TIMBER POISONVETCH 



Astra'galus convalla'rius 1 



W36 

 (2 leaves) 



Flowers pea-like, almost white to 

 purplish, about % in. long, more or loss 

 erect, stalked, bracted, few, borne in 

 long-stalked clusters (racemes) arising 

 from the leaf axils 



Leaves alternate, long-stalked, di- 

 vided (odd-pinnate) into 7 to 17 

 leaflets, usually all but the end one in 

 pairs 



Leaflets flat, rather thin, linear, white- 

 hairy; lower leaflets larger than upper 



Bracts (stipules) at base of leafstalk 

 2, often somewhat united, papery 



Stems numerous, leafy, very slender, 

 spreading at base, much-branched, 

 sparingly white-hairy 



Petals 5, dissimilar: upper petal (ban- 

 ner) longest, erect, with edges some- 

 what bent back; side 2 petals (wings) 

 usually concealed under sides of ban- 

 ner; lower 2 united petals (keel) boat- 

 shaped, extended abruptly upward at 

 tip but scarcely beaked 



Outer united flower narts (calyx) 

 bell-shaped, about K m- long, often 

 densely black-hairy when voung, spar- 

 ingly so in age, with 5 slender teeth 

 shorter than united portion, persistent 



Taproot woody, slender, perennial 



Pod (legume) flattened, almost 

 straight, linear, up to IK in. long and 

 about y 4 in. wide, white-hairy, short- 

 stalked,, hanging down, 1-celled, 

 several-seeded, 2-valved; valves twist- 

 ing at maturity 



1 See footnote on following page. 



