Henckelia lallanii - Red Henckelia

Red Henckelia is a perennial erect herb, 50-100 cm tall. It is different from all other species of Henckelia by its reddish orange corolla and only 1-flowered cyme. The species is named after Mr. Lallan Singh, a great nature lover and father of one of the discoverers of the species. Flowers are borne singly in leaf-axils, on flower-cluster-stalks 1-2.5 cm long, stout, flower-stalks 1.5-3.5 cm long. Sepal-cup is bell-shaped, fused up to 3/4 of its length, 1.8-2.6 cm long, light green, 5-lobed; tube 1.3-1.7 cm long; sepals unequal, 0.5-0.9 cm long, narrowly triangular-ovate, tip tapering, reflexed, margins entire. Flowers are funnel-shaped, 5-6.5 cm long, hairless on both sides, 2-lipped; tube 4.3-5.4 cm long, abruptly tapering towards base, slightly curved, reddish orange outside above the middle and pale white or creamy towards base, upper lip 2-lobed, reddish orange on both sides; lobes equal, round, 0.6-1 x 1-1.4 cm, tip rounded, margins entire; lower lip 3-lobed, reddish orange on both sides; lobes broadly obovate, 0.7-1.1 x 0.9-1.3 cm, tip blunt-rounded, margins entire. Stamens are 2, creamy, inserted 1.7-2 cm above from the flower base, hairless; filaments 1-1.2 cm long, staminodes 2. Pistil is 3.5-4 cm long. Stem is round, unbranched, green, hairless, rooting from the base; internodes 7-18 cm long. Leaves are in opposite perpendicular pairs, elliptic-ovate, 3-7.5 x 2-4 cm, tip pointed, base blunt-rounded or broadly wedge-shaped or slightly oblique, margins rounded toothed to toothed, above sparsely or densely hairy or becoming hairless; lateral veins 7-11 pairs. Leaf-stalks are 1-4 cm long. Capsules linear, 12-16.5 cm long, pale green, without persistent disc and sepal-cup, hairless. Red Henckelia is known only from Arunachal Pradesh. Flowering: July-August.