House dust mite

Bermuda grass (Cynodon dactylon)

Couch (Bermuda Cynodon) lawngrass

Johnson grass (Sorghum halapense)

Kentucky grass (Poa pratensis)

Parthenium (Parthenium hysterophorus Bitterweed, Feverfew, False ragweed, Whitetop)

Timothy grass (Phleum pratense)

Bahia grass (Paspalum notatum)

Line Drawing of perennial rye (Lolium perenne).

Aspergillus

Paper wasp (Polistes)

European Honey Bee

Jack Jumper Ant (Myrmecia pilosula)

Photo: http://www.fda.gov/fdac/features/496_alle.html

Photo: Larry Allain @ National Wetlands

Research Center, USGS

Photo: David HS

Photo: David HS

Photo: Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database / USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln, NE.

Photo: Larry Allain @ National Wetlands

Research Center, USGS

Photo: James R. Johnson @ USDA-NRCS PLANTS Database / USDA NRCS. 1992. Western wetland flora: Field office guide to plant species. West Region, Sacramento, CA.

Photo: David HS

Photo: USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 1: 281.

Photo:

Photo: David HS

Photo: John Severns (public domain) http://en.wikipedia.org/wiki/Image:European_honey_bee_extracts_nectar.jpg

Photo: http://en.wikipedia.org/wiki/Image:Jack_Jumper_Ant.jpg (GNU/Public domain)