Plants acaulescent, freely suckering; rosettes solitary or densely cespitose, 3-6 × 6-12 dm. Leaves mostly erect, widest near base, 20-40(-50) × 0.7-2.5 cm; blade yellowish green or deep green, with or without conspicuous white bud-prints on both surfaces, linear, firm, adaxially plane or somewhat concave toward apex, abaxially convex to deeply convex toward base; margins straight, filiferous or not, unarmed, fibers erect to spreading, sparse, white, filiform, brittle; apex acuminate to long-acuminate, spine brown or grayish, acicular, 0.8-1.9 cm. Scape 1.6-4 m. Inflorescences spicate or subspicate to narrowly racemose-paniculate, laxly flowered on distal 1/4-1/2; bracts caducous, narrowly triangular, 2-4 cm; peduncle 4 cm or shorter. Flowers 1 or 2-3(-6) per cluster, erect, (2.9-)3-5 cm; perianth yellow, tube funnelform, 8-11(-14) × 5-8(-13) mm, limb lobes erect to incurved, subequal, (7-)11-16 mm; stamens slightly exserted; filaments inserted high in perianth tube, 6-13 mm above tube base at 1 or 2 levels, erect, yellow, 1.5-2.2 cm; anthers light to deep yellow, (7.5-)10-17 mm; ovary 0.8-1.6 cm, neck constricted, 3-9 mm. Capsules short-pedicellate, obovoid, 1-2.2 cm, apex rounded to beaked. Seeds 3-3.5 mm.

Plant: perennial scapose herb; Rosettes densely caespitose, 30-60 cm high, 60-120 cm broad Leaves: several to numerous, 20-40(-50) cm long, 6-25 mm wide, narrowly linear to linear, widest at the base, straight, incurved or falcate, pliant to rather stiff, flat or somewhat convex towards apex, convex to deeply convex towards base, yellowish green to deep green, the margins with a narrow brown and white border with or without, white brittle threadlike fibers; teeth absent; terminal spine 8-20 mm long, brown to gray, fine or stoutish, weak and brittle to somewhat firm, close-grooved for most of its length INFLORESCENCE: with scape 1.3-2.5 m tall, spicate, subspicate, or narrowly racemose-paniculate, frequently crooked with numerous branchlets in upper 1/4 of flowering stalk, the stalk slender, green Flowers: 30-50 mm long, single or usually in clusters of 2-3(-6), with a strong, sweet fragrance; tepals subequal, (7-)11-16 mm long, 4-6 mm wide, spreading unequally at anthesis, suberect to reflexed, bright yellow to deep yellow; filaments 15-22 mm long, inserted high in tube at 1 or 2 levels, the outer ones (5-)6-10 mm above base of tube, the inner ones 5-11 mm above base of tube, pale yellow to bright yellow, the anthers (7.5-)10-17 mm long, pale yellow to deep yellow; ovary 8-15 mm long with constricted curved neck 3-9 mm long, greenish-yellow to lime-green, the style 20-26 mm long when stigma is receptive, yellow; floral tube deeply funnelform, (8-)9-14 mm long, 5-8 mm wide, becoming very narrow towards base, lime-green to yellow Fruit: capsules, 10-22 mm long, obovoid, rounded to apiculate; SEEDS 3-3.5 mm long Misc: desert scrub, grassland, juniper and oak woodlands; May-Jul REFERENCES: Hodgson, Wendy. 1999. Agavaceae. Ariz. – Nev. Acad. Sci. 32(1).