Himalayan Alyssum is a curious Himalayan cousin of the common
garden flower Sweet Alyssum. It is a
small perennial herb, laxly
clustered, almost erect, 5-10 cm tall, branched mostly from the base,
clothed with star-shaped and branched prostrate hairs. Leaves are
linear, stalkless, 5-15 mm long, 1-2.5 mm broad. Flowers are borne in
10-20-flowered racemes, up to 6 cm long in fruit, ebracteate. Flowers
are about 4 mm across, white or pinkish; flower-stalk up to 8 mm long
in fruit, thread-like, somewhat erect. Petals are about 3.5 mm long,
2.5 mm broad. Stamens about 2-3 mm long; filaments not appendaged.
Sepals are about 2.5 mm long, 1.5 mm broad. Fruits are 3-5 mm long, 2-3
mm broad (exclusing 1-1.5 mm long style), ovate-oblong, somewhat
inflated uniformly, tip pointed, entire, densely velvet-hairy; seed 1
in each locule, about 2 mm long, ovate-oblong, brown. Himalayan Alyssum
is found in SW Siberia to China and W Himalaya, at altitudes of
1000-5000 m. Flowering: May-September.