Agave utahensis

Engelmann

S. Watson, Botany (Fortieth Parallel), 497.

IllustratedEndemic
Treatment appears in FNA Volume 26. Mentioned on page 450.

Plants acaulescent, suckering or not; rosettes solitary or sparingly cespitose, 1.5–6 × 1.5–10 dm. Leaves ascending, 12–50 × 1–5.5 cm; blade grayish green to yellowish green or green, without budprints, linearlanceolate or lanceolate, stiff, adaxially plane or concave toward apex, abaxially convex toward base; margins straight or undulate, nonfiliferous, conspicuously armed, horny from distalmost teeth to apical spine, teeth single, 2–12 (–15) mm, 1–4 cm apart, rarely absent; apical spine light gray to ivory white, acicular or subulate, 2–20 cm. Scape 1.7–5 m. Inflorescences spicate, racemose or narrowly paniculate, open to densely flowered; bracts caducous, narrowly triangular, 4–8 cm; lateral branches 50+, horizontal to slightly ascending, comprising distal 1/2–2/3 of inflorescence, shorter than 10 cm. Flowers 2–12 per cluster, erect, urceolate, 2.3–4.3 cm; perianth yellow, tube campanulate, 1–4 × 6.5–11.5 mm, limb lobes connivent, erect, subequal, 7–12 mm; stamens slightly exserted; filaments inserted at or 1–3 mm above base of perianth-tube, erect, white, 1.3–2.4 cm; anthers pale-yellow, 5–12 mm; ovary 1.2–2.9 cm, neck constricted, 3.5–8.5 (–10) mm. Capsules pedicellate, oblong to ovoid, 1–2.5 cm, apex beaked. Seeds 2–4 mm.

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Leaves 3–5.5 cm wide; rosettes 4–10 dm wide; flowers (2.6–)2.9–4.3 cm. Agave utahensis subsp. kaibabensis
1 Leaves 1–3 cm wide; rosettes 1.5–4 dm wide; flowers 2.3–3.2 cm. Agave utahensis subsp. utahensis

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

... more about "Agave utahensis"
pale-yellow +
longitudinal +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
width +  and length +
glandular-pubescent +  and glandular +
papillate +
light gray +  and ivory white +
subulate +  and acicular +
2 cm20 mm <br />0.02 m <br /> (20 cm200 mm <br />0.2 m <br />) +
James L. Reveal +  and Wendy C. Hodgson +
Engelmann +
armed +  and filiferous +
grayish green +  and yellowish green or green +
convex +, concave +, plane +  and lanceolate +
short to long +
? (?) +, ? (?) +  and Rigid (?) +
thick +  and thin +
reflexed +, erect +  and ascending +
triangular +
umbel-like +
oblong +  and ovoid +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
fibrous-rooted +
sw United States +
pubescent +  and glabrous +
1.3 cm13 mm <br />0.013 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
recurved +  and erect +
loculicidal +
oblong +  and ovoid +
open +  and densely flowered +
paniculate +  and racemose +
1/2 +  and 2/3 +
horizontal +  and slightly ascending +
10 cm100 mm <br />0.1 m <br /> (?) +
pseudopetiolate +, sessile +  and simple +
evergreen +
12cm;50cm +
1 cm10 mm <br />0.01 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
horny +, armed +  and nonfiliferous +
dentate +, serrulate +  and entire +
undulate +
Fleshy (?) +, Firm (?) +  and Rigid (?) +
0.85 cm8.5 mm <br />0.0085 m <br /> (1 cm10 mm <br />0.01 m <br />) +
constricted +
0.35 cm3.5 mm <br />0.0035 m <br /> (?) +  and 0.85 cm8.5 mm <br />0.0085 m <br /> (?) +
cylindrical +, ovoid +  and 3-angled +
1.2 cm12 mm <br />0.012 m <br /> (?) +  and 2.9 cm29 mm <br />0.029 m <br /> (?) +
succulent +
not +  and articulate +
umbel-like +
semisucculent +
S. Watson, Botany (Fortieth Parallel), +
1753 +  and 1754 +
cespitose +  and solitary +
170 cm1,700 mm <br />1.7 m <br /> (500 cm5,000 mm <br />5 m <br />) +
globose +, obovoid +  and flattened +
Illustrated +  and Endemic +
semiwoody +
branched +, , +  and unbranched +
aboveground +
3 +  and 1 +
papillate +
exserted +  and included +
subulate +
Agave utahensis +
species +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
campanulate +
6.5mm;11.5mm +
plant +, not +  and suckering +
polycarpic +  and monocarpic +
small;gigantic +
petal-like +