Arabidella sensu Shaw (1965) (Mueller, 1853)

Lysak, Martin A., Edginton, Mark, Zuo, Sheng, Guo, Xinyi, Mandáková, Terezie & Al-Shehbaz, Ihsan A., 2022, Transfer of two Arabidella and two Cuphonotus species to the genus Lemphoria (Brassicaceae) and a description of the new species L. queenslandica, Phytotaxa 549 (2), pp. 235-240 : 237

Following the transfer of two of the six species of Arabidella sensu Shaw (1965) to Lemphoria , the remaining species can be distinguished by the following key.

1a. Annual herbs with basal leaf rosette at least during flowering; stems without bark ...................................................... A. nasturtium

1b. Woody shrubs or subshrubs without basal leaf rosette; stems usually with some bark.

2a. Fruiting pedicel divaricate to horizontal or slightly recurved; all leaves undivided, rarely some 2- or 3-sect ................... A. filifolia

2b. Fruiting pedicels suberect to ascending, straight; almost all leaves 2-, 3-, or multisect.

3a. Stems glabrous; flowers in corymb; fruit 1–2.5 mm wide; gynophore (0.8–) 1–2.2 mm long..................................... A. glaucescens

3b. Stems often papillate; flowers in lax raceme; fruit 0.8–1.5 mm wide; gynophore 0.1–0.5 mm long ................................. A. trisecta