Vigorous deciduous woody vine to 6m at maturity. Young stems dark purplish-brown and young leaves dark coppery-brown, becoming glossy dark green when mature. Leaves on flowering stems 5 cm x 3 cm. Flowers are produced in large heads in May and June (in Vancouver) then periodically throughout the summer. Long tubular flowers (6 to 7 cm long) are dark reddish-orange outside and paler yellow-orange on the inside. Whole flower effect is an intense orange colour (hence ‘Mandarin’), well set off by the complementary colours of the foliage and stems. No fragrance. Fruits not produced. Copy courtesy of UBC.