VVJ39 



CRAZYWEED 



Oxy'tropis lamber'tii, syn. Ara'gallus lamber'tii 



Flowers ^dark bluish or purplish (some- 

 times white), up to 1 in. long, bracted 

 pea-like, in end clusters (spikes), with 

 5, dissimilar petals 



Leaves basal, stalked, each with nu- 

 merous divisions (leaflets) 



Leaflets usually about 1 1 to 1 7, paired 

 except fpr. end one, narrowly lance- 

 shaped, stalkless, finely silky-hairy 



Bracts (stipules) scalelike, grown fast 

 to base of leafstalks 



Upper petal (banner) usually longer 

 than other petals, spreading 



Side petals (wings) 2, narrowed at 



Lower (2) united petals (keel) boat- 

 like, prolonged at tip into a slendei 

 beak; stamens 10, in 2 groups (9 and 

 1), united by their stalks 



Outer united flower parts (calyx) per- 

 sistent, usually fine-silky-hairy, bell- 

 shaped, with 5, nearly equal teeth 



Pods usually stalkless, erect, oblong- 

 lance-shaped, white-silky-hairy, incom- 

 pletely 2-celled, splitting down middle 

 on side next to main flower-head stalk 



Taproot thickened, woody, perennial, 

 often with much-branched, woody root 



Large losses have been attributed (apparently erroneously) to crazy weed 

 under tbe misnomer, white loco. In this discussion, however, crazyweed is 

 limited to the typically purple-flowered 0. lambertii, as originally described 

 by Pursh, 1 and does not include the white-flowered species, O. macovmii (syn. 

 O. spicata (Hook.) Standl., not (Pall.) O. and B. Fedtsch.) nor the closely 



1 See footnote on following page. 



