Erect perennial 12-23 cm tall, glabrous except inflorescence; stem bluntly triangular, much-branched, woody below. Leaves sessile; lower leaves oblong-lanceolate, entire, with lamina 37-45 mm long, to 8 mm wide; upper leaves reduced to minute scales. Flowers in panicles; inflorescence branches usually solitary, 1-flowered, to 4 cm long; pedicel 1-1.5 mm long; bracteoles oblong, 1-2 mm long. Sepals unequal, ovate, 2.5-3 mm long. Corolla 10-12 mm long; hairs outside closely appressed, type iv, silvery; wings 1.2-1.5 mm wide, almost equal; calli obsolete. Ovary gibbous, keeled, 1-2 mm long. Fruit not seen.
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