Lomatium utriculatum

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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

Plant Description

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. [1]

Bloom Period

April-June [1]


West of the Cascades in Washington;British Columbia south to California. [1]





LOUT BendSeedExtractory,SeedsofSuccess sd good.jpg
LOUT BeccaReilly sdl good.JPG

Abbreviation: LOUT

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.

Latitudinal Cross Section: elliptical Luzula lat.png

Longitudinal Cross Section: elliptical Luzula long.png


  1. 1.0 1.1 1.2 http://biology.burke.washington.edu/herbarium/imagecollection.php?Genus=Lomatium&Species=utriculatum