Yucca elata var. elata

unknown
Synonyms: Yucca angustifolia var. elata Engelmann Yucca angustifolia var. radiosa unknown Yucca radiosa unknown
Treatment appears in FNA Volume 26. Treatment on page 432. Mentioned on page 428.
Click plate for higher resolution version.
Illustrator: Bee F. Gunn
Plants caulescent, arborescent, 1.2–4.5 m. Stems 1–2.5 m. Leaf blade 30–95 × 0.4–1.3 cm. Inflorescences paniculate, 7–15 dm; branches 0.7–2.5 dm; peduncle 1–2 m. Flowers: tepals 4.5–5.7 × 1.3–3.2 cm; filaments 2–2.5(–3.2) cm; anthers 3.2–4.8 mm; pistil 2.8–3.2 cm. Capsules 5–8.2 × 2.5–4 cm. 2n = 30.

Phenology: Flowering spring–early summer.
Habitat: Desert hillsides, grasslands
Elevation: 400–1900 m

Distribution

V26 889-distribution-map.jpg

Ariz., N.Mex., Tex., n Mexico (Chihuahua, Coahuila, Sonora).

Discussion

Yucca elata var. elata is quite variable according to both S. D. McKelvey (1938–1947) and J. M. Webber (1953). The plants are arborescent with peduncles and inflorescences shorter than to as long as the stems, and are found from west Texas through southern New Mexico and southeastern and central Arizona. Hybrids between Y. elata and Y. glauca, Y. constricta, and Y. baileyi are thought to occur in areas of sympatry (J. M. Webber 1953).

References

None.

Lower Taxa

No lower taxa listed.