Yucca angustissima var. angustissima

Endemic
Treatment appears in FNA Volume 26. Treatment on page 434. Mentioned on page 435.
Revision as of 05:11, 30 July 2020 by imported>Volume Importer
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Plants acaulescent or caulescent. Stems procumbent, 0.1–0.4 m. Leaf-blade narrow, long-tapering and primarily flat or concave distally, 25–45 × 0.5–0.8 cm, mostly flexible, smooth adaxially and abaxially. Inflorescences racemose, 8–10 dm, glabrous; peduncle 0.3–0.5 m. Flowers 4.5–5.5 cm; tepals pale green, often tinged rose or rosy purple; filaments 0.7–2.5 cm; anthers 3.2 mm; pistil 2.5–2.8 cm; style 10–13 mm. Capsules often deeply constricted near center, 3.5–5 (–5.7) cm.


Phenology: Flowering spring–early summer.
Habitat: Sandy places, sandstone outcrops, rocky hillsides of deserts
Elevation: 900–2200 m

Discussion

Selected References

None.

Lower Taxa

None.

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

longitudinal +
3.2 cm32 mm <br />0.032 m <br /> (?) +
glandular-pubescent +  and glandular +
long-acuminate +
William J. Hess +  and R. Laurie Robbins +
Engelmann ex Trelease +
elliptic +, ovate +, oblanceolate +, lanceolate +  and linear +
expanded +
fleshy +  and rigid +
scale-like +
5 cm50 mm <br />0.05 m <br /> (5.7 cm57 mm <br />0.057 m <br />) +
constricted +
3.5 cm35 mm <br />0.035 m <br /> (5 cm50 mm <br />0.05 m <br />) +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Ariz. +, N.Mex. +  and Utah. +
900–2200 m +
elongated +
pubescent +  and glabrous +
flattened +
0.7 cm7 mm <br />0.007 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
broadened +
5.5 cm55 mm <br />0.055 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
4.5 cm45 mm <br />0.045 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
septicidal +, 2cm +  and 3cm +
constricted +
fleshy +  and dry +
Sandy places, sandstone outcrops, rocky hillsides of deserts +
80 cm800 mm <br />0.8 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
25 cm250 mm <br />0.25 m <br /> (45 cm450 mm <br />0.45 m <br />) +
concave +, flat +  and long-tapering +
0.5cm;0.8cm +
long-lived +  and annual +
green +, gray +, brownish +  and white +
denticulate +  and entire +
0.4 cm4 mm <br />0.004 m <br /> (2 cm20 mm <br />0.02 m <br />) +
6-lobed +
not +  and articulate +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
30 cm300 mm <br />0.3 m <br /> (50 cm500 mm <br />0.5 m <br />) +
campanulate +  and globose +
semisucculent +
Flowering spring–early summer. +
oblong-cylindrical +  and obovoid +
2.5 cm25 mm <br />0.025 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Rep. (Annual) Missouri Bot. Gard. +
0 cm0 mm <br />0 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
ovate +, obovate +, round +  and flattened +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
acicular +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
exserted +  and included +
aboveground +  and subterranean +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
white;pale green +
1 +  and 3 +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
white +  and pale green +
exserted +  and included +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Clistoyucca +  and Samuela +
Yucca angustissima var. angustissima +
Yucca angustissima +
variety +
rosy purple;tinged rose;pale green +
distinct +
3cm +  and 6.5cm +
orbiculate +  and lanceolate-elliptic +
1.3cm;2.5cm +
caulescent +  and acaulescent +
forming small to large colonies +  and solitary +
0 cm0 mm <br />0 m <br /> (300 cm3,000 mm <br />3 m <br />) +
aboveground +  and subterranean +
polygamodioecious +, dioecious +, monoecious +, polycarpic +  and monocarpic +
small;gigantic +
petal-like +