Yucca harrimaniae Trelease ssp. harrimaniae
Harriman Yucca.Mo. Bot. Gard. Ann. Rep. 13: 59.1902.
Synonymy
Yucca colo-ma Andrews, Cat. Rockmont Nursery, 1926: 22; Catalogue, Autumn, 1926: 9, as Yucca coloma; in Nat. Hort. Magaz. 2: 232, 1932, as a synonym of Yucca neomexicanaType: TRELEASE, Helper, Carbon Co., Utah, 7 September 1901.
Other representative material studied.
| Utah: | fh 1178.30 Halfway Wash, Utah, 1,700 m; fh 1178.31, Henry Mts. Utah, 1,800m; fh 1178.50, Coal Cliffs Castle, Utah, 1,850m; fh 1178.74, Indian Canyon, Utah, 2,000m; fh 1178.75, Henry Mts., Utah, 1,550m; fh 1178.76, Springs Area, Utah, 1,500 m; fh 1179.36, Boulder Mts., Utah, 2,700 m; fh 1179.51, Lund, Utah, 1,550 m; fh 1178.87, Granite Wash, Utah, 1,525 m; fh 1179.77, Gunnison, Colorado, 2,000 m. |
Key to the Subspecies of Yucca harrimaniae
| 1. | Without rhizomes, leaves rigid, erect, clearly filiferous, usually in groups, inflorescence 40-140 cm long, flowers white | ssp. harrimaniae
| With rhizomes | 2 | 2. | Leaves sagging and flexible, leaning towards and on the ground, scarcely filiferous. rosettes widespread, inflorescence to 40 cm long, asexually reproductive | ssp. sterilis | Leaves stiff margin filiferous | 3 | 3. | Inflorescence 40-140 cm long, rosettes wide-spread, flowers white | ssp. neomexicana | Inflorescence to 1m long, rosettes in dense groups, flowers yellow to greenish | ssp. gilbertiana | | |||||||||||||||
Yucca harrimaniae fh 1179.13, May 1987
Sevier Plateau, Utah 1,700m, in full flower.