Araliaceae - ARL 



Aralia nudicaulis L. - DornOl, GPF, HDH, KTZ, SF!, W&W, E/W 

 Aralia racemosa L. subsp. bicrenata (Woot. & Standi.) S. L. Welsh & Atwood - KTZ, SF!. 

 UTF, WJ, W&W 1 ; Wen98, E/W 



[Aralia racemosa L. - GPF, HDH, exp., IMF, SF!, W&W 



[Aralia racemosa L. subsp. racemosa] - W&W 1 



Asclepiadaceae - (see APO) 



Asparagaceae - ASG (including Anthericaceae and parts of LIL) 



(Identification sources: ) 



Asparagus officinalis L. - DornOl, GPF, HDH, IMF, KTZ, SF!, UTF, W&W, E/W 



Echeandia (see ATH) 



Leucocrinum (see ATH) 



Maianthemum (see RUS) 



Nolina (see RUS) 



Asteraeeae - AST (= Compositae) 



(Identification sources: ) 



Acanthoxanthium (see Xaiithiuni) 



* Achillea filipendulina Lam. - KTZ <UT> 



[WJ - Escaped cultivation and persisting in Idaho Springs CO area, also al Lvergreen exit in Jefferson Co. i 

 70, and scattered along roadsides in Boulder Co.] 



Achillea millefolium L. var. lanulosa (Nutt.) Piper - DornOl, IMF, E/W 

 [Achillea lanulosa Nutt.] - SF!, W&W 



[Achillea lanulosa Nutt. subsp. alpicola (Rydb.) D. D. Keck] - HDH 

 [Achillea lanulosa Null, subsp. lanulosa] - 1 1 1.1 II 

 [Achillea millefolium L.] - FNA, HDH, SF!, W&W, W&W 1 

 [Achillea millefolium L. subsp. lanulosa (Nutt.) Piper] - GPF, UTF 

 [Achillea millefolium L. var. alpicola (Rydb.) Garrett] - IMF, KTZ 

 [Achillea millefolium L. var. occidentalis DC] - KTZ 



* Achillea ptarmica L. - FNA 



[NS - uncertain whether persisting in our area outside of cultivation | 



Acosta (see Centaurea) 



Acourtia nana (Gray) Reveal & King - KWA, KTZ 

 [Perezia nana Gray] - KTZ, M&H 



Snow, N. January 200'). Checklist of Vascular Plants otitic Southern Rock\ Mountain Region. (Version 3). 



