Lupinus albicaulis

From Puget Prairie Plants
Revision as of 15:54, 23 April 2012 by Matire02 (Talk | contribs)



  • Kingdom - Plantae – Plants
  • Subkingdom - Tracheobionta – Vascular plants

Superdivision - Spermatophyta – Seed plants

  • Division - Magnoliophyta – Flowering plants
  • Class - Magnoliopsida – Dicotyledons
  • Subclass - Rosidae
  • Order - Fabales
  • Family - Fabaceae – Pea family
  • Genus - Lupinus L. – lupine
  • Species - Lupinus albicaulis Douglas – sicklekeel lupine


Lupinus albicaulis Dougl. var. albicaulis Lupinus falcifer Nutt. ex Torr. & Gray (pro syn.) Lupinus quercetorum Heller Lupinus wolfianus C.P. Sm.

Plant Description

Bloom Period

May to July [1]


Chiefly west of the Cascades in Washington; Washington south to California. May to July [1]


Grasslands and prairies from the lowlands to moderate elevations.[1]


Good for use in soil stabilization in locations of poor soil fertility, and drought, Lupinus albicaulis has the ability to fix nitrogen and grow rapidly.[2]



Lupinus albicaulis

Abbreviation: LUAL

Seed sample from: 2011

Average Measurement: 5.7 x 4.4 x 2.1

Measurement Range: L: 5 - 6.5, W: 4 - 5, D: 1.5 - 2.5


Color: Seeds are mostly off-white, tan, or gray with darker brown or tan mottling. Speckles tend to be heavier at seed edges leading to a darkened appearance.

Surface: Seeds smooth and glossy with some concave pitting.

Latitudinal Cross Section: elliptical LUAL-lat.png

Longitudinal Cross Section: elliptical LUAL-long.png

Basic Explanations and Assumptions:

The dimensions for the seeds are length x width x depth. The location of the hilum is used as the base of the seed, and the length is measured from hilum to the opposite apex. Where a style is present, the length is measured from the hilum to the bottom of the style. Width is measured at a right angle to the length at the widest part. Depth is measured at a right angle to the intersection of height and width lines.

Measurements included are the mean average for each measurement of ten separate seeds.

All measurements in millimeters unless otherwise noted.

  1. 1.0 1.1 1.2