Common name: Perforate St John's-wort
Scientific name: Hypericum perforatum 貫葉連翹、 貫葉金絲桃、聖約翰草
Genus: Hypericum 金絲桃屬
Family: Hypericaceae 金絲桃科, St. John's wort family
Remarks:
Origin: native
Date: 22th June
43 An erect, glabrous, rhizomatous perennial, can reach up to 90 cm.
41-1 Stem with 2 raised lines. (vs stem with 4 raised lines, square in Hypericum maculatum 斑點金絲桃, imperforate St John's-wort)
37
38
36 Leaves to 2 cm.
36-1 Leaves with abundant small yellowish translucent glandular dots.
42 Underside of the leaf. Leaves are stalkless and nearly clasping the stem. (vs leaves are narrowed to base, not clasping stem in Hypericum maculatum 斑點金絲桃, imperforate St John's-wort)
42-1 Enlarged photo above to show the black dots on the leaf margin.
41 The inflorescence.
34 Flower bud.
34-1 Sepals are acute. (vs sepals are blunt in Hypericum maculatum 斑點金絲桃, imperforate St John's-wort)
39 Sepals shorter than petals.
32 Black dots along the edge of the petals.
31 Flowers about 2cm across.
31-1 A lot of stamens, 3 styles.
