Plant Sex: Flowers usually bisexual

Flowers: Actinomorphic

Flowers: perigynous (with hypanthium). Carpels free above, connate below.  Ovary superior, inferior, or half inferior.

Inflorescence: Racemes or cymes

Fruits: Capsules and follicles

Habit: Perennial herbs. Saxifraga means "rock breaker"

Leaves: Alternate or basal, without stipules

Examples:
Heuchera sanguinea (coral bells, a commonly cultivated species)

• Habit of plant in flower
• Inflorescence
• Flower close-up
• Flowers L.S.

Heuchera - some native species

• H. americana (alumroot) in flower
• H. longiflora from Virginia
• H. micrantha from Little Grand Canyon, Jackson Co. IL.
• H. richardsiana, a prairie inhabiting species.

Saxifraga (saxifrage)

• Habit of S. forbesii in flower at Little Grand Canyon, Jackson Co. IL.
• Rosette of leaves and young developing inflorescence.
• Flower of S. forbesii.
• Flower of S. stolonifera, the "strawberry begonia", a common houseplant.

Tiarella (foamflower)

• Habit of T. cordifolia in flower from Missouri Botanical Garden.
• Inflorescence and closer view of flowers of T. cordifolia.

Mitella (mitterwort)

• Habit of M. diphylla in flower at Little Grand Canyon, Jackson Co. IL.
• Close-up of flower of M. diphylla, Little Grand Canyon, Jackson Co. IL.
• Fruits of M. diphylla. These capsules dehisce the seeds via a splash cup mechanism where rain drops displace the seeds.
  

Astilbe

• Habit of A. thunbergii in flower

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Note: the woody Hydrangeaceae (Hydrangea and Philadelphus) and Grossulariaceae (Ribes) were traditionally  included within Saxifragaceae. Molecular evidence is in agreement with the concept of several families.  The genus Parnassia is now in its own family Parnassiaceae.