Hypericum dolabriforme Vent.

Straggling st. johnswort (en)

Species

Angiosperms > Malpighiales > Hypericaceae > Hypericum

Characteristics

Subshrubs, decumbent and woody (not rooting) at base, branching at base or throughout, 1.5–5 dm, <bark thin>. Stems: internodes 4-lined at first, then 2-lined to terete. Leaf blades linear-elliptic or linear-oblong to linear, 20–35 × 3–5 mm (main stem), base not articulated, narrowly cuneate to rounded, margins recurved to revolute, apex obtuse to acute, midrib unbranched. Inflorescences <obconic>, (1–)3–20-flowered, ± widely branched, sometimes with single flowers at immediately proximal nodes. Flowers 15–20 mm diam.; sepals persistent, not enclosing capsule, 5, ovate-lanceolate to lanceolate, <± foliaceous>, unequal, 5–8(–15) × 2–3(–8)mm; petals 5, yellow, curved-dolabriform, 10–13 mm; stamens deciduous, 120–200; ovary 3-merous. Capsules ovoid-conic, rostrate, 4–9 × 3–4 mm. Seeds carinate, 1.5–1.8 mm; testa reticulate-scalariform. 2n = 18.
More
Spreading or ascending perennial 2–5 dm, somewhat woody below, often rhizomatous but the stems clustered; lvs linear to linear-oblong, 2–4 cm, without evident lateral veins; cymes compact and few-fld; sep very unequal, the outer pair ovate or broadly lanceolate, 7–12 mm, the others smaller; pet 9–13 mm; stamens 120–200; stigmas 3(4), minute; fr ovoid, 5–8 mm; seeds 1.5–1.8 mm. Limestone outcrops, cedar-glades, etc.; Ky. and s. Ind. to Ga. June–Aug.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 30 - 90
Germination temperacture (C°) 10 - 12
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Hypericum dolabriforme unspecified picture

Distribution

Hypericum dolabriforme world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:433383-1
WFO ID wfo-0001295905
COL ID 3NPJ9
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Brathydium dolabriforme Hypericum dolabriforme Brathydium grandiflorum