This is an addition to the species overview made by Hong. Apparently he hasn’t visited the site in Northern Iran where it grows and from the descriptions and pictures we are inclined to rank it different from P. daurica subsp mlokosewitschii (geographically far away) or P. daurica subsp tomentosa (nearby, but unlike this plant). It is an accepted name by The Royal Botanic Gardens, Kew.
P.daurica subsp wendelboi(1)
Plant 20-40 cm high, more or less hairy only on the lower surface of leaflets and outer side of sepals. Stems simple. Scales at the base of stem up to 8 × 1.5 cm, oblong, brownish violet to purple. Lower leaves biternate; petioles 5-9 cm long; leaflets 4-8 × 3.5-6 cm, orbicular to broadly elliptic; upper leaves smaller, simply ternate. Flowers solitary, terminal. Sepals ca. 1.5 cm long and broad, semiorbicular to oblong, rounded at the apex, pale green. Petals 4-4.5 cm long, elliptic to broadly ovate, pure yellow. Filaments yellow; anthers ca. 4. 5 mm long. Carpels 3-4, densely hairy.
Azerbaijan/Iran: Asalem to Khalkhal, after the pass, 2000 m
This species grows on a shrubland slope of high elevations in a restricted area near Khalkhal, Azerbaijan. Some of the component species are Berberis integerrima Bunge, Arum kotschyi Boiss., Verbascum gossypinum M. Bieb. and Allium akaka Gmelin.
Morphologically, it is clearly different from the other species of Iran and looks like the characters of P. mlokosewitschii Lomakin from Caucasus, Georgia. In P. mlokosewitschii plants are taller to 100 cm (not 20- 40) and leaflets are narrow ovate to ovate (not broadly elliptic to broadly ovate). Moreover, according to the notes of the authors of P. wendelboi, the two species differ in ecological preferences.
- Assadi, M. “A taxonomic revision of the genus Paeonia (Paeoniaceae) in Iran.” In: Iran. J. Bot., 2016, vol 22, no 2, pp. 75-78.