Senecio astephanus Greene

San gabriel ragwort (en)

Species

Angiosperms > Asterales > Asteraceae > Senecio

Characteristics

Perennials, 40–100 cm (caudices unknown). Herbage unevenly floccose-lanate or tomentose, glabrescent. Stems single. Leaves progressively reduced distally; petiolate; blades elliptic-ovate to lanceolate, 10–20(–30?) × 3–7+ cm, bases tapered, margins dentate to denticulate (teeth cartilaginous; mid leaves similar, sessile, smaller; distal leaves bractlike). Heads 10–20+ in loose or congested, cymiform arrays. Calyculi of 5–8+ lance-linear to filiform bractlets (lengths 1 / 3 – 7 / 8 phyllaries). Phyllaries ± 21, 7–8 mm, tips greenish. Ray florets 0. Cypselae glabrous. 2n = 40.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.4 - 1.0
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 astephanus world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:232644-2
WFO ID wfo-0000079560
COL ID 4WJPP
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Senecio astephanus