Hypericum linariifolium Vahl

Herbaceous perennial, woody stock, up to 0.27 m high. Stems erect or upright, sometimes with decumbent lateral stems, up to 1.8 mm diam., terete, 2-lined, black glands absent. Leaves 7.0–26.0 mm long, 2.0–4.5 mm wide, linear-lanceolate, linear-ovate or narrowly oblong-lanceolate, glabrous, reticulate tertiary veins absent; pellucid glands sparse; black glands intramarginal and scattered on lamina; apex obtuse; margin entire; base obtuse or rounded; sessile. Inflorescence terminal, in cymes, flowers 5–8. Pedicels 1.0–2.0 mm long. Bracteoles absent. Sepals 5, 3.0–3.5 mm long, 1.0–1.2 mm wide, equal, sepals similar to the bracts subtending inflorescence branches, ovate or elliptic-ovate; pellucid glands present, linear; black glands present; apex acute; margin ciliate, fringed with stalked black glands. Petals c. 10.0 mm long, yellow, black glands on margin in the upper part. Stamens in 3 bundles; anthers c. 0.2 mm long, anther gland orange or orange-brown. Styles 3. Fruit a capsule, 2 times length sepals.

Distinguished by the stems being terete and 2-lined, leaves 7.0–26.0 mm long, linear-lanceolate, linear-ovate, narrow oblong-lanceolate and with black glands near margin, and the sepals, petals, and inflorescence bracts being fringed with a distinctive row of stalked black glands.

Originally collected from a rough lawn.

Ecroyd et al. (1990, p. 37). Voucher: NZFRI 17807, 1988.