Argyranthemum adauctum ssp canariense       0

The stems are up to 60cm, erect, usually branched throughout the plant, pubescent to scabridulous. The leaves are 1.5-9 x 0.6-4cm, obovate, bi-pinnatifid to bi-pinnatisect, sessile, pubescent to tomentose. There are 4-20 primary lobes, 2-25 x 2-12mm, opposite or almost so, acute. There are 2-6 secondary lobes, 1-9 x 3mm, opposite to alternate, tomentose to pubescent, acute.

The inflorescence is corymbose with 5-20 capitula. The bracts are leaf-like to linear-oblong. The peduncles are 1-8cm. The involucre is 4-12mm in diameter. The bracts are in 3 series, triangular to obovate-oblong in outline. The outer bracts are fleshy with a narrow scarious border. The inner bracts are scarious, usually with an expanded apex. The ray florets are 10-15 x 2-3.5mm, white. The apex is 1-3-fid. The disc florets are 3-4mm, the corolla lobes yellow, the tubes white.

The ray cypselas are 2.5-4.2 x 1.3-6.5mm, turbinate, trigonous to semi-terete in transverse section, the dorsal surface arcuate, the ventral surface slightly concave or flat, wingless, coalesced together in groups of 2-5. The pappus is absent or present as a narrow marginal ridge with a convex-conical floret abscission scar at the apex. The disc cypselas are 1.6-2 x 0.5-1mm, obconical, terete, wingless, usually sterile, light brown to chestnut in color.

References
- A revision of the Macaronesian genus Argyranthemum Webb ex Schultz bip. (Compositae-Anthemideae), British Museum (Natural History). Bulletin of the British Museum (Natural History) Botany 1976 Vol. 5(4) pag. 227-234. Address

- A revision of the Macaronesian genus Argyranthemum Webb ex Schultz bip. (Compositae-Anthemideae), British Museum (Natural History). Bulletin of the British Museum (Natural History) Botany 1976 Vol. 5(4) pag. 147-240. Address
- Evolution and endemism in Argyranthemum Webb ex Schultz Bip.(Compositae: Anthemideae)[Canary, Madeira and Salvage Islands], Humphries, CJ. Botanica Macaronesica (Spain) 1976. Address
- Molecular evidence for a Mediterranean origin of the Macaronesian endemic genus Argyranthemum (Asteraceae), Francisco-Ortega, Javier and Santos-Guerra, Arnoldo and Hines, Ayelet and Jansen, Robert K. American Journal of Botany 1997 Vol. 84(11) pag. 1595-1613.
- Insular woody daisies (Argyranthemum, Asteraceae) are more resistant to drought-induced hydraulic failure than their herbaceous relatives, Dóia, Larissa C and Podadera, Diego S and del Arco, Marcelino and Chauvin, Thibaud and Smets, Erik and Delzon, Sylvain and Lens, Frederic. Functional Ecology 2018 Vol. 32(6) pag. 1467-1478. Address
- Intergeneric hybridization of marguerite (Argyranthemum frutescens) with annual chrysanthemum (Glebionis carinatum) and crown daisy (G. coronaria) using ovule culture, Ohtsuka, Hisao and Inaba, Zentaro. Plant biotechnology 2008 Vol. 25(6) pag. 535-539. Address

Biological type: plant
Frost resistance: 23ºF
Leaf color: dark green
Flower color: white
Reproduction mode: hermaphrodite plant whoes flowers produce both male and female gametes
Indexed Susceptible to the Chrysanthemum stunt viroid The Regional Directorate for Food, Agriculture and Forestry.

Specifications for the Mediterranean basin
Adult size (h x w): 1,6ft x 1,9ft
Sun exposure: full sun (Sun hours: >6h
Foliage: evergreen
Growth: fast
Flowering time from March until May

Specific information for our garden
Planting substrate: 30%Compost+30%Coco+40%Sand
Plant watering: 3x a week pH 6.5
Logical sequence of containers for: Perennials; forestry plate 8cm, 1L container, 2L forestry pot, 6L container, 55L container
Propagation is done by cuttings

Ecology in its country of origin
Rainfall: 500-800mm

SPRING Soak in acetone with 0.1% Gibberellic acid GA3, just covering the seeds, for 30 min then wash thoroughly in running tap water. Sow the seeds at 3mm depth in the Well Drained Seed Sowing Mix between 59-68°F. During germination keep the substrate moist and in daylight. The seeds germinate in 4-6 weeks.