Hypericum tetrapterum Fr.

Peterwort (en), Millepertuis à quatre angles (fr), Millepertuis à quatre ailes (fr)

Species

Angiosperms > Malpighiales > Hypericaceae > Hypericum

Characteristics

Glabrous perennial herb with slender stolons; flowering stems erect, to 1 m tall, stout and woody at base, 4-angled with angles winged, with scattered black glands. Lvs sessile, 1-3.5 × 0.5-1.8 cm, elliptic to ovate or obovate, with pellucid glands beneath and sometimes sparse intramarginal black glands; longitudinal nerves 5-9; base ± amplexicaul; apex obtuse or rounded. Infl. terminal, a panicle of cymes, dense, many-flowered. Sepals equal, c. 4-5 mm long, narrow-lanceolate to lanceolate-elliptic, not accrescent, entire, with black glands sometimes sparse but usually 0; apex acuminate. Corolla 1-2 cm diam., pale yellow; petals elliptic-ovate, > sepals; black glands usually 0. Stamens in 3 bundles, < or nearly = petals. Styles 3, = ovary. Capsule 5-8 mm long, oblong or oblong-ovoid, dry. Seeds 0.7-0.9 mm long, cylindric, finely reticulate.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread anemochory
Mature width (meter) 0.1 - 0.5
Mature height (meter) 0.4 - 0.85
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 4-9
Soil humidity -
Soil texture -
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 7-10

Usage

Uses medicinal
Edible -
Therapeutic use -
Human toxicity phototoxic (whole)
Animal toxicity toxic (whole)

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) 30 - 90
Germination temperacture (C°) 15 - 16
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Hypericum tetrapterum habit picture by Tom Schöning (cc-by-sa)
Hypericum tetrapterum habit picture by Michal Swiecicki (cc-by-sa)
Hypericum tetrapterum habit picture by Sylvain Piry (cc-by-sa)

Leaf

Hypericum tetrapterum leaf picture by Martin Sanford (cc-by-sa)
Hypericum tetrapterum leaf picture by Tom Schöning (cc-by-sa)
Hypericum tetrapterum leaf picture by Michal Swiecicki (cc-by-sa)

Flower

Hypericum tetrapterum flower picture by Llandrich anna (cc-by-sa)
Hypericum tetrapterum flower picture by Hans Roelofsen (cc-by-sa)
Hypericum tetrapterum flower picture by Iris Volk (cc-by-sa)

Fruit

Hypericum tetrapterum fruit picture by Llandrich anna (cc-by-sa)
Hypericum tetrapterum fruit picture by Simon Allison (cc-by-sa)
Hypericum tetrapterum fruit picture by Else Nolden (cc-by-sa)

Distribution

Hypericum tetrapterum world distribution map, present in Albania, Andorra, Armenia, Australia, Austria, Azerbaijan, Belgium, Bulgaria, Bosnia and Herzegovina, Belarus, Canada, Switzerland, Czech Republic, Germany, Denmark, Algeria, Spain, France, United Kingdom of Great Britain and Northern Ireland, Georgia, Greece, Croatia, Hungary, Iran (Islamic Republic of), Iraq, Israel, Italy, Lebanon, Libya, Liechtenstein, Luxembourg, Morocco, North Macedonia, Malta, Netherlands, New Zealand, Poland, Romania, Russian Federation, Serbia, Slovakia, Slovenia, Sweden, Syrian Arab Republic, Turkey, Ukraine, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:433905-1
WFO ID wfo-0000728383
COL ID 3NQ97
BDTFX ID 35387
INPN ID 103329
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Hypericum confertum Hypericum quadratum Hypericum quadrialatum Hypericum quadrangulare Hypericum tetrapterum Hypericum acutum Hypericum quadrangulum var. tetrapterum Hypericum fallax var. quadrangulare Hypericum quadrangulum var. patulum

Lower taxons

Hypericum tetrapterum var. anagallifolium Hypericum tetrapterum var. corsicum Hypericum tetrapterum var. tetrapterum