Stackhousia Sm.

Herbs, stems striated and sometimes woody. Leaves fleshy or leathery, petals free at base but connate at midpoint. Ovaries connate along central axis Stackhousia
Spikes dense, flowers single along its axis. Corolla whitish to cream
Spikes often long and slender, usually interrupted with flowers in groups of 1–6 along its axis. Corolla greenish-yellow to yellow; lobes narrow