Parnassia glauca Raf.

Fen grass of parnassus (en)

Species

Angiosperms > Celastrales > Celastraceae > Parnassia

Characteristics

Herbs with caudices. Stems 10–60 cm. Leaves: basal in rosettes; petiole 1.5–17 cm; blade (of larger leaves) oblong to orbiculate-ovate, 20–70 × 10–50 mm, <longer than to ca. as long as wide>, base cuneate to subcordate, apex obtuse to subacute; cauline on proximal 1/2 of stem or absent. Flowers: sepals reflexed in fruit, oblong, elliptic, or ovate, 2.5–5 mm, margins hyaline, 0.2–0.5 mm wide, entire, apex rounded; petals 5–12-veined, oblong to ovate, 9–18 × 6–10 mm, length 2–4 times sepals, base cuneate to rounded, margins entire or undulate; stamens 7–10 mm; anthers 1.2–2.8 mm; staminodes 3-fid almost to base, gland-tipped, 4–7 mm, shorter than to ca. equaling stamens, apical glands elliptic-oblong to subreniform, 0.3–0.7 mm; ovary green. Capsules 12–14 mm. 2n = 32.
More
Plants 2–4 dm; blades of basal lvs stiff and leathery, ovate to round-ovate, 3–5 × 1.5–4.5 cm, blunt to subacute, at base broadly rounded to subcordate, decurrent on the upper part of the petiole; cauline lf usually present, at or well below the middle, sessile or short-petioled, the blade like the basal ones but smaller; pet sessile, 10–18 mm, with several strong veins, the central 5 usually unbranched; staminodes white, 4–7 mm, a little shorter than the stamens, 3-parted for 3/5 or 4/5 their length; 2n=32. Calcareous bogs, shores, and wet meadows; Nf. and Que. to Sask., s. to N.J., Pa., Ind., Io., and S.D. Aug., Sept. (P. americana; P. caroliniana, misapplied)
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2 - 0.4
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
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Fruit color -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

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

Usage

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

Cultivation

Mode -
Germination duration (days) 30 - 180
Germination temperacture (C°) 12 - 18
Germination luminosity -
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Optimum temperature (C°) -
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Vigor -
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Images

Flower

Parnassia glauca flower picture by Liz Meeks (cc-by-sa)

Distribution

Parnassia glauca world distribution map, present in Canada and United States of America

Conservation status

Parnassia glauca threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:792089-1
WFO ID wfo-0001135374
COL ID 4DQ6S
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Parnassia rotundifolia Parnassia repanda Parnassia glauca