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Related to Bicarinate: potassium bicarbonate


a.1.(Biol.) Having two keel-like projections, as the upper palea of grasses.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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9 cm long, 8-9 cm in diameter (excluding the petals), apex rounded and bearing an apical coma of small sterile bracts; floral bracts suborbicular, navicular, thick-coriaceous and lignified along the median zone, membranaceous near the basal margins, bicarinate to tricarinate, enfolding the ovary, pale yellowish-castaneous except for the whitish marginal area, outside densely and coarsely white-lepidote, inside glabrous, apex acuminate and long-mucronate, 35-40 mm long, including the 10-13 mm long pale castaneous suberect mucron, 20-29 mm wide, equaling 3/4 of petals length.
Inflorescence branching to one order, interfoliar, erect, arching or pendulous, protogynous; peduncle usually elongated, circular to oval in cross section, densely covered in indument, often heavily armed with spines; prophyll short, bicarinate, fibrous, unarmed or armed with small spines or bristles, hidden in the leaf bases; peduncular bract much exceeding the prophyll, spindle-shaped, often rostrate, splitting longitudinally along the abaxial face, persistent or eroding, usually densely tomentose, heavily armed with spines or unarmed; rachis shorter than the peduncle bearing spirally arranged rachillae, each sustented by a narrow triangular bract; rachillae ca.