Hibiscus krichauffianus
- Illustration and information on the Velvet-leaved Hibiscus, and a map of Australia showing its range.
- http://www.australian-aridlands-botanic-garden.org/general/plants/p_spec/vlh.htm

Hibiscus brackenridgei
- Several striking photographs of this species growing in its natural habitat in Hawaii.
- http://jupiternielsenflameworking.com/hawaiianflora/ma_o_hau_hele.html

Hibiscus
- Photographs of several colorful species of Hibiscus growing in their natural habitat in Hawaii.
- http://jupiternielsenflameworking.com/hawaiianflora/kokio_ula.html

A Close-up View of the Exotic Hibiscus and the Lowly Hollyhock
- Photographic study by Brian Johnston of these plants, Hibiscus rosa-sinensis and Althaea rosea, with many fine images both macroscopic and microscopic.
- http://www.microscopy-uk.org.uk/mag/artfeb07/bj-Hibiscus.html

Hibiscus trionum
- Photos of entire plant, stem, leaves, calyx, flower, and fruit. Includes facts about physical features, habitat, and origin.
- http://www.missouriplants.com/Others/Hibiscus_trionum_page.html

Hibiscus Gallery
- Images of flowers for about 25 species.
- http://www.malvaceae.info/Genera/Hibiscus/gallery.html

Hibiscus cannabinus
- Detailed information about kenaf and its cultivation.
- http://www.hort.purdue.edu/newcrop/nexus/Hibiscus_cannabinus_nex.html

Hibiscus syriacus
- image
- http://www.dipbot.unict.it/orto/0067-1.html

Hibiscus schizopetalus
- image
- http://www.botany.hawaii.edu/faculty/carr/images/hib_sch.jpg

Hibiscus arnottianus
- image
- http://www.botany.hawaii.edu/faculty/carr/images/hib_arn.jpg

Hibiscus rosa-sinensis
- image
- http://www.dipbot.unict.it/orto/0066-1.html

Hibiscus esculentus
- image
- http://www.botany.hawaii.edu/faculty/carr/images/hib_esc_mid.jpg

Hibiscus tiliaceus
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- http://florawww.eeb.uconn.edu/acc_num/198500639.html