Agave toumeyana

Trelease

Contr. U.S. Natl. Herb. 23: 140. 1920.

IllustratedEndemic
Treatment appears in FNA Volume 26. Treatment on page 447. Mentioned on page 444, 448.

Plants acaulescent, freely suckering; rosettes densely cespitose, (0.3–) 1–5 × 1.5–6 dm. Leaves ascending to erect, (3–) 9–46 × 0.5–2 cm; blade light green to yellowish green or dark green with white budprints on both surfaces, linear to linearlanceolate, firm, adaxially plane toward apex, abaxially convex toward base; margins straight, infrequently denticulate, filiferous, fibers conspicuous, white, curled, infrequently sparse or absent, teeth sparse or absent, in proximal 1/2 of blade or near base; apex acute to long-acuminate, spine brown to grayish, subulate to filiform, 0.6–2 cm. Scape 1.5–3 m. Inflorescences spicate, laxly to rather densely flowered on distal 1/3; bracts caducous, linear-triangular, 1–3.5 cm; peduncle 5 mm or shorter. Flowers 1 or 2, slightly recurved, 1.6–2.8 cm; perianth greenish white, tube campanulate, 3–4.5 × 6–10 mm, limb lobes erect to incurved, subequal, 6.5–10 mm; stamens slightly exserted; filaments inserted 1–3.5 mm above base of perianth-tube, erect, white, 1.1–1.7 cm; anthers pale-yellow, 7–16 mm; ovary 0.8–1.6 cm, neck slightly constricted, 3–7 mm. Capsules sessile, oblong, 0.9–1.5 cm, apex short-beaked. Seeds 2.5–3 mm.

Discussion

Varieties 2 (2 in the flora).

Both varieties hybridize with Agave chrysantha.

Selected References

None.

Key

1 Leaves 40–70 per mature rosette, 19–46 × 1.2–2 cm, margins dentate, or denticulate only near base. Agave toumeyana var. toumeyana
1 Leaves 100–200 per mature rosette, (3–)9–20(–27) × 0.5–1.2 cm, margins denticulate below mid leaf. Agave toumeyana var. bella

"broadened" is not a number."dm" is not declared as a valid unit of measurement for this property.

... more about "Agave toumeyana"
pale-yellow +
longitudinal +
0.7 cm7 mm <br />0.007 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
width +  and length +
glandular-pubescent +  and glandular +
papillate +
sharp-pointed +
James L. Reveal +  and Wendy C. Hodgson +
Trelease +
armed +  and filiferous +
light green +  and yellowish green or dark green +
convex +  and plane +
short to long +
thick +  and thin +
reflexed +, erect +  and ascending +
linear-triangular +
umbel-like +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
fibrous-rooted +
conspicuous +
pubescent +  and glabrous +
1.1 cm11 mm <br />0.011 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
loculicidal +
oblong +  and ovoid +
flowered +  and spicate +
paniculate +  and racemose +
pseudopetiolate +, sessile +  and simple +
3 cm30 mm <br />0.03 m <br /> (9 cm90 mm <br />0.09 m <br />) +
evergreen +
9cm;46cm +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
erect +  and incurved +
0.65 cm6.5 mm <br />0.0065 m <br /> (1 cm10 mm <br />0.01 m <br />) +
dentate +, serrulate +  and entire +
denticulate +
Fleshy (?) +, Firm (?) +  and Rigid (?) +
constricted +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 0.7 cm7 mm <br />0.007 m <br /> (?) +
cylindrical +, ovoid +  and 3-angled +
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 1.6 cm16 mm <br />0.016 m <br /> (?) +
succulent +
not +  and articulate +
umbel-like +
5 cm50 mm <br />0.05 m <br /> (?) +
semisucculent +
Contr. U.S. Natl. Herb. +
150 cm1,500 mm <br />1.5 m <br /> (300 cm3,000 mm <br />3 m <br />) +
globose +, obovoid +  and flattened +
Illustrated +  and Endemic +
brown +  and grayish +
subulate +  and filiform +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
semiwoody +
branched +, , +  and unbranched +
aboveground +
3 +  and 1 +
papillate +
exserted +  and included +
subulate +
Agave toumeyana +
species +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
campanulate +
6mm;10mm +
plant +  and suckering +
polycarpic +  and monocarpic +
small;gigantic +
petal-like +