Cardamine latior

Detailed description

Perennial herb, caespitose, with many leaves forming a small, compact rosette. Leaves pinnate, up to 40–50 mm long, glabrous, green, ± coriaceous; petiole 8–12 mm long, 1.7–1.8 mm wide, winged and sheathing at base. Leaflets 11–15, in pairs and usually overlapping in distal part of leaf, alternate and distant in lower part of leaf, reniform, orbicular to broadly elliptic, hydathodes prominent on margin and in axil of petiolule, margin entire, base cordate, ± truncate to obtuse, apex obtuse to rounded; terminal leaflet lamina 3.5–4.7 × 3.5–4.1 mm, with 2 conspicuous lateral lobes; lateral leaflet lamina 1.5–2.5 × 0.7–2.2 mm; petiolules up to 0.5 mm long, often ± absent. Cauline leaves occasionally present subtending only the lower 1–2 flowers; similar to rosette leaves, but with fewer leaflets and smaller in all parts. Inflorescence usually up to 50 mm long, occasionally up to 145 mm in sheltered sites, 1.2–1.6 mm diameter at base, glabrous, compact and not elongating after flowering, fastigiate, racemose, flowers usually crowded in upper half. Pedicels 5–10–(17) mm long, 0.8–1.2 mm diameter, usually erect. Sepals 2.0–2.4 × 0.7–1.2 mm, oblong to elliptic, glabrous, margin white and membranous, apex obtuse to rounded, base truncate. Petals 3.2–4.0 × 1.2–1.5 mm, white, pale pink or purple, limb obovate; apex obtuse to rounded; base cuneate to attenuate, tapering to an indistinct claw. Filaments 6, 1.6–2.4 mm long; anthers 0.4–0.5 mm long. Ovary 1.5–2.6 mm long, 0.5–0.6 mm diameter, terete, glabrous; stigma 0.3–0.5 mm diameter. Siliques 12–23 × 1.7–2.2 mm, crowded, erect, beak 0.7–1.4 mm long; replum 0.9–1.1 mm wide; septum with a prominent central vein. Seeds 1.4–2.1 mm long, 1.1–1.5 mm wide, 0.4–0.5 mm thick, rounded or oblong, red-brown.