Botanical Survey of India | Flora of India

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Triadenum breviflorum (Wallich ex Dyer) Kimura in Nakai & Honda, Nova Fl. Japan 10: 79. 1951. Hypericum breviflorum Wallich [Cat. No. 4816. 1832, nom. nud.] ex Dyer in Fl. Brit. India 1: 257. 1874.


Perennial herbs or undershrubs up to 60 cm high; stems usually simple, terete. Leaves subsessile, 2 - 3.5 x 0.4 - 0.6 cm, oblong-elliptic to oblong-oblanceoiate, narrowed at base, obtuse to subacute at apex, chartaceous with pale gland dots. Flowers white, 1 - 3 in axillary and terminal cymes, 6 mm across; peduncles 1.5 - 5 mm. Sepals 5, 3 - 4.5 mm long, oblong-ovate to oblong, obtuse at apex, entire with pale glandular streaks. Petals 5, 5 - 6.5 mm long, oblong, punctate with pale brown glandular dots. Stamens 9 in 3 fascicles; filaments connate up to 1/3; hypogynous scales ca 1.5 mm long. Ovary 3.5 mm long, ovoid-oblong; styles ca 1 mm long, spreading at apex. Capsules ovoid, ca 7 x 3 - 3.5. Seeds ca 1 mm long, reddish-brown, oblong, rounded, densely reticulate, obscurely carinate.

Fl. Feb. - April; Fr. July - Oct.

Distrib. India: Meghalaya (Khasi hills); rare.

Bangladesh, Taiwan and Japan.

Notes. The Japanese species Triadenum japonicum (Blume) Makino is superficially allied to T. breviflorum (Wallich ex Dyer) Kimura in many characters but differs in leaf shape, inflorescence and petal colour.





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