Information central

The following sources have aided greatly in the production of this webpage, a well deserved thank you also goes out to the capturing and inspiring images of the photographers as well.

1988. Helitanthus annuus. pp 329, 613. The Marshall Cavendish Illustrated          Enclycopedia of Plants and Earth Sciences. Equinox (Oxford) Ltd. Freeport, New York, USA.

2006. Helianthus annuus. p 149. Flora of North America, Magnoliphyta: Asteridae (in part): Asteraceae part 3. Oxford University Press, New York, New York, USA.

Balance of Nature 1998. <http://www.cas.psu.edu/docs/webcourse/wetland/wet1/balnat.html>. Accessed 24 April 2008.

 Composite Flower Structure. <http://www.naturenorth.com/fall/asters/struct.html>. Accessed 24 April 2008.

 Cronquist, A. 1981. An Integrated System of Classification of Flowering Plants. Columbia University Press, New York, New York, USA.

 Cullen, J. 1997. The Identification of Flowering Plant Families. Cambridge University Press, Cambridge, United Kingdom.

 Growth and Mycorrhizal Infection of Sunflowers 2008. <http://goliath.ecnext.com/coms2/gi_0199-5990703/Growth-and-mycorrhizal-infection-of.html>. Accessed 24 April 2008.

 Heiser, C. 1976. The Sunflower. University of Oklahoma Press, Norman, Oklahoma, USA.

 Helianthus annuus 2004. <http://www.floridata.com/ref/H/heli_ann.cfm>. Accessed 31 March 2008.

 Helianthus annuus “Honey Bear” 2008. <http://zipcodezoo.com/Plants/H/Helianthus_annus_Honey_Bear.asp>. Accessed 31 March 2008. 

 Helianthus annus: Kemper Center for Home Gardening 2006. <http://www.mobot.org/gardeninghelp/plantfinder/Plant.asp?code=A583#lbl_culture>. Accessed 10 April 2008.

 Helianthus annuus: UW-Stevens Point Freckmann Herbarium 2008. <http://wisplants.uwsp.edu/scripts/detail.asp?SpCode=HELANN>. Accessed 9 April 2008.

 Hutchinson, L. 1964. The Genera of Flowering Plants. Oxford University Press, London, United Kingdom.

Niches: Those Confusing Botanical Names 1 June 2005. <http://sparkleberrysprings.com/v-web/b2/index.php?p=199>. Accessed 24 April 2008.

 Oplinger, E. June 1979. Sunflower Production in Wisconsin. University of Wisconsin-Madison, Madison, Wisconsin, USA.

 Photosynthesis 2007. <http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookPS.html>. Accessed 24 April 2008.

 PLANTS Profile for Helianthus annuus (common sunflower) 2008. <http://plants.usda.gov/java/profile?symbol=HEAN3>. Accessed 9 April 2008.

 Sunflower 2008. <http://www.gpnc.org/sunflower.htm>. Accessed 24 April 2008.

 Sunflower; Alternative Field Crops Manual 1990. <http://www.hort.purdue.edu/newcrop/AFCM/sunflower.html>. Accessed 10 April 2008.

 Sunflower: Love to Know Garden 2008. < http://garden.lovetoknow.com/wiki/Sunflower>.  Accessed 24 April 2008.

Vincent Van Gogh: Sunflowers: Vincent Van Gogh Gallery 2008. <http://www.vangoghgallery.com/painting/sunflowerindex.html>. Accessed 24 April 2008.