Lomatium utriculatum (Nutt. ex Torr. & Gray) Coult. & Rose
- Kingdom - Plantae – Plants
- Subkingdom - Tracheobionta – Vascular plants
Superdivision - Spermatophyta – Seed plants
- Division - Magnoliophyta – Flowering plants
- Class - Magnoliopsida – Dicotyledons
- Subclass - Rosidae
- Order - Apiales
- Family - Apiaceae – Carrot family
- Genus - Lomatium Raf. – desertparsley
- Species - - Lomatium utriculatum (Nutt. ex Torr. & A. Gray) J.M. Coult. & Rose – common lomatium
Lomatium vaseyi (Coult. & Rose) Coult. & Rose
General: Perennial from a slender taproot, 1-6 dm. tall. Leaves: Leaves chiefly cauline, soft, ternate-pinnately dissected, the ultimate segments crowded, pointed, up to 5 mm. long and less than 1 mm. wide. Flowers: Inflorescence a compound umbel, the rays as many as 15, unequal, 2-7 mm. long at maturity; involucre none; bractlets of the involucel well developed, 2-5 mm. long, obovate to elliptic, the tip often shallowly cleft; calyx teeth none; flowers bright yellow; pedicels 2-8 mm. long. 
West of the Cascades in Washington;British Columbia south to California. 
Seed sample from: 2011
Average Measurement: 5.7 x 3.2 x 0.5
Measurement Range: L: 5.25 – 6.5, W: 2.5 – 4, D: 0.25 – 0.6
Shape: Seeds schizoid, very flat and winged. Hilum and opposite apex are narrower than middle of seed.
Color: Inner seed face is dark reddish brown, with off-white wings. Hilum is tan.
Surface: Three off-white ridges run longitudinally across dark seed face. On opposite seed face, one off-white ridge bisects dark seed face from hilum to opposite apex. In most seeds, two shorter anZZXd lest distinct white markings run parallel to the main white ridge. Seed smooth and somewhat iridescent.