Table 1. Comparison of morphological characters of Impatiens procumbens, I. reptans, I. crassiloba, I. ganpiuana, I. atherosepala and I. rhombifolia (data from protologue and type specimen). CharactersI. procumbensI. reptansI. crassilobaI. ganpiuanaI. atherosepalaI. rhombifoliaStemprostrate or procumbentprostrateprostrateprostrateno recordprostrateLeafovate or ovate-lanceolate, margin serrulate, 2-3 cm long, 1-1.5 cm wide, petiole 5-10 mm longovate or ovate-elliptic, margin crenate-serrate or serrate, 5-7 cm long, 2.5-3.5 cm wide, petiole 1-2 cm longovate, narrowly ovate or ovate-lanceolate, margin coarsely serrate, 2-7 cm long, 1-3 cm wide, petiole 5-20 mm longelliptic, narrowly elliptic or lanceolate, margin coarsely serrate, 3-6 cm long, 1.5-3.5 cm wide, petiole 1-2 cm longlanceolate, margin spinescent-serrate, 4-6 cm long, 1.5-2 cm wide, petiole 1-2 cm longrhombic or subrhombic, margin serrate, 2-5 cm long, 1.2-1.6 cm wide, petiole 5-10 mm longLateral veins5-66-76-84-66-85-6Flower1-2-flowered, 1.5-2 cm deep2-3-flowered, ca. 2.5 cm deep1-3-flowered, ca. 2.5 cm deep1- or 2-flowered, ca. 2 cm deep1-flowered, ca. 1.1 cm deep2-flowered, ca. 1.5 cm wideLateral sepalobliquely ovate, subfalcate, 3-veined, apex long cuspidate, 3-4 mm longfalcate-ovate, 3-veined, midvein apically stoutly mucronulate, 3-5 mm longlanceolate, small, 3-5-veined, apex cuspidate, 3-5 mm longovate, abaxial midvein narrowly carinate, 3-4 mm longovate, aristate, arista ca. as long as sepals, 3-veined, ca. 5 mm longyellow-green, ovate-orbicular, small, apex acute, ca. 5 mm longDorsal petalorbicular, abaxial midvein thickened, narrowly carinate, 8-10 mm in diam.orbicular, abaxial midvein fine, narrowly carinate, ca. 15 mm in diam.orbicular, abaxial midvein carinate, ca. 10 mm in diam.elliptic, abaxial midvein rostellate, carinate, ca. 10 mm long, ca. 8 mm wideorbicular, abaxial midvein cristate, ca. 8 mm in diam.orbicular, large, abaxial midvein thickened, ca. 15 mm long, ca. 13 mm wideLateral united petalsca. 17 mm long, basal lobes subtetragonous, distal lobes obovate-oblongca. 22 mm long, basal lobes orbicular, small; distal lobes dolabriformca. 16 mm long, basal lobes orbicular, small; distal lobes large, apex 2-lobedca. 18 mm long, basal lobes broadly ovate; distal lobes dolabriformca. 12 mm long, basal lobes orbicular; distal lobes dolabriform, longerca. 18 mm long, basal lobes red spotted, orbicular, distal lobes dolabriformLower sepalnavicular, narrowed into an incurved spur, ca. 20 mm longsubnavicular, narrowed into an incurved spur, acute or divaricate, ca. 20 mm longnavicular, narrowed into a curved, long spur, ca. 18 mm longfunnelform, narrowed into an incurved spur, ca. 10 mm longnavicular, abruptly contracted into an incurved spur, ca. 15 mm longnavicular, narrowed into an erect spur; spur ca. 18 mm longAntheracuteacuteobtuseobtuseacuteacute

Published as part of Huang, Rong-Xin, Yuan, Tao-Hua, Chen, Yi, Li, Mei-Jun & Bai, Xin-Xiang, 2023, Five new synonyms for Impatiens procumbens (Balsaminaceae) in China, pp. 179 in PhytoKeys 222 on page 179, DOI: 10.3897/phytokeys.222.97087