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Spiny-hair Blazing Star
Mentzelia tricuspis
About Spiny-hair Blazing Star (Mentzelia tricuspis) 0 Nurseries Carry This Plant Mentzelia tricuspis is a species of flowering plant in the family Loasaceae known by the common name spinyhair blazingstar. It is native to the Southwestern United States and California where it grows in deserts, such as the Sonoran Desert, and adjacent mountains in scrub and woodland habitats. Mentzelia tricuspis is an annual herb growing erect or spreading to a maximum height near 27 centimeters. The leaves are up to 12 centimeters long and toothed or wavy along the edges. The inflorescence is a cluster of cream-colored flowers with petals up to 5 centimeters long and thready-tipped stamens. The fruit is a cylindrical utricle up to 1. 5 centimeters long which contains many tiny whitish beaked seeds.
Plant Description
Plant Type
Plant Type
Annual herb

10.7 in tall

Flower Color
Flower Color
Yellow, White, Cream

Wildlife Supported

Butterflies & moths hosted ( 1 likely * ) SHOW ALL
Protogygia album Image
Protogygia albumProtogygia album

Landscaping Information
Natural Setting
Annual Precipitation: 3.2" - 23.7", Summer Precipitation: 0.56" - 2.29", Coldest Month: 28.1" - 61.6", Hottest Month: 56.9" - 88.8", Humidity: 1.96" - 42.80", Elevation: 165" - 7717"

Alternative Names
Common Names: Desert Blazingstar, Spinyhair Blazingstar, Spinyhair Stickleaf

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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