Senecio squarrosus A.Rich.

Species

Angiosperms > Asterales > Asteraceae > Senecio

Characteristics

Erect to sprawling herbs to 0.8 m high, usually distinctly leafier in lower 1/3 at anthesis. Taproot inconspicuous; secondary roots fleshy. Stems sparsely appressed-cottony or ± glabrous, transiently or rarely persistently slightly hispid. Leaves 7–13 cm long, with l:w ratio c. 8–15, undivided or lobate, with 1–3 triangular to oblong lobes per side; base with small auricles above mid-stem; margin entire or with scattered teeth; upper surface hispid, becoming sparse upwards; lower surface as for upper, or cobwebby, or glabrous except for midrib. Capitula several (to many) per stem; calycular bracteoles 6–10, 2–4 mm long; peduncle and calyculus slightly to moderately cobwebby at anthesis; involucre 6–11 mm long, 2.8–4 mm diam.; bracts (12–) 16–25, glabrous. Florets 50–70. Achenes narrowly obloid, 2–3 mm long, brown, with papillose hairs in broad bands; l:w ratio of hairs c. 3–4. Pappus 6–8 mm long.
Life form -
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.8
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
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Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Grows in sandy or clay soils, commonly in lower-lying areas in open forest and woodland.
Light -
Soil humidity -
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Hardiness (USDA) 8-11

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 -
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Optimum temperature (C°) -
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Productivity -

Distribution

Senecio squarrosus world distribution map, present in Australia

Identifiers

LSID urn:lsid:ipni.org:names:142699-3
WFO ID wfo-0000120192
COL ID 4WN96
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Senecio squarrosus Erechtites richardiana