Directory       News       Site Map       Home
    Jepson eFlora: Taxon page
Key to families | Table of families and genera

Previous taxon Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Previous taxon


Peter W. Ball

Perennial herb from caudex or rhizome [annual], generally glabrous, often with ± red marks on leaves, flowers when dry. Stem: scape with generally 1 leaf-like bract [scape 0]. Leaf: simple, basal [cauline], alternate [subopposite], generally petioled, often with ± red marks when dry; veins ± palmate. Inflorescence: 1-flowered [cyme]. Flower: generally bisexual, ± radial; hypanthium minute, free from ovary; calyx lobes generally 5; petals generally 5 [0], free, generally white; stamens generally 5, opposite sepals; staminodes generally 5, alternate stamens, lobes generally present, thread-like to oblong, gland-tipped; pistil 1, ovary superior, chamber ± 1, placentas 4 [3], axile below, parietal above, styles very short, stigmas [3]4. Fruit: [3]4-valved capsule. Seed: many, winged, netted.
2 genera, ± 70 species: northern temperate, low arctic, alpine, temperate South America (Lepuropetalon, Parnassia). [Zhang & Simmons 2006 Syst Bot 31:122–137] Formerly included in Saxifragaceae. —Scientific Editor: Thomas J. Rosatti.

Leaf: basal, blade ovate to reniform, entire, base tapered to cordate. Flower: petals white, with yellow, green or gray-brown lines.
± 70 species. (Mount Parnassus, Greece)
Unabridged references: [R.B. Phillips 1980, Ph.D. Dissertation, Univ of California, Berkeley]

Key to Parnassia

P. cirrata Piper
Leaf: 3–18 cm; blade 1–6 cm, round-ovate, base tapered to weakly cordate. Inflorescence: 17–43 cm; bract above scape middle, ovate, base cordate, clasping. Flower: calyx lobes 3–7 mm, elliptic, entire to minute-dentate, reflexed in fruit; petals 8–15 mm, ovate to ± elliptic, fringed basally; staminodes 3–6 mm, lobes < 15, ± equal, thread-like to linear, tips spheric; anthers 1.5–2.2 mm. Fruit: 5–13 mm. [Online Interchange]

P. cirrata var. intermedia (Rydb.) P.K. Holmgren & N.H. Holmgren CASCADE GRASS-OF-PARNASSUS
Leaf: larger blades (1)1.3–5 cm wide. Flower: larger petals (4)5–10 mm wide; longer fringe filaments 1–3(3.5) mm.
Wet places; 700–2900 m. Klamath Ranges; to Washington, Idaho, Nevada. Aug–Sep [Online Interchange] {CNPS list}

Previous taxon: Parnassia cirrata var. cirrata
Next taxon: Parnassia fimbriata


Name search

Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 25 2015
Citation for this treatment: [Author of taxon treatment] 2013. Parnassia, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 25 2015

Copyright © 2014 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.

Geographic subdivisions indicated for the distribution of Parnassia cirrata var. intermedia Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records


CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.