Handsome East-Himalayan Balsam is an annual herb,
about 10-30 cm tall. It can be easily confused with
Mountain Balsam. Flowers are borne
in leaf-axils, in 1-2 flowered clusters, in the upper parts of the
plant. Flowers are rose straw, purplish pink, with dark red streaks,
flower-stalk slender, about 1.5-3 cm long, bracts lanceshaped, on the
top of the flower-cluster-stalk, about 2-5 mm long. Sepals are 3,
overlapping, 2 lateral ones flat, small, ovate, tip pointed to
tapering, hairless, about 6-10 x 4-7 mm long, lower sepal (Lip) is
large, funnel shaped, about 1-1.5 x 0.8-2 cm across, spurred, spur
thread-like, abruptly constricted, curved, about 1.2-2.5 cm long. Upper
petal is keeled or hoodlike, nearly round-inverted-heart-shaped,
pointedly crested, about 1.6 x 1 cm long. Lateral petals (wings), fused
in pairs, about 2-2.8 cm across, basal lobes elliptic oblong, about
1.3-1 cm across, distal lobes narrow elliptic to semi-ovate, about 1.9
x 1.1 cm across. Stamens are 5, anthers bi-locular. Stems are erect,
simple or sparsely branched, hairless. Leaves are alternate,
oblong-elliptic to lanceshaped-elliptic, about 2-15 x 0.6-4 cm across,
base wedge-shaped or shortly narrowed, margins rounded toothed-toothed,
tip tapering, lateral veins about 6-12 on either side of the midrib,
dark green above and paler beneath, minutely velvet-hairy both above
and beneath, leaf-stalk stout, hairless, about 1-3 cm long. Capsule is
narrow spindle-shaped or linear, swollen in the middle, about 1-1.3 cm
long, hairless, does not split open. Handsome East-Himalayan Balsam is
native to East Himalaya, SC China, Myanmar, Nepal, Thailand, at
altitudes of 600-2700 m. Flowering: August-October.