Spiny-hair Blazing Star
NameSpiny-hair Blazing Star
Scientific NameMentzelia asperula
Common NamesSpiny-hair Blazing Star, Rough Blazing Star, Stickleaf
Plant FamilyLoasaceae
Natural HabitatThis plant thrives in arid and semi-arid environments, commonly found in deserts, rocky slopes, washes, and disturbed areas across the southwestern United States and northern Mexico. It prefers well-drained, sandy, or gravelly soils.
Parts Usedwhole_plant
Medicinal Actionsastringent,anti-inflammatory
Traditional UsesTraditionally, various Mentzelia species, including those with rough hairs, have been used by Native American groups. The whole plant, particularly the leaves and stems, was often prepared as a poultice for external application to soothe skin irritations, minor wounds, and insect bites, leveraging its sticky nature and potential anti-inflammatory properties.
Active Constituentsflavonoids, tannins
Preparation Methodspoultice,infusion,powder
Contraindications & WarningsDue to the barbed hairs, direct contact with the fresh plant may cause mechanical irritation for some individuals. As with many less-studied plants, pregnant or lactating individuals and those with known allergies to plants in the Loasaceae family should exercise caution or avoid use.
Cultivation NotesSpiny-hair Blazing Star requires full sun exposure and extremely well-drained soil, mimicking its native desert habitat. It is drought-tolerant once established and typically propagates by seed, often self-seeding in suitable conditions. Minimal watering is required.
Raritycommon
Description
Mentzelia asperula is an annual or biennial herb characterized by its numerous pale yellow to creamy white, five-petaled flowers that typically open in the afternoon. Its stems and leaves are covered with stiff, barbed hairs, giving the plant a distinctive rough or 'spiny' texture.
