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Dimorphotheca fruticosa (L.) Less.

Ostéosperme ligneux (fr)

Species

Angiosperms > Asterales > Asteraceae > Dimorphotheca

Characteristics

Herba perennis vel suffrutex; caulis adscendens vel saepius decumbens-prostratus parum ramosus 3-6 d m longus 2-5 mm crassus e basi + lignescens radices adventitias sparsas emittens; internodia usque 2 cm longa, vulgo multo breviora. Folia alterna ± carnosa primo glanduloso-puberula deinde glabrescentia obovata-spathulata vel pauca oblanceolata apice rotundata vel obtusa saepe mucronata sessilia vel basin versus in petiolum semiamplexicaulem cuneatim angustata petiolo incluso 3-6(-8) cm longa 1-2.5 cm lata margine leviter callosa aspera integerrima vel dentibus minutis remotis instructa; nervus medius et saepe etiam nervi laterales subtus prominentes. Capitula in apicibus caulis et ramorum solitaria pedunculata; pedunculi nudi longitudine valde variabiles 3-10 cm longi erecti sursum saltern glanduloso-puberuli apice paullum incrassati. Involucrum hemisphaericum 9-12 mm altum; squamae c. 15 ad anthesin subbiseriatae in maturitate achaeniorum fere uniseriatae aequilongae lanceolatae vel oblongo-lanceolatae acuto-acuminatae per medium dorsum virides glandulosoqniberulae margine albido-scariosae ciliatae. Flores radii involucri squamas nuraero aequantes; ligulae supra albae subtus violaceae-lilacinae-roseo-lilacinae involucrum 2-plo superantes. Flores disci 40-50; corollae purpureo-lilacinae, lobi interiorum plerumque dorso sub apice minute gibbosi. Achaenia matura glabra 6-7 mm longa c. 3 mm diam. anguste triangulari-ohovoidea, angulis apice in tuberculum prominentibus, exteriorihus normaliter acutis, interiore saepe obtuso; latera sublaevia vel foveolis sparsis vel basin versus sulcis instructa.
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Sprawling, slightly succulent herb, stems 3-4 mm in diam., older parts woody and often leafless, decumbent or ascending, rooting where they touch ground, young shoots herbaceous, leafy. Leaves ± 100 x 25 mm, often rosetted, obovate, spathulate or oblanceolate, apex obtuse, mucronate, narrowed to petiole-like clasping base, margins entire or remotely callose-denticulate, slightly fleshy, rough-hairy. Capitula ± 40 mm in diam. Ray florets white above, bluish mauve beneath. Disc florets mauve. Flowering time all year. Cypselae 6-7 mm long, narrowly obovoid, 3-angled.
Shortly hairy, sprawling to prostrate, softly woody shrublet. Leaves obovate, petiolate, fleshy, minutely toothed. Flower heads radiate, large, solitary on naked peduncles, purple with white or mauve rays. Ray achenes smooth, trigonous, ± 6 mm long, disc florets sterile.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.1 - 0.5
Mature height (meter) 0.2 - 0.7
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 6-9
Soil humidity 1-5
Soil texture 5-6
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 10-11

Usage

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

Cultivation

Can be grown by cuttings.
Mode cuttings
Germination duration (days) 10 - 15
Germination temperacture (C°) 15 - 21
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Dimorphotheca fruticosa unspecified picture

Distribution

Dimorphotheca fruticosa world distribution map, present in Australia, New Zealand, United States of America, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:235878-1
WFO ID wfo-0000061578
COL ID 367TT
BDTFX ID 22513
INPN ID 95014
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Dimorphotheca fruticosa Blaxium decumbens Osteospermum riparium Osteospermum fruticosum Calendula diffusa Calendula fruticosa
WorldFloraDB 2024