Acidic

Angelica archangelica

Arnica chamissonis

Cnicus benedictus

Arctium lappa

Calendula officinalis

Eschscholzia californica

Nepeta cataria

Chelidonium majus

Matricaria chamomilla

Chamaemelum nobile

Salvia sclarea

Codonopsis pilosula

Veronicastrum virginicum

Allium neapolitanum

Echinacea purpurea

Inula helenium

Foeniculum vulgare

Tanacetum parthenium

Solidago virgaurea

Hyoscyamus niger

Saussurea costus

Lavandula angustifolia

Melissa officinalis

Glycyrrhiza glabra

Agastache foeniculum

Lobelia inflata

Levisticum officinale

Althaea officinalis

Filipendula ulmaria

Leonurus cardiaca