2 Technical species description (quoted from Evert 1983): 

 '• ?!an? perennial, short-caulescent, with on y one or two 

 cauline leaves, more or less scaberulous (7-) 10-25 cm 

 tall, from an elongated thickened taproot and also 

 occasionally from a several-branched caudex; leaves 

 petiolate, 3-pinnate or ternately 3-pinnate, blades 2.0 

 11 cm long, 1.5-10 cm wide, ovate m outline, the 

 ultimate divisions linear to oblanceolate, 2-5 mm long, 

 5-1 5 mm wide, obtuse to somewhat acute and mucronate; 

 petioles 1.5-5 cm long, the dilated and scarious 

 sheathing extending to the middle or ^b°^^' P^^^^^^^!,^' 

 3(4), scaberulous, exceeding the leaves m fruit 10 15 

 cm ling; involucre usually absent but °5"^ ^^"^J^^^'^.g 

 inconspicuous, filiform bract present; fertile rays 5 8 , 

 spreading, angled, unequal, (1.5)3-5 cm long in fruit; 

 sterile rays 4-8 spreading, 3-10 mm long m fruit, 

 involucel absent or of 1-6 inconspicuous linear- 

 lanceolate, attenuate, non-connate bractlets, 1-4 ijm 

 long; umbellets ca. 15-flowered, only 2-6 developing into 

 fruit; pedicels 3-10 mm long in fruit; petals l'^ ^^ l?""? 

 including the incurved apex, yellow, obovate, glabrous, 

 styles 1-1.5 mm long, spreading or reflexed; ovaries 

 glabrous to slightly scaberulous; ^^^^V f l°Jg-elliptic 

 glabrous, glossy, 5-8 mm long, 3-5 mm wide, the wings ca. 

 5-0.7 5 mm wide, narrower than the body; oil tubes 

 prominent, 1 in each interval, 2 on the commissure; 

 carpophore bipartite. 



3. Diagnostic characters: L. attenuatum differs from L. 

 ecus, which it resembles in habit, leaf dissection, and 

 fruit characters, by having a less conspicuous involucel 

 and greater overall scabrosity (Evert 1983). 



B. PRESENT LEGAL OR OTHER FORMAL STATUS 



1. Federal 



a. U.S. Fish and Wildlife Service: 3C (UDSI Jifh and 



Wildlife Service 1993); This signifies that the 

 species has "proven to be more abundant or 



widespread than previously believed and/or (is) 



not subject to any identifiable threat." 



b. U.S. Forest Service: none 



c. Bureau of Land Management: Lomatium attenautum is 



included on the BLM's list of proposed sensitive 

 species for Montana (USDI Bureau of Land Management 

 1993) . 



2. State: The Montana Natural Heritage Program ranks the 

 species G3 and 51 meaning that it is somewhat vulnerable 



27 



