| Field notes | A medium-sized, single-stemmed palm. Stem up to 4 m high, 20-23 cm in diameter, with some spines in groups, partially or totally covered with dead leaf sheaths. Leaves 8-14; sheath and petiole green, black-setose, 117-190 cm long, sheath fibrous at margins, densely armed with 4-6 cm long, black, terete to flattened, slightly flexuous, grayish-floccose spines, and with others, up to 40 cm long, intermixed on abaxial side, petiole short, densely armed on upper lateral parts of convex abaxial side; rachis up to 4.5 m long, black-setose, armed with a few, up to 4 cm long, flattened, spines, usually in groups of 2-3; pinnae 92-110 per side, abaxial side golden, satiny, regurlarly arranged in one plane; basal pinnae 88-91 cm long, 1.5-4 cm wide; median pinnae 117-132 cm long, 9-11 cm wide; apical pinnae 34-41 cm long, 2.5-5 cm wide. Inflorescence erect: Prophyll 66-87 cm long, 24-26 cm wide; abaxial side flattened, adaxial side convexe with outsides flattened. Peduncular bract 116-127 cm long, 36 cm wide when open, inserted 52-54 cm rachis, abaxial side with a grayish-brown indumentum, or yellowish without indumentum, with a few light brown setae and some flattened, flexuous, whitish-floccose, 1 cm long spines in the upper part; peduncle 1.2 m long, 5.1-5.5 cm x 4.4-4.5 cm in cross-section beneath racjis, 9.2-12.2 cm x 7.1-9 cm at base, with some small, flexuous, whitish-floccose, 0.5 cm long spines between rachis and bract insertion. Rachis 57-61 cm long. Fruit turbinate to oblong, asymmetrical, very narrowed base, 7.1-8.7 cm long including a 0.5-1 cm long rostrum, 2.5-2.6 cm wide, with a 0.5-1-(2) cm long pedicel |
