Commemorating Pierre d’Incarville (1506–57), a French missionary to China and correspondent with famous French botanist, Bernard de Jussieu, who named the genus.
Annual and perennial herbs. Leaves basal or along the stems, alternate, pinnate or deeply cut, occasionally entire, stems ridged towards the tips. Leaflets ovate, linear or elliptic, with serrated margins. Flowers terminal, solitary or in clusters, irregular, funnel-shaped. Stamens 4, not protruding. Fruit a capsule, cylindrical to 4-angled; seeds winged or with a tuft of hairs at each end.
Mostly rarely grown cool-climate plants for rockeries or borders; available from specialist nurseries.
Seeds or division.
Plants herbaceous (non-woody, though becoming so at the base).
16 species mostly from the Himalaya, C and E Asia.
Grierson (1961), Ingram (1962), Grey-Wilson (1998).
Source: (2002). Bignoniaceae. In: . Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press.