Triosteum aurantiacum horse gentian Caprifoliaceae TRAN; Bx, g; R, w (Z. Wang 2016);


Triosteum aurantiacum.Gary P. Fleming.Digital Atlas of the Virginia

Triosteum aurantiacum.© Gary P. Fleming.Digital Atlas of the Virginia Flora. ©.2014.Virginia Botanical (Accessed 5/2014).

Triosteum aurantiacum is a perennial herb to 1.3 m tall; stems less hairy than t. perfoliatum. 

Leaves opposite, tapering to distinct, unfused base, hairy below. 

Flowers red-purple, tubular, to 1.7 cm long, irregular, densely glandular-hairy, base swollen on one side, petal-lobes 5, unequal, spreading, calyx lobes to 1.8 cm long, 0.1 cm wide, hairy, linear; blooms May-July. 

Fruit fleshy, bright red-orange, Aug.-Oct. 

Wetland status: UPL. 

Frequency in NYC: Very infrequent.

 Origin: Native. 

Habitat: Rich woods, edges.