Yucca whipplei ssp. newberryi


Yucca whipplei ssp. newberryi (McKelvey) HOCHSTÄTTER, F., Succulenta 79 (1): 32-44, 2000

Synonyms:
Yucca newberryi McKelvey 1947, Yucca South west U.S. 2: 49.

Type location:
Below rim of south wall of Colorado River, at New Water Point.

Distribution:
Arizona. Mohave Co.: Tufts on rocks, mouth of Diamond River, west side of wall along Diamond Creek, close to the Colorado River, alt 450 m., among granite rocks. Below rim of south wall of Colorado River, at New Water Point. Found from Separation Rapids to Emery Falls. Growing on granite for an extent of several, miles on Lake Mead beginning near Emery Falls and extending up Lake Mead, Grand Wash, Lake Mead,

Short description of the species:
Below forming solitary rosettes and dying after fruiting, Flower stalk 2.8 m. tall; diameter 0.6 m., above base 10.2 cm.; buds pale rose pink, flower creamy, pleasingly fragrant.

Hardiness:
Yucca whipplei ssp. newberryi is probably not very hardy.
I have lost my two plants during the wet and cold summer of 2000! Next time I get seeds, will the plants be grown inside the greenhouse during the summer and they will be moved into a frost free place during the winter time.

Pictures:

# 1128 Yucca whipplei ssp: newberryi
Lava Falls, inner Grand Canyon, Arizona, 900 m. fh 1179.71, sown June 1th 1999.
Photo from October 1999.
Photo by Benny Moeller Jensen ©2000.

# 1128B Yucca whipplei ssp: newberryi
Lava Falls, inner Grand Canyon, Arizona, 900 m. fh 1179.71, sown June 1th 1999.
Photo from May 19th 2000.
Photo by Benny Moeller Jensen ©2000.

Notes:
1.        According to many authors this subspecies is "just" a natural variation of Yucca whipplei.

2.        Some authors place Yucca whipplei and it's subspecies in the Genus Hesperoyucca. One of the reasons to this is that the seedlings form a distinct bulb which no other Yucca does. another reason cold also be that Yucca whippleiand it's subspecies are pollinated by another species of Yucca moth which only do feed on Yucca whipplei!

Reference:
CLARY, Karen H., (http://www.agavaceae.com/botanik/pflanzen/botanzeige_scan_en.asp?gnr=220&scan=22190&cat=5&name=Hesperoyucca%C2%A0newberryi)
HOCHSTÄTTER, F., Succulenta 79 (1): 32-44, 2000, incl. new combination Yucca whipplei ssp. newberryi
HOCHSTÄTTER, F; (2000), YUCCA (vol. I): 22 (Yucca whipplei ssp. newberryi)
MCKELVEY, Yuccas southwest. U.S. 2:49 (1947) (Yucca newberryi)
THIEDE, J., Illustrated handbook of succulent plants vol. 1. (Monocotyledons (Eggli ed.)): 85-87, 2002. (Hesperoyucca whipplei).
WEBBER, Agric. Monograph U.S.D.A. 17:33 (1953) as syn for Yucca whipplei!



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