Boraginaceae
Flatspine stickseed
Lappula occidentalis
- Family
- Boraginaceae
- Genus
- Lappula
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Common names
By language (1)
- English
- Flatspine stickseed
Synonyms
- Echinospermum brachycentrum var. brachystylum A.Gray
- Echinospermum desertorum (Greene) K.Schum.
- Echinospermum occidentale (S.Watson) K.Schum.
- Echinospermum redowskii var. occidentale S.Watson
- Lappula brachystyla (A.Gray) J.F.Macbr.
- Lappula desertorum Greene
- Lappula echinata var. occidentalis (S.Watson) B.Boivin
- Lappula leucotricha Rydb.
- Lappula patagonica Macloskie & Dusén
- Lappula redowskii var. desertorum I.M.Johnst.
- Lappula redowskii var. occidentalis (S.Watson) Rydb.
Flowers
- In flower
- March to June (from 152 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Annual, Biennial
- In the US and Canada
- Alaska: native, Canada: native, Lower 48 states: native
Photos
FlowerPhoto: mfeaver, CC BY 4.0, from iNaturalist 
FlowerPhoto: Without Borders, CC0, from iNaturalist 
FlowerPhoto: Mark Pollock, CC BY 4.0, from iNaturalist 
FlowerPhoto: Robbie Hannawacker, CC0, from iNaturalist 
LeavesPhoto: Syd Cannings, CC BY 4.0, from iNaturalist 
LeavesPhoto: Syd Cannings, CC BY 4.0, from iNaturalist 
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Tessa L., CC0, from iNaturalist 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Eric Lamb, CC BY 4.0, from iNaturalist 
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Kenraiz, CC BY-SA 4.0, from Wikimedia Commons
More in Lappula
- European stickseedLappula squarrosaBoraginaceae
- Lappula barbataBoraginaceae
- Lappula heteracanthaBoraginaceae
- Margined stickseedLappula marginataBoraginaceae
- Lappula spinocarposBoraginaceae
- Lappula microcarpaBoraginaceae
- Lappula sinaicaBoraginaceae
- Lappula tadshikorumBoraginaceae
- Lappula anocarpaBoraginaceae
- Lappula balchaschensisBoraginaceae
- Lappula brachycentraBoraginaceae
- Lappula caespitosaBoraginaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.