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Coastal Sub-Tropical

g g JUL AUG SEP OCT NOV DEC JAN FEB MAR APR MAY JUN
RESCUE GRASS Bromus unioloides gr wh gr gr gr gr gr gr gr gr wh wh
BERMUDA GRASS Cynodon dactylon gr wh gr gr gr gr gr gr gr gr gr wh
SEDGES, NUT GRASS Cyperus spp. wh wh wh wh gr gr gr gr gr gr gr gr
COCKSFOOT Dactylis glomerata wh wh wh wh gr gr gr gr wh wh wh wh
YORKSHIRE FOG Holcus lanatus wh wh wh gr gr gr gr wh gr wh wh wh
PERENNIAL RYE GRASS Lolium perenne wh wh wh gr gr gr gr gr wh wh wh wh
BAHIA GRASS Paspalum spp. wh wh wh wh wh gr gr gr gr gr wh wh
KIKUYU GRASS, etc. Pennisetum spp. gr gr gr gr gr gr gr gr gr gr gr gr
COMMON REED Phragmites australis wh wh wh wh wh wh gr gr gr gr gr wh
MEADOW GRASS Poa annua gr gr gr gr gr gr gr gr gr gr wh wh
JOHNSON GRASS Sorghum halepense wh wh wh wh wh gr gr gr gr wh wh wh
PIGWEEDS Amaranthus spp. wh wh wh wh wh yel yel yel yel yel yel yel
WORMWOOD Artemisia afra yel wh wh wh wh wh yel yel yel yel yel yel
WHITE GOOSEFOOT Chenopodium album yel yel yel yel yel yel yel yel yel yel yel yel
HAIRY WILD LETTUCE Hypochoeris radicata yel yel yel yel yel yel yel yel yel yel yel yel
BUCKHORN PLANTAIN Plantago lanceolata wh wh wh yel yel yel yel yel yel yel yel wh
SHEEP SORRELL Rumex acetosella yel yel yel yel yel yel yel yel wh wh wh wh
TALL KHAKIWEED Tagetes minuta yel wh wh yel yel yel wh wh wh wh yel yel
WATTLE, PORT JACKSON Acacia spp. vgr vgr vgr vgr vgr vgr vgr vgr vgr vgr vgr vgr
EUCALYPTUS, GUM TREE Eucalyptus spp. wh vgr vgr vgr vgr wh wh wh wh wh wh wh
OLIVE Olea europea wh wh vgr vgr vgr vgr vgr vgr vgr wh wh wh
PLANE Platanus acerifolia wh wh vgr vgr wh wh wh wh wh wh wh wh
MESQUITE Prosopis juliflora wh wh vgr vgr vgr wh wh wh wh wh wh wh
OAK Quercus robur vgr vgr wh wh wh wh wh wh wh wh wh wh
WILLOW Salix spp. wh vgr vgr wh wh wh wh wh wh wh wh wh

 

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Data on pollen occurrence and seasonality obtained from the Pretoria National Herbarium Computerised Information System

Data represents a subjective evaluation of the actual events in the year 1993 at location in Mid-Rand region. There will be significant variation from year to year and location to location.