Based on: P.B. Heenan (2014)
Taxon profile for this taxon
Taxon Profile

Back to Top

Hypericum pulchrum L.

Hypericum pulchrum inflorescence. © Landcare Research 2010
Hypericum pulchrum inflorescence. © Landcare Research 2010

Classification

Nomenclature

Scientific Name:
Hypericum pulchrum L., Sp. Pl., 786 ( [1753])

Description

Herbaceous perennial, woody stock, rhizomatous, up to 0.9 m high. Stems erect, up to 1.8 mm diam., terete, without lines, black glands absent. Leaves 4.0–25.0 mm long, 4.0–20.0 mm wide, ovate or broadly elliptic, glabrous, reticulate tertiary veins absent; pellucid glands present; black glands absent; apex subacute, obtuse or rounded; margin entire; base obtuse, truncate or cordate; sessile. Inflorescence terminal, dichasial cymes usually in panicles, flowers 1–25, corolla 10.0–20.0 mm diam. Pedicels 7.0–14.0 mm long. Bracteoles 1.5–2.5 mm long, 0.5–1.3 mm wide, ovate, lanceolate or elliptic-ovate, apex subacute or obtuse. Sepals 5, 2.0–4.5 mm long, 1.0–2.5 mm wide, more or less equal, not accrescent, obovate, broadly elliptic or suborbicular; pellucid glands present, sometimes sparse or obscure; black glands present; apex obtuse or rounded; margin entire, black glands regularly spaced in upper ⅔. Petals 6.5–10.0 mm long, 3.2–4.0 mm wide, greater than sepals, broadly elliptic, ovate or elliptic-ovate, yellow, with a red tinge at anthesis, black glands present on upper ⅔, persistent after anthesis. Stamens mainly in 3 bundles, but often appearing in a ring, 29–42, 3.8–7.0 mm long; anthers 0.3–0.6 mm long, anther gland orange. Ovary 1.0–3.5 mm long, 1.5–2.2 mm wide, ovoid. Styles 3, 3.5–5.5 mm long, greater than or equal to ovary. Fruit capsule, 5.0–7.0 mm long, 3.3–4.2 mm wide, ellipsoid-ovoid or broadly ellipsoid-ovoid, light brown. Seeds 1.0–1.2 mm long, c. 0.4 mm wide, oblong, terete, olive green, light yellow-brown, papillate, apices obtuse or rounded.

Recognition

Distinguished by the stems being terete and without lines, the leaves without black glands, the sepals being obovate, broadly elliptic or suborbicular with an obtuse or rounded apex and the margin with a fringe of black glands, and petals with a fringe of black glands.

Distribution

Hypericum pulchrum distribution map based on databased records at AK, CHR and WELT.Image: K. Boardman © Landcare Research 2014
Hypericum pulchrum distribution map based on databased records at AK, CHR and WELT. Image: K. Boardman © Landcare Research 2014
North Island: Southern North Island.
South Island: Western Nelson, Sounds Nelson, Marlborough, Canterbury, Southland, Fiordland.

Habitat

Occurs in a variety of habitats including roadsides, banks, rock outcrops, boggy and swampy areas, depleted pasture, disturbed and regenerating scrub, and grassland.

Biostatus

Exotic

First Record

Cunningham (1956, p. 483). Voucher: CHR 70203, 1950.

Phenology

Flowering: Dec.–Feb.

Images

  • Hypericum pulchrum dehiscent capsule with persistent petals and stamens. © Landcare Research 2010
    Hypericum pulchrum dehiscent capsule with persistent petals and stamens. © Landcare Research 2010
  • Hypericum pulchrum flower bud with broadly elliptic sepals and sepal margin with prominent glands. © Landcare Research 2010
    Hypericum pulchrum flower bud with broadly elliptic sepals and sepal margin with prominent glands. © Landcare Research 2010
  • Hypericum pulchrum with 3 styles. © Landcare Research 2010
    Hypericum pulchrum with 3 styles. © Landcare Research 2010
  • Hypericum pulchrum seeds. © Landcare Research 2010
    Hypericum pulchrum seeds. © Landcare Research 2010
  • Hypericum pulchrum terete stem. © Landcare Research 2010
    Hypericum pulchrum terete stem. © Landcare Research 2010

Bibliography

Heenan, P.B. 2014: Hypericaceae. In: Breitwieser, I.; Brownsey, P.J.; Heenan, P.B.; Wilton, A.D. Flora of New Zealand — Seed Plants. Fascicle 1. Manaaki Whenua Press, Lincoln.
Linnaeus, C. 1753: Species Plantarum. Impensis Laurentii Salvii, Stockholm.
© 2010-2014