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Plants
Spiny Sheepbur
Lappula occidentalis
Authorship: (Watson) Greene
Notes
Lappula redowskii (Hornemann) Greene is a synonym.
Sources
[Lieb 1135]
Taxonomic Classification
KingdomPlantae
PhylumMAGNOLIOPHYTA (Flowering Plants)
ClassMAGNOLIOPSIDA (Dicots)
FamilyBORAGINACEAE (Borage Family)
GenusLappula
Speciesoccidentalis
Recent Observations
Sourced from iNaturalist
Flatspine Stickseed (opens in new tab)
crosaneJun 18, 2026
Flatspine Stickseed (opens in new tab)crosaneMay 29, 2026
Flatspine Stickseed (opens in new tab)crosaneJun 19, 2025
Flatspine Stickseed (opens in new tab)sylbirdMay 5, 2026Seward County, KS, USA
Flatspine Stickseed (opens in new tab)ag38Mar 22, 2026Drumheller 1 St W, Drumheller, AB T0J 0Y6, Canada
Lappula occidentalis cupulata (opens in new tab)stanshebsApr 10, 2008Clark County, NV, USA
Flatspine Stickseed (opens in new tab)saltyyuccaApr 11, 2026Las Cruces, NM, US
Flatspine Stickseed (opens in new tab)saltyyuccaApr 11, 2026Las Cruces, NM, US
Lappula occidentalis (opens in new tab)sheriff_woody_pctMar 30, 2026Clark County, NV, USA
Lappula occidentalis (opens in new tab)alexgraeffJul 3, 2026Billings County, ND, USA
Conservation assessments from the following sources:
- NatureServe Explorer
- IUCN Red List
- Texas Parks & Wildlife — Species of Greatest Conservation Need (SGCN)
| IUCN Red List | Not assessed |
|---|---|
| NatureServe Global (opens in new tab) | G5Secure |
| NatureServe (Texas) (opens in new tab) | SNRNot Ranked |
| Texas SGCN | Not assessed |