Epilobium nevadense

Epilobium nevadense is a rare and vulnerable species of flowering plant in the willowherb family Onagraceae. It is known from a few scattered populations in mountain ranges in Nevada, Utah, and northwestern Arizona. It grows on talus slopes composed of either volcanic or limestone origin from 5200–9000 feet in elevation. [1] [2][3] [4] [5]

Nevada willowherb

Vulnerable  (NatureServe)
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Onagraceae
Genus: Epilobium
Species:
E. nevadense
Binomial name
Epilobium nevadense
Munz, 1929

The nearest known relative of Nevada willowherb is Snow Mountain willowherb (Epilobium nivium), which has a similar appearance and grows in similar habitats. These two species together form Epilobium sect. Cordylophorurn subsect. Petrolobium and have been shown to form infertile hybrids in cultivation.[6][7]

References
  1. NatureServe Explorer profile for Epilobium nevadense http://explorer.natureserve.org/servlet/NatureServe?searchSciOrCommonName=epilobium+nevadense&x=0&y=0
  2. Nevada Natural Heritage Program profile for Epilobium nevadense http://heritage.nv.gov/taxon_detail/19451
  3. Arizona Natural Heritage Program profile for Epilobium nevadense https://drive.google.com/drive/folders/0BwLs0i-QWFssaFoxRzV6cEl0MTQ
  4. Munz, P. 1929. New plants from Nevada. Bulletin of the Torrey Botanical Club 56(3): 163-167. https://www.jstor.org/stable/2480628
  5. SEINet collection records for Epilobium nevadense http://swbiodiversity.org/seinet/taxa/index.php?taxon=82563
  6. Seavey, S. & P. Raven. Experimental hybrids in Epilobium (including sect. Zauschneria) species with N = 15 (Onagraceae). American Journal of Botany, Vol. 64, No. 4 (Apr, 1977), pp. 439-442.
  7. Raven, P. Generic and sectional delimitation in Onagraceae, tribe Epilobieae. Annals of the Missouri Botanical Garden, Vol. 63, No. 2. (1976), pp. 326-340. https://www.biodiversitylibrary.org/part/23802
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