Rorippa micrantha (Roth) Jonsell

Annual herb with a taproot.. Stems erect or ascending, up to 70 cm. high but often much shorter, branched at least in upper parts, somewhat pubescent especially basally.. Basal leaves lyrate-pinnatipartite, in an evanescent rosette; cauline leaves petiolate, auriculate, nearly amplexicaul, broadly oblong-elliptic in outline, pinnatisect to lyrate-pinnatipartite (in E. Africa rarely simple and only coarsely incised); lateral lobes usually in 2–5 pairs, sessile, elliptic to lanceolate, serrate, up to 3 cm. long.. Racemes terminal and axillary, ebracteate, with numerous small yellowish flowers, in fruit rather lax, up to 20 cm. long.. Pedicels spreading, straight, 2.5–5 mm. long.. Sepals light to yellowish green, elliptic, 1.5–2.5 mm. long.. Petals pale yellow, sometimes with a violet tinge, spathulate, 2–3 mm. long, usually longer than the sepals.. Anthers ± 0.7 mm. long.. Ovary ellipsoid to cylindrical, with very short style and a flat expanded stigma.. Siliqua linear, straight, (8–)14–25 mm. long., 1.8–2.5 mm. broad, with a 1–2.2 mm. long and 0.5–0.8 mm. broad style; stigma broader than style and slightly bifid.. Seeds red-brown, finely orbicular to broadly elliptic in outline, 0.5–0.8 mm. long.. Fig. 19.

Weed in settled areas, perhaps only incidental.