Hypericum chapmanii W.P.Adams

Apalachicola st. johnswort (en)

Species

Angiosperms > Malpighiales > Hypericaceae > Hypericum

Characteristics

Shrubs, erect, <treelike>, to 40 dm, <bark thick-corky, striate, exfoliating in thin, papery sheets or plates>. Stems: internodes 4-lined at first, soon 4-angled, then terete, <not glaucous>. Leaf blades linear-subulate, 8–25 × 0.5–0.7 mm, <not glaucous>, base articulated, parallel or slightly expanded, margins revolute, apex acute, midrib unbranched. Inflorescences <shortly cylindric>, 1–3-flowered, often with single flowers or triads from 1–2 proximal nodes. Flowers 12–15 mm diam.; sepals deciduous, not enclosing capsule, 5, linear-subulate, unequal, 5–7 × 0.5 mm, <not glaucous>; petals 5, bright yellow, oblong-spatulate, 7–9 mm; stamens deciduous, 75; ovary 3-merous; <styles 2.5–4 mm>. Capsules narrowly pyramidal-ovoid, 6 × 2.4 mm. Seeds not carinate, 0.6–0.8 mm; testa finely foveolate-reticulate.
Life form perennial
Growth form tree
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 4.0
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) -

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 -

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:428407-1
WFO ID wfo-0001296060
COL ID 3NPFB
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Hypericum arborescens Hypericum chapmanii