Senecio elegans L.

Redpurple ragwort (en)

Species

Angiosperms > Asterales > Asteraceae > Senecio

Characteristics

Erect or ascending, annual herb, 10-60 cm tall. Stems glabrous or sparsely to densely hairy, usually becoming glabrous or sparsely hairy below, much-branched above and below. Basal and lower cauline lvs sparsely to moderately hairy especially when young, usually becoming almost glabrous above, petiolate; petiole < lamina, amplexicaul and often toothed or auriculate at base; lamina lyrate-pinnatifid to 1-2-pinnatisect, ovate, oblong, or obovate, obtuse and often mucronate at apex, 4-10-(20) × 1-3-(6) cm; segments obovate irregularly dentate; venation pinnate. Upper cauline lvs becoming smaller, shortly petiolate or apetiolate and often amplexicaul, and with narrower segments. Capitula 1-many, in loose corymbs. Supplementary bracts 11-16-(24), ovate-triangular to oblong, 2-5 mm long. Involucral bracts 13-14, oblong, glabrous, 5-9 mm long. Ray florets 12-17-(numerous); ligules usually purple, or purplish pink, sometimes pale or rarely white, 7-17 mm long. Disc yellow. Achenes terete or slightly flattened, with hairs between ribs, 2.3-3 mm long; pappus 5-8 mm long.
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Erect or sprawling annual, to 1.0 m high, nearly glabrous. Leaves to 20 cm long, with l:w ratio c. 2–4, subpinnatisect with 2–5 major segments per side; segments typically broadest distally and irregularly lobed; base slightly to moderately auriculate, slightly clasping. Capitula few to numerous per stem; calycular bracteoles 12–16, 3–5 mm long, c. 1.5–2 mm wide; involucre 7–8 mm long, c. 5–7 mm diam.; bracts 12–16, glabrous. Florets numerous; ligulate florets usually 12–17; ligule 7–15 mm long, 4-veined, rich magenta, occasionally pink or white. Achenes narrowly obloid, 2.5–3.2 mm long, brown or olive, with papillose hairs forming lines. Pappus caducous, 5–7 mm long. Source: Thompson (2015: 303). See also Belcher (1994: 392).
Annual herb, glandular-hairy. Stems erect or decumbent, up to 1 m high, much branched. Leaves ± fleshy, sessile, auriculate basally, oblong in outline, up to 80 mm long, pinnatifid to bipinnatipartite, margins revolute. Inflorescence laxly corymbose, several headed. Capitula radiate, disc yellow, rays pale mauve to purple, rarely absent(?); involucre broadly campanulate; bracts 12-15, 8-9 mm long, black-tipped, calyculus bracts many, ciliate, black-tipped. Flowering time mainly Sept.-Dec. Cypselae cylindrical, 3.0-3.5 mm long, ribbed, hairy.
Densely glandular-hairy annual to 1 m. Leaves fleshy, incised to pinnatisect, margins revolute. Flower heads radiate, numerous in dense corymbs, yellow with purple rays, involucre conspicuously calycled.
Stem diffuse, thick and rigid, roughly pubescent; leaves more frequently lyrate, with a large terminal lobe; inv. scales piloso-scabrous.
A herb.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.6 - 0.8
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

Grows in coastal sites on sand dunes and among rocks, in shrubland. On Lord Howe Island, naturalised along many subtropical and warm temperate shores as a sandbinder; also colonising sandy pockets in rock outcrops, and there usually depauperate, often with only a single capitulum (Belcher 1994: 392).
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It is a Mediterranean plant. It can grow in arid places.
Light 7-9
Soil humidity 3-7
Soil texture 4-5
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-10

Usage

The leaves are cooked and eaten as a green vegetable.
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Grown as a garden ornamental.
Uses environmental use food medicinal ornamental
Edible leaves
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°) -7
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Senecio elegans leaf picture by Pierre LEON (cc-by-sa)
Senecio elegans leaf picture by Maarten Vanhove (cc-by-sa)
Senecio elegans leaf picture by Maarten Vanhove (cc-by-sa)

Flower

Senecio elegans flower picture by Tristan Hamon (cc-by-sa)
Senecio elegans flower picture by brois (cc-by-sa)
Senecio elegans flower picture by Soazig Fleurs (cc-by-sa)

Distribution

Senecio elegans world distribution map, present in Australia, Spain, United Kingdom of Great Britain and Northern Ireland, New Zealand, Portugal, United States of America, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:244966-1
WFO ID wfo-0000074874
COL ID 4WKMV
BDTFX ID 168771
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Senecio elegans Jacobaea elegans Senecio pseudoelegans Senecio elegans var. elegans Senecio elegans var. diffusus Senecio elegans var. erectus Senecio elegans