Blazingstar (3)

Blazingstars, the Mentzelia genus, are also called Eveningstars because they do not open until late in the afternoon, making photography a challenge. During the day their flowers are tightly closed so easily overlooked. They are in the Stickleaf family, so named because their leaves have barbed hairs and stick to clothing and fur like Velcro. Mentzelia are difficult to distinguish. I found this article by Robert Sivinski to be very useful. See also yellow Blazingstars.

Mentzelia decapetala

Bractless Blazingstar
Mentzelia nuda

Family: Stickleaf (Loasaceae)
AKA: Sand Lily, Upright Blazingstar, Bractless Stickleaf
Photo taken on: July 28, 2008
Location: Wet Mountains, Eastern CO
Life Zones: Plains to foothills
Habitat: Dry meadows, disturbed areas, roadsides

Grows to 3ft tall with flowers over 3" across that open in the evening. Flowers have 10 petals and numerous stamens that are almost as long as the petals. It is similar to Mentzelia decapetala (not in this site), which has much larger flowers and shorter stamens.

Mentzelia multiflora

Adonis Blazingstar
Mentzelia multiflora

Family: Stickleaf (Loasaceae)
AKA: Manyflowered Mentzelia, Desert Blazingstar, Pegapega
Photo taken on: August 27, 2013
Location: Abiquiu, NM
Life Zones: Plains to foothills
Habitat: Dry sandy areas, roadsides

Grows to 2 ½ft tall with stout white branched stems.  Flowers are 2" across with long stamens. Most images that I have seen on the Internet are bright yellow, but I mostly see pale yellow, almost white, flowers in Los Alamos and Rio Arriba counties. Identified from Santa Fe Botanical Garden.

Mentzelia multiflora

Mentzelia rusbyi

Rusby's Blazingstar
Mentzelia rusbyi (Mentzelia nuda var. rusbyi)

Family: Stickleaf (Loasaceae)
AKA:
Photo taken on: August 19, 2008
Location: Burnt Mesa, NM
Life Zones: Foothills and montane
Habitat: Roadsides, pinyon-juniper woodlands

Grows to 3ft tall with stout stems branching only in the top half, unlike M. multiflora which branches the entire length. Leaves are shallowly toothed and similarly barbed. Flowers are white. Found at higher elevations than M. multiflora.

White/Cream Single Flowers