Amsinckia tessellata

Bristly fiddleneck

Amsinckia tessellata (Bristly fiddleneck), native California herb

(c) Matt Lavin, some rights reserved (CC BY) · licence

Family: Boraginaceae · Type: Herb · Native

Amsinckia tessellata (Bristly fiddleneck) is a native California herb in the Boraginaceae family, recognized by Calyx reduced to 2–4 fused, tip-notched lobes; 20-veined corolla tube; large gray cobblestone nutlets.

Bristly fiddleneck is a California native annual herb found in dry grasslands and disturbed areas across multiple California bioregions. Flowering from March to June, this plant produces vibrant yellow to orange flowers 8 to 16 millimeters long with distinctive funnel-shaped corollas. Growing with slender, bristly stems 10 to 50 centimeters tall, it has an upright and somewhat branching habit. Its narrow leaves are lance-shaped, alternating along the stem and covered in stiff, bristly hairs that give the plant its common name. The small fruits are textured like miniature cobblestones, with a gray surface that is dull and round-tubercled.

Identification and appearance

Key characters: Calyx reduced to 2–4 fused, tip-notched lobes; 20-veined corolla tube; large gray cobblestone nutlets

Habitat and range

California counties: San Bernardino, Los Angeles, Kern, Inyo, San Diego, Riverside, Mono, San Luis Obispo, Fresno, San Benito, Monterey, Ventura, Stanislaus, Contra Costa, Imperial, Lassen, Merced, Modoc, San Joaquin, Tehama, Siskiyou, Madera, Santa Barbara, Santa Cruz, Tulare

How to tell it apart

vs Phacelia: Amsinckia always has orange or yellow flowers; Phacelia flowers are blue, purple, or white.; vs Plantago: Amsinckia has coiled orange flower clusters; Plantago has dense spikes with tiny white-brown flowers.; vs Helminthotheca: Amsinckia has bristly stems but simple leaves; Helminthotheca leaves are prickly-bumpy textured.; vs Echium: Amsinckia flowers are orange-yellow; Echium flowers are blue-purple and distinctly lopsided.; vs Camissoniopsis: Amsinckia has coiled flower clusters; Camissoniopsis has 4-petaled evening primrose flowers.

Frequently asked questions

Is Amsinckia tessellata native to California?

Yes. Amsinckia tessellata is native to California (recorded as native).

Where in California does Amsinckia tessellata grow?

Amsinckia tessellata occurs in San Bernardino, Los Angeles, Kern, Inyo, San Diego, Riverside, Mono, San Luis Obispo and other counties.

What plant family does Amsinckia tessellata belong to?

Amsinckia tessellata is in the Boraginaceae family, genus Amsinckia.

Related species

Other California species in the same genus, family, or bioregion.

All Amsinckia species · All Boraginaceae

Sources: Jepson eFlora · Index of California Plant Names · CalPhotos

Last updated 2026-10-07

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.