Parnassia palustris L.

Marsh parnassia (en), Parnassie des marais (fr), Hépatique blanche (fr)

Species

Angiosperms > Celastrales > Celastraceae > Parnassia

Characteristics

Stems 2-4(-7), 12-20(-30) cm, usually with 1 leaf near middle. Basal leaves 3 to numerous; petiole 3-6(-8) cm; leaf blade abaxially greenish, often purple punctate, adaxially deep green, ovate or long ovate, occasionally triangular-ovate, 1.5-3 × 1-2.5 cm, base subcordate, apex rounded-obtuse or acuminate, often apiculate. Cauline leaf sessile, semiamplexicaul, similar to basal leaves, base often with several rusty brown appendages. Flower 2.2-3(-3.5) cm in diam.; hypanthium inconspicuous. Sepals densely purple-brown punctate, elliptic or oblong, 5-8 × 3-5 mm, margin entire, apex obtuse. Petals white, often purple punctate, broadly ovate or obovate, 1-1.5(-1.8) × 0.7-1(-13) cm, base with a short claw, margin entire or occasionally inconspicuously erose, apex rounded-obtuse or shortly acuminate. Anthers ellipsoid, ca. 3 mm; filaments 2.2-7 mm; staminodes to 1 cm, divided into (7-)9-21 filiform rays with globose glands at apex. Ovary superior, ovoid; style very short; stigma 4-lobed. Capsule ovoid. Seeds brown, glossy, oblong. Fl. Jul-Sep, fr. Oct. 2n = 18, (27), 36.
More
Herbs with caudices. Stems 8–35(–50) cm. Leaves: basal in rosettes; petiole 2–10 cm; blade (of larger leaves) ovate to suborbiculate, 6–40 × 4–30 mm, base rounded to cordate, apex rounded; cauline usually on proximal 1/2 of stem, rarely on distal 1/2. Flowers: sepals spreading or ± reflexed in fruit, linear to narrowly lanceolate, 4–11 mm, margins not hyaline, entire, apex subacute; petals 5–11-veined, obovate, (7–)8–17(–20) × 5–12 mm, length 1.5–2 times sepals, base rounded, margins entire; stamens 6–8 mm; anthers 1.5–2.8 mm; staminodes obovate, divided distally into (7–)9–27 gland-tipped filaments, 5–9 mm, ca. as long as stamens, apical glands suborbicular to ovoid, 0.2–0.5 mm; ovary green. Capsules (6–)8–10 mm. 2n = 18, 36.
Plants 2–4 dm; blades of basal lvs broadly ovate to subrotund, 1–3 cm, 3/4 to fully as wide, at base broadly rounded to more often cordate, not decurrent; cauline lf as large as the basal, broadly ovate, sessile and cordate-clasping; pet 5–17-nerved, 9–13 mm, half longer to twice as long as the lance-triangular green sep; staminodes green or yellow, 5–9 mm, dilated to an obovate or reverse-triangular scale with 9–23 short, slender filaments on the distal margin; 2n=18, 27, 36, 54. Calcareous shores and wet meadows; circumboreal, s. in Amer. to Nf., Mich., Minn., Wyo., and B.C.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread barochory
Mature width (meter) 0.08 - 0.09
Mature height (meter) 0.25 - 0.4
Root system -
Rooting depth (meter) 0.2
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Wet moorland, marshes and raised bogs to quite a high altitude.
Light 6-9
Soil humidity 8-9
Soil texture 1-6
Soil acidity 3-8
Soil nutriment -
Hardiness (USDA) 4-8

Usage

Uses fodder medicinal
Edible -
Therapeutic use Astringent (unspecified), Diuretic (unspecified), Epilepsy (unspecified), Nerves (unspecified), Palpitation (unspecified), Sedative (unspecified), Tonic (unspecified), Nervine (unspecified), Cardiotonic (unspecified), Convulsion (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions or seedlings.
Mode divisions seedlings
Germination duration (days) 30 - 180
Germination temperacture (C°) 15 - 20
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Parnassia palustris habit picture by Francois Mansour (cc-by-sa)
Parnassia palustris habit picture by Vladimír Valach (cc-by-sa)
Parnassia palustris habit picture by Laurent GUILLAUME (cc-by-sa)

Leaf

Parnassia palustris leaf picture by Francois Mansour (cc-by-sa)
Parnassia palustris leaf picture by Nicolas Crosse (cc-by-sa)
Parnassia palustris leaf picture by hejol bro (cc-by-sa)

Flower

Parnassia palustris flower picture by S R (cc-by-sa)
Parnassia palustris flower picture by Beatrice mollaret (cc-by-sa)
Parnassia palustris flower picture by Alfons Krismann (cc-by-sa)

Fruit

Parnassia palustris fruit picture by Isabelle Bellin (cc-by-sa)
Parnassia palustris fruit picture by Engel Ralf (cc-by-sa)
Parnassia palustris fruit picture by Francois Mansour (cc-by-sa)

Distribution

Parnassia palustris world distribution map, present in Afghanistan, Albania, Andorra, Austria, Azerbaijan, Belgium, Bulgaria, Bosnia and Herzegovina, Belarus, Canada, Switzerland, China, Czech Republic, Germany, Denmark, Algeria, Spain, Estonia, Finland, France, United Kingdom of Great Britain and Northern Ireland, Georgia, Greece, Croatia, Hungary, Iraq, Iceland, Italy, Japan, Kazakhstan, Kyrgyzstan, Lao People's Democratic Republic, Liberia, Liechtenstein, Lithuania, Luxembourg, Latvia, Morocco, North Macedonia, Montenegro, Mongolia, Netherlands, Norway, Pakistan, Poland, Korea (Democratic People's Republic of), Romania, Russian Federation, Serbia, Slovakia, Slovenia, Sweden, Tajikistan, Taiwan, Province of China, Ukraine, United States of America, and South Africa

Conservation status

Parnassia palustris threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:792120-1
WFO ID wfo-0000479955
COL ID 4DQ82
BDTFX ID 47942
INPN ID 112426
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Parnassia neogaea Parnassia palustris Parnassia mucronata Parnassia tenuis Parnassia alpina Parnassia europaea Enneadynamis polonorum Parnassia montanensis Parnassia californica Parnassia palustris f. nana Parnassia multiseta Parnassia obtusiflora Parnassia palustris var. neogaea Parnassia palustris subsp. neogaea Parnassia palustris subsp. obtusiflora Parnassia palustris var. palustris Parnassia palustris var. multiseta Parnassia palustris subsp. multiseta Parnassia palustris var. montanensis

Lower taxons

Parnassia palustris subsp. pseudoalpicola Parnassia palustris var. izuinsularis Parnassia palustris var. yakusimensis