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FNA | Family List | FNA Vol. 26 | Agavaceae | Agave

3. Agave schottii Engelmann, Trans. Acad. Sci. St. Louis. 3: 305. 1875 (as schotti).

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.

Varieties 2 (2 in the flora): sw United States, nw Mexico.

1 Leaves 0.7–1.2 cm wide, blade yellowish green, with conspicuous bud-prints, margins filiferous, apical spine 0.8–1.2 cm; flowers 2.9–4.2 cm; inflorescences spicate.   3a var. schottii
+ Leaves 1.2–2.5 cm wide, blade deep green, without bud-prints, margins nonfiliferous, apical spine 1.2–1.9 cm; flowers 3.5–5 cm; inflorescences subspicate to narrowly racemose-paniculate.   3b var. treleasei


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