About Hieracium triste Willd. ex Spreng.
Hieracium triste Willd. ex Spreng., also called slender hawkweed, is a perennial herb. It produces milky latex, which is often incorrectly called sap. This unbranched plant reaches 3 to 35 cm (1.2 to 13.8 inches) in total height, and rarely grows taller than 30 cm (12 inches, 1 foot). Its stem bears long hairs and some star-shaped hairs. Slender hawkweed grows in moist to wet open sites, ranging from mid-montane to alpine areas. It is most often found below the timberline in regions that support whitebark pine and alpine larch. It also grows in dry sites at lower elevations, in an area extending from Southern Colorado to Wyoming.