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Incarvillea semiretschenskia
Conservation status
Critically Endangered  (IUCN 2.3)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Bignoniaceae
Genus:	Incarvillea
Subgenus:	Incarvillea subg. Niedzwedzkia
Species:	I. semiretschenskia
Binomial name
Incarvillea semiretschenskia (B.Fedtsch.) Grierson
Synonyms
Niedzwedzkia semiretschenskia Fedtsch.

Incarvillea semiretschenskia is a rare perennial flower endemic to dry, rocky hillsides in Kazakhstan, placed on the IUCN Red List in 1997. It was first described as Niedzwedzkia semiretschenskia, the only species in the genus Niedzwedzkia. It has also been placed as the only species in Incarvillea subgenus Niedzwedzkia.

Description

The plant has numerous wiry upright stems growing to a height of 45 cm from a sub-shrub base. The leaves are deeply incised with linear lobes. The orange-pink tubular flowers are 6 cm long by 4 cm across. The fruits are 5 cm long and feature six very wavy wings. Ploidy 2n = 22.

Taxonomy

The species was first described by Boris Fedchenko in 1915 as Niedzwedzkia semiretschenskia, the only species in the genus Niedzwedzkia, named for the Russian botanist Vladislav Niedzwiecki. In 1931, Grierson transferred it to Incarvillea. A molecular phylogenetic study in 2005 found that Incarvillea semiretschenskia was basal to the rest of the genus Incarvillea, giving support to the placement in a separate subgenus, Incarvillea subgenus Niedzwedzkia. Unlike other species of the genus, it has winged capsules and septifragal dehiscence.

Cultivation

The plant demands well drained dry soil in a warm position exposed to full sun; it is hardy to -15 °C.

Accessions

• Tashkent Botanical Garden.

Institut of Botany and Phytointroduction, Almaty

References

1. Walter, K. S. & Gillett, H. J. (1998). 1997 IUCN Red List of Threatened Plants.
2. Czerepanov, S. K. (2007) Vascular plants of Russia and adjacent states (the former USSR).
3. ^ Phillips, R. & Rix, M. (1989). Perennials, Vol. 1, p. 187. Pan Books Ltd., London. ISBN 0-330-30258-2
4. ^ Chen, S. et al. (2005). Molecular phylogeny of Incarvillea (Bignoniaceae) based on ITS and TRN L-F sequences. American Journal of Botany 92 (4): 625-633.
5. "Niedzwedzkia semiretschenskia B. Fedtsch". The International Plant Names Index. Retrieved 2022-03-19.
6. Fedchenko, Boris Alekseevich (1915). "Niedzwedzkia". Rastitel'n. Turkestana (in Russian and Latin). Petrograd. p. 701. Retrieved 2022-03-19.{{citation}}: CS1 maint: location missing publisher (link)
7. "Incarvillea semiretschenskia (B. Fedtsch.) Grierson". The International Plant Names Index. Retrieved 2022-03-19.

• The New Plantsman Incarvillea semiretschenskia (Fedtsch.) Grierson Notes Roy. Bot. Gard. Edinb. 23:350 (1961)
• Winterholler, B. (2019). The Genus Incarvillea and mysterious Niedzwedzkia. Sankt-petersburg:SUPER-Isdatelstvo. -162 p.

• v
• t
• e

• IUCN Red List critically endangered species
• Bignoniaceae
• Flora of Kazakhstan
• Bignoniaceae stubs