Agave americana subsp. americana

Plants acaulescent or short-stemmed, trunks less than 2 m; rosettes open or dense. Leaves erect, ascending, or frequently reflexed, 100-200 × 15-25 cm; blade light green to green or glaucous-gray, sometimes variegated yellow or whitish, especially in cultivated forms, sometimes cross-zoned, lanceolate, adaxially plane and somewhat guttered near base, abaxially convex near base; margins straight or undulate to crenate, teeth 5-10 mm; apical spine conical or subulate, 2-5 cm. Scape 5-9 m. Inflorescences: lateral branches 15-35. Flowers 7-10 cm; perianth tube 8-20 × 12-20 cm; ovary 3-4.5 cm. Capsules 4-8 cm. Seeds unknown.