|
Introduced weeds. There were 27 weed species (10% of the
flora) recorded for Jingaring Nature Reserve compared to
19 weed species (8% of the flora) for Yilliminning Rock
and 37 weed species (15% of the flora) for the Popanyinning
remnant survey. These weed ratios range from low to
moderate with some wheat-belt remnants containing
higher numbers of weed species (unpublished personal
observations). The number of weed species does not nec-
essarily correspond to the extent of weed invasion.
Jingaring Nature Reserve has serious weed infestation
throughout the creekline community. Here, grass weeds
such as Avena barbata, Briza maxima, Bromus diandrus, Ehrharta
longiflora, Hordeum geniculatum and Lolium rigidum domi-
nate the understorey. Broadleaf weeds such as Arctotheca
calendula, Brassica tournefortii and Hypochaeris glabra are also
locally common. The reserve boundary abutting farm-
Obbens, Davis & Sage: Vegetation of Jingaring Reserve
57
land also has dense weed invasion, but by far the larger
Dostları ilə paylaş: | 
