Cyanthilium cinereum ASTERACEAE

Sample information

Sample ID286-342-1
Common nameasia ironweed witches broom


Pollen / Sporepollen
Morphologic typefenestrate
Surface patternechinate
Equatorial sizemin 19.5, mean 22.9, max 25.8
Polar sizemin 18.6, mean 22.5, max 25.5
Equatorial shapecircular
Polar shapecircular
Grain arrangementdicot
Dispersal formmonad
Morphology notesSpine (echini) average 2.71um (2.29 - 2.92).

Ecology and Geography

Plant typeangiosperm
Floristic region(s)Australia (tropical)
Vegetation communitiesherbland
Ecology notesFosberg, F. R., M.-H. Sachet and R. L. Oliver. 1979. A geographical checklist of the Micronesian dicotyledonae. Micronesica 15:292. Smith, A. C. 1991. Flora Vitiensis nova: A new flora of Fiji. Lawai, Kauai, Hawaii. National Tropical Botanical Garden. 5:263-264. Whistler, W. A. 1988. Checklist of the weed flora of western Polynesia. Technical Paper No. 194, South Pacific Commission, Noumea, New Caledonia.
Habitat notesNear permanent water; on a range of substrates, sand, loam, clay, laterite. Occasional to common in waste places (Whistler, 1988). Presumably indigenous in southeastern Asia and Malesia, now adventive in most southern Pacific archipelagoes and elsewhere in the tropics, including Australia, New Zealand, Africa, and America (Smith, 1991). Fosberg et al. (1979) lists as native to Micronesia.


CollectorAnne & Mark Myerscough
InstitutionCharles Darwin University
ANU access code17021
Collection methodfloral reference
Herbarium sample?False
Collection siteCasuarina Coastal Reserve, Darwin, Northern Territory
Collection countryAustralia
Collection date2004-06-17
Collection notesKimberley Region, Western Australian Pollen Flora
Equatorial view
Polar view
Surface pattern
Wall view
Unique feature