Portulacaceae

Plant sex: Flowers usually bisexual

Flowers: Actinomorphic. Stamens occur OPPOSITE the petals. Basal placentation. Sepals interpreted as bracts by some

Inflorescence: Flowers solitary or in cymes or racemes

Fruits: Loculicidal capsules, pyxis

Habit: Annual and perennial herbs, often succulent

Leaves: Alternate or opposite, simple, often fleshy, stipules present

Examples:
Claytonia virginica (spring beauty)

A huge population of spring beauties! Note variation in flower color among individuals.
Habit of plant in flower.
Flower, face view. Note the stamens opposite the petals.
Flower L.S.
Fruit

Portulaca (purslane)

Flowering shoots of a cultivated species.
Flower L.S.
Closer view of ovary L.S. and placentation.
Flower of P. oleracea, a weedy succulent species.
Fruits of P. oleracea.

Talinum (fameflower)

Inflorescence of T. teretifolium.
Flower.
Flower L.S.
Fruit in L.S. Note basal placentation.
Fruit dehiscing seeds.