cylindric, ca. 2.5 mm, glabrous. Pappus white, ca. 4.5 mm. Fl. Aug-Sep.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.6
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) 7-12

Usage

Uses medicinal
Edible -
Therapeutic use Epistaxis (unspecified), Fumitory (unspecified)
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 royleanus world distribution map, present in Bhutan, China, India, Myanmar, Nepal, and Pakistan

Identifiers

LSID urn:lsid:ipni.org:names:247359-1
WFO ID wfo-0000007688
COL ID 4WMWV
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Senecio tanacetoides Cacalia graciliflora Senecio graciliflorus var. hookeri Senecio royleanus