Yellow Horse Gentian, Yellowfruit Horsegentian, Narrow-leaved Horse-gentian, Lesser Horse-gentian, Yellow Tinkers Weed - Triosteum angustifolium
|
Triosteum angustifolium - Yellow Horse Gentian, Yellowfruit Horsegentian, Narrow-leaved Horse-gentian, Lesser Horse-gentian, Yellow Tinkers Weed. There are three species in Triosteum found in the United States, with the westernmost distribution being in Kansas. All three of these are widely distributed in the east and south. Triosteum angustifolium is a bit more of a southern species than the other two. That is exemplified by the fact that the places where it is Endangered are more northern states - Connecticut, Maryland, New Jersey, and Pennsylvania.
Found in:
AL, AR, CT, DC, DE, GA, IL, IN, KS, KY, LA, MD, MO, MS, NC, NJ, NY, OH, OK, PA, RI, TN, TX, VA, WV
Leave comments on Triosteum angustifolium at this link. | 
Distribution of Triosteum angustifolium in the United States and Canada:
Map courtesy of The Biota of North America Program.
Map color key
Search Our Database: Enter any portion of the Scientific, Common Name, or both.
Do a general Google search of the entire site:
#ad
 Follow USWildflowers on Twitter
| | Site: Blue Hole Area, Pigeon Mountain East, Walker County, GA Date: 2010-April-16 | Photographer: Gerald C. Williamson
Nikon D60
Tamron SP 90MM f/2.8 AF Macro | | The yellow or greenish-yellow blossoms are normally solitary. They are about a half-inch long and are in the leaf axils. The corolla lobes are uneven. The stigma generally extends well outside of the corolla. | | 
| | Site: Blue Hole Area, Pigeon Mountain, Walker County, GA Date: 2010-April-16 | Photographer: Gerald C Williamson
Nikon D60 | | Yellow Horse Gentian can grow up to 3 feet tall in rich forests. Its leaves are opposite, with the flowers growing in the axils. The leaves are generally more than three times as long as they are wide, up to 6 inches long. The leaves help differentiate the species in Triosteum when they are not blooming - Triosteum aurantiacum leaves are less than 3 times their length and are usually more than 2 inches wide. The flower of T. aurantiacum is a reddish purple, as is that of the third species, Triosteum perfoliatum. While all the leaves of the other two species are sessile, those of the middle pairs of leaves in T. perfoliatum are joined at the base, encircling the stem - thus the "perfoliatum" species epithet. | | Click on the photo for a larger image
| | Site: Blue Hole Area, Pigeon Mountain, Walker County, GA Date: 2010-April-16 | Photographer: Gerald C Williamson
Nikon D60 | | The sepals, bracts, and leaves of Yellow Horse Gentian are hairy, with many of the hairs being glandular. | | Click on the photo for a larger image
|
References used for identification and information:
|
|
| |
| #ad
|
|
