Portulacaceae
- Botanical characteristics of this family of shrubs and plants, with illustrations of several species.
- http://delta-intkey.com/angio/www/portulac.htm

Portulacaceae (Purslane Family)
- Information on this family and a photograph and description of Miner's Lettuce (Claytonia perfoliata).
- http://plants.montara.com/ListPages/FamPages/Portulaca.html

Claytonia virginica (Spring Beauty)
- Describes physical features, range, habitat, and faunal associations. Provides images of flowers and leaves.
- http://www.illinoiswildflowers.info/woodland/plants/spring_beauty.htm

The Portulacaceae
- Information on this family of 20 genera and about 500 species, with photographs of about 10 example species.
- http://www.botany.hawaii.edu/faculty/carr/portulac.htm