Pacific Pests, Pathogens and Weeds - Online edition Cinderella weed (490)

Summary Worldwide distribution. In , Fiji, French Polynesia, Guam, New Caledonia, Papua New Guinea, Samoa, Solomon Islands, and Tuvalu. Moderately invasive weed forming dense stands in gardens, parks, roadsides, wastelands, and low-growing vegetable crops. Combining rapid germination, short life cycle, massive seed production, and tolerance to different soil types and full sun. Alternate host of several fungal pathogens. Erect stem, up to 80cm, woody, 4-sided stems, hairy; leaves opposite, oval, pointed-tips short stalks, serrated margins; flowerheads yellow, arising from leaf axils, or end of stems, disc (inner) and ray (outer) florets, surrounded by leafy bracts. Seeds with bristles. Photo 1. Cinderella weed, nodiflora, Spread: seed on the wind, water, debris, clothing. Contaminant of crop seeds. before flowering. Biosecurity: check for seed on clothing and vehicles. Biocontrol: none. Cultural control: hand-weed. Clean machinery/vehicles. Chemical control: in Australia, MCPA + terbutryn. Common Name Cinderella weed. It is also known as synedrella. Scientific Name Synedrella nodiflora; previously, it was known as Verbesina nodiflora. It is a member of the Photo 2 Single , cinderella weed, . Synedrella nodiflora, showing the flowers.

AUTHO R Grahame Jackson Information from CABI (2019) Synedrella nodiflora (synedrella). Invasive Species Compendium. (https://w w w .cabi.org/isc/datasheet/52325); and from Le Bourgeois T, Pascal M (2020) Synedrella nodiflora (L.) Gaertn. W IKTRO P. (https://portal.w iktrop.org/species/show /320). Photo 1 Dinesh Valke Ngaroiarui (in Maori) Asteraceae (aster, daisy, or sunflow er family) Synedrella nodiflora. family). Photo 2 Tau'olunga Synedrella nodiflora (pakaka in Tonga), a w eed, almost lookalike but different from Eleutheranthera ruderalis.

Produced w ith support from the Australian Centre for International Agricultural Research under project HO RT/2016/185: Responding to emerging pest and disease threats to horticulture in the Pacific islands, implemented by the University of Queensland and the Secretariat of the Pacific Community.

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Photo 3. Flowers of the nodes and tips of shoots in the upper third of the cinderella weed, Synedrella nodiflora.

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