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Yucca angustissima

Yucca angustissima

Yucca angustissima

Yucca angustissima

Yucca angustissima

Yucca angustissima (Narrow Leaf Yucca)
Asparagaceae (Asparagus Family)
Synonym: Agavaceae (Agave Family)

Semi-desert, foothills. Woodlands, canyons, openings. Spring.
Above and left: Canyons of the Ancients National Monument, April 10, 2017, April 27, 2005,
,, November 4, 2004, April 22, 2016.

Yucca angustissima flower stems are thick and multi-colored, elongating quickly and commonly growing from three to five feet tall.

Yucca angustissima leaves range from just six inches to well over twenty inches.

It is common for Yucca angustissima to be found in colonies of a dozen or more plants sprouted from roots of the parent plant.  The plants shown have typical leaves --  about a foot long.

Notice that the plants are growing in straight lines. A rather thick root grows just below the surface from the parent plant and forms the new plants.

In the Four Corners region Yucca angustissima typically is acaulescent, i.e., growing without a stem with leaves in a rosette at ground level. The second photograph at left shows a plant with 16 inch long green leaves and many year's of dried leaves below the green leaves. The stem, which is also about 16 inches long, is covered by the dry leaves.

 

Yucca angustissima

Yucca angustissima

Yucca angustissima (Narrow Leaf Yucca)
Asparagaceae (Asparagus Family)
Synonym: Agavaceae (Agave Family)

Semi-desert, foothills. Woodlands, canyons, openings. Spring.
Canyons of the Ancients National Monument, May 24, 2013 and April 27, 2007.

Flower clusters (several feet long) are delicate and very eye-catching in the spring Pinyon-Juniper forest.  Flower petals are thick, waxy, and long-lasting.  The flower of Yucca angustissima is very similar to that of Yucca harrimaniae, but usually Y. angustissima flowers bulge in the center and taper about the same to the top and to the bottom.  The base of Y. harrimaniae flowers is broader than the top.

Yucca angustissima
Yucca angustissima (Narrow Leaf Yucca)
Asparagaceae (Asparagus Family)
Synonym: Agavaceae (Agave Family)

Semi-desert, foothills. Woodlands, canyons, openings. Spring.
Corona Trail, Utah, June 7, 2007.

These young developing green seed capsules still have the flower petals hanging on.  The capsules will dry to a buff brown, split, and spill their seeds.

Yucca angustissima
Yucca angustissima (Narrow Leaf Yucca)
Asparagaceae (Asparagus Family)
Synonym: Agavaceae (Agave Family)

Semi-desert, foothills. Woodlands, canyons, openings. Spring.
Canyons of the Ancients National Monument, March 13, 2007.

Pack Rats, Deer, and other critters nibble Yucca leaves.  This plant was nibbled over the 2006-2007 winter and you can see from the first buff colored row of nibbled leaves below the green that the critters have been returning to nibble for several years.  At the very bottom of the plant there are, however, many long leaves indicating that until about five years ago no critters were eating the leaves.