is a specific kind of: herb, herbaceous plant.

is a broader term that covers: Saxifraga aizoides, yellow mountain saxifrage | fair-maids-of-France, meadow saxifrage, Saxifraga granulata | mossy saxifrage, Saxifraga hypnoides | Saxifraga occidentalis, western saxifrage | purple saxifrage, Saxifraga oppositifolia | Saxifraga stellaris, star saxifrage, starry saxifrage | mother-of-thousands, Saxifraga sarmentosam, Saxifraga stolonifera, strawberry geranium, strawberry saxifrage.

is a member of: genus Saxifraga, Saxifraga.