Sticky Eyebright is an annual, erect herb, 9-18 cm
tall, with stem round, glandular bristly, greenish in upper part,
brownish-purple in lower part, branched or unbranched. It is a
critically endangered herb, rediscovered recently (2020) after a gap of
179 years. Flowers are 2-lipped; tube cylindrical, 4.8-5.3 mm long,
glandular bristly outside, velvet-hairy inside, yellow with
brownish-purple tinge outside, yellow inside; upper lip obscurely
galeate, broadly oblong, 2-lobed, divided slightly beyond middle,
yellow with brownish-purple tinge outside, yellow inside; lobes 1.1-1.5
mm long, straight or slightly reflexed, tip rounded; lower lip 3-lobed,
yellow on both side, sparsely velvet-hairy outside, hairless inside;
lobes obovate-nearly round, 1.8-2 mm long, tip rounded. Stamens are 4,
didynamous, inserted at slightly above the base of flower tube,
enclosed by obscure galea, exerted slightly beyond the mouth of flower
tube; filaments 4-4.5 mm long. Style is as long as filaments, sparsely
velvet-hairy; stigma ovoid, yellow. Sepal-cup is bell-shaped, 5-lobed,
green; tube 0.7-1 mm long, 10-nerved, glandular bristly outside,
hairless inside; sepals unequal, 2-5 mm long, linear-narrow oblong,
glandular bristly on both side. Flowers are borne in raceme, in
leaf-axils as well as at branch-ends, stalked. Bract is single,
leaf-like, glandular bristly; flower-stalk 0.5-1 mm long, elongated in
fruits, glandular bristly. Leaves are opposite, palmately cut, 2-4-
partite, 4-10 x 0.5-1.5 mm, stalkless, glandular bristly on both
surface, midrib depressed above, prominent beneath; segments 3-8,
linear-oblong or narrow inverted-lanceshaped or sword-shaped, tip
pointed or blunt, margins entire, middle and lowers longer than others.
Capsules are oblong, 2.7-3 x 1.8-2 mm, compressed, bristly, light
green with brownish-purple tinge, tip slightly notched, with persistent
style. Seeds are numerous, ellipsoid, brownish-black, netveined. Sticky
Eyebright is very rare, known from Uttarakhand, Arunachal Pradesh and
Yunnan in China. Flowering: September-October.
Identification credit: Dipankar Borah
Photographed in Bomdilla, Arunachal Pradesh.
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The flower labeled Sticky Eyebright is ...