Hypericum assamicum
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| Hypericum assamicum | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Hypericaceae |
| Genus: | Hypericum |
| Section: | Hypericum sect. Sampsonia |
| Species: | H. assamicum |
| Binomial name | |
| Hypericum assamicum | |
| Synonyms[2] | |
| |
Hypericum assamicum is a species of flowering plant in the St. John's wort family, Hypericaceae.[3] It is endemic to India. Hypericum assamicum is one of two species of Hypericum in the section Hypericum sect. Sampsonia.[3]
Hypericum assamicum is an erect, perennial or suffruticose (woody at the base) herb 20–40 cm (7.9–15.7 in) tall. The stems are terete with internodes 2–6.5 mm (0.1–0.3 in), shorter than or exceeding the leaves. The oblong to oblanceolate leaves are perfoliate, in pairs, thinly papery, up to 50 mm (2.0 in) long and 15 mm (0.59 in) broad, with glaucous undersides and obtuse to rounded tips. The margin of the leaf is entire, or rarely glandular-crenate, with dense, black glands. The leaves have broadly cuneate or rounded leaf bases. The flowerheads produce 12–18 flowers in corymbiform or subpyramidal branching patterns. Each flower is approximately 12 mm (0.47 in) with 5 sepals, 5 yellowish petals, and approximately 15 stamens. The cylindric to subglobose fruiting capsules reach 6 mm (0.24 in) in length with reddish-brown seeds, each seed 0.8 mm (0.031 in) long.[3] It flowers and fruits between March and April.[4]