Agave chrysantha

Peebles

Proc. Biol. Soc. Wash. 48: 139. 1935.

Common names: Golden-flowered agave
Endemic
Synonyms: Agave palmeri var. chrysantha (Peebles) Little
Treatment appears in FNA Volume 26. Mentioned on page 459.

Plants acaulescent, occasionally suckering; rosettes solitary or infrequently cespitose, 0.5–1.2 × 0.8–1 dm, rather open to somewhat dense. Leaves spreading to ascending, 40–75 (–82) × (4–) 8–10 (–11) cm; blade pale to glaucous or yellowish green to green, not cross-zoned, linearlanceolate to lanceolate, rigid, adaxially deeply guttered, abaxially convex; margins undulate to wavy, armed, teeth single, well defined, 4–10 mm, (0.8–) 1–3 (–4) cm apart, interstitial teeth (0–) 1–3 (–5), mostly along distal 2/3 of margins; apical spine reddish-brown or brown to gray, acicular, 2.5–4.5 cm. Scape 4–7 m. Inflorescences narrowly to broadly paniculate, open, not bulbiferous; bracts persistent, triangular, 1–5 cm; lateral branches (6–) 8–18, slightly ascending, comprising distal 1/4–1/3 of inflorescence, longer than 10 cm. Flowers 12–21 per cluster, erect, 3.5–6.5 (–6.7) cm; perianth golden yellow, tube not shallow, campanulate, 6–18 × (7–) 10–21 (–26) mm, limb lobes erect persistent and often leathery during and after anthesis, strongly unequal, (6–) 9–15 (–18) mm; stamens long-exserted; filaments inserted at 2 levels ca. mid perianth-tube, erect, pale-yellow, (3.2–) 3.5–5 cm; anthers yellow, 7–20 mm; ovary (1.4–) 2.2–3 (–3.3) cm, neck slightly constricted, (0.5–) 4–6 (–8) mm. Capsules sessile or short-pedicellate, narrowly oblong to obovoid, 3.5–5 cm, apex short-beaked. Seeds 6–7 mm. 2n = 60.


Phenology: Flowering late spring–summer.
Habitat: Sandy to gravelly places on granitic or volcanic soils in desert scrub, grasslands, pinyon-juniper, and oak woodlands
Elevation: 700–2100 m

Discussion

Agave chrysantha hybridizes with A. murpheyi, A. palmeri, A. parryi var. couesii, and A. delamateri.

Selected References

None.

Lower Taxa

None.

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

... more about "Agave chrysantha"
longitudinal +
0.7 cm7 mm <br />0.007 m <br /> (2 cm20 mm <br />0.02 m <br />) +
width +  and length +
glandular-pubescent +  and glandular +
papillate +
brown +  and gray +
2.5 cm25 mm <br />0.025 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
James L. Reveal +  and Wendy C. Hodgson +
Peebles +
armed +  and filiferous +
not cross-zoned +  and pale +
yellowish green to green +  and glaucous +
convex +  and lanceolate +
short to long +
thick +  and thin +
persistent +
reflexed +, erect +  and ascending +
triangular +
umbel-like +
short-pedicellate +  and sessile +
narrowly oblong +  and obovoid +
3.5 cm35 mm <br />0.035 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Golden-flowered agave +
fibrous-rooted +
700–2100 m +
3.2 cm32 mm <br />0.032 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
pubescent +  and glabrous +
3.5 cm35 mm <br />0.035 m <br /> (5 cm50 mm <br />0.05 m <br />) +
recurved +  and erect +
loculicidal +
oblong +  and ovoid +
Sandy to gravelly places on granitic or volcanic soils in desert scrub, grasslands, pinyon-juniper, and oak woodlands +
not bulbiferous +  and open +
1/4 +  and 1/3 +
10 cm100 mm <br />0.1 m <br /> (?) +
pseudopetiolate +, sessile +  and simple +
75 cm750 mm <br />0.75 m <br /> (82 cm820 mm <br />0.82 m <br />) +
10 cm100 mm <br />0.1 m <br /> (11 cm110 mm <br />0.11 m <br />) +
evergreen +
40cm;75cm +
8 cm80 mm <br />0.08 m <br /> (10 cm100 mm <br />0.1 m <br />) +
dentate +, serrulate +  and entire +
undulate +  and wavy +
Fleshy (?) +, Firm (?) +  and Rigid (?) +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
constricted +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 0.6 cm6 mm <br />0.006 m <br /> (?) +
3 cm30 mm <br />0.03 m <br /> (3.3 cm33 mm <br />0.033 m <br />) +
cylindrical +, ovoid +  and 3-angled +
2.2 cm22 mm <br />0.022 m <br /> (?) +  and 3 cm30 mm <br />0.03 m <br /> (?) +
succulent +
not +  and articulate +
umbel-like +
semisucculent +
Flowering late spring–summer. +
Proc. Biol. Soc. Wash. +
cespitose +  and solitary +
400 cm4,000 mm <br />4 m <br /> (700 cm7,000 mm <br />7 m <br />) +
globose +, obovoid +  and flattened +
semiwoody +
long-exserted +
branched +, , +  and unbranched +
aboveground +
3 +  and 1 +
papillate +
exserted +  and included +
subulate +
Agave palmeri var. chrysantha +
Agave chrysantha +
species +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
2.1 cm21 mm <br />0.021 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
not shallow +
0.6 cm6 mm <br />0.006 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
campanulate +
10mm;21mm +
plant +  and suckering +
polycarpic +  and monocarpic +
small;gigantic +
petal-like +