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Calyptridium umbellatum

Higher Taxonomy
Family: MontiaceaeView DescriptionDichotomous Key

Common Name: MINER'S LETTUCE FAMILY
Habit: Annual to perennial herb; generally fleshy. Stem: 1--many, generally glabrous. Leaf: simple, alternate or opposite. Inflorescence: axillary or terminal; cyme, raceme, panicle, umbel, or flower 1. Flower: bisexual, radial; sepals generally 2(9), free; petals (1)2--19, free or +- fused; stamens 1--many, epipetalous or not, anthers pink, rose, or yellow; ovary superior, chamber 1, ovules 1--many, placenta basal or free-central; styles (0)1--8, generally fused at base, branched. Fruit: capsule, circumscissile or 2--3-valved. Seed: 1--many, shiny or +- pebbly or sculptured, black or gray, generally with oil-filled appendage as food for ants.
Genera In Family: +- 22 genera, +- 230 species: generally temperate America, Asia, Australia, Europe, Kerguelen Is, New Zealand, southern Africa, poorly represented in Europe; some cultivated (Lewisia, Calandrinia). Note: All CA genera previously included in Portulacaceae; details of flowers, seeds require 20× magnification.
Unabridged Note: May include Hectorellaceae.
eFlora Treatment Author: John M. Miller, except as noted
Scientific Editor: Thomas J. Rosatti.
Genus: CalyptridiumView DescriptionDichotomous Key

Common Name: PUSSYPAWS
Habit: Annual, perennial herb, +- fleshy, from taproot or fibrous roots, glabrous. Stem: 1--several, generally spreading to ascending. Leaf: basal or basal and cauline, simple, oblanceolate to spoon-shaped; basal rosetted. Inflorescence: raceme, panicle, or umbel, scapose, bracts generally < sepals, leaf-like or not; flowers generally on 1 side of axis, persistent in fruit or not; pedicels appearing jointed at base with a transverse groove or constriction or not. Flower: sepals 2, ovate to reniform, generally scarious or scarious-margined, persistent in fruit; petals 2--4, < sepals, tips adherent, forming cap in fruit (fruit cap), falling as 1 unit; stamens 1--3, anthers pink, rose, or yellow; style included to exserted, stigmas 2. Fruit: 2-valved, generally compressed, narrowly oblong to +- round, generally translucent, deciduous or not. Seed: 1--many, black, dull, with fine to coarse papillae, to shiny, with papillae 0.
Species In Genus: 9 species: western North America. Etymology: (Greek: cap, for petal tips in fruit) Note: Calyptridium parryi var. arizonicum raised to species rank, as Calyptridium arizonicum, by Simpson et al. (2010) based on morphological and geographic distinctions.
eFlora Treatment Author: C. Matt Guilliams & John M. Miller

Calyptridium umbellatum (Torr.) Greene
NATIVE
Habit: Perennial herb < 6 dm; caudex short, thick; taproot slender to thick. Stem: generally spreading to ascending, not leafy. Leaf: basal 1.5--7 cm, rosettes generally >= 2; cauline generally 0. Inflorescence: terminal, umbel, compound (simple in small plants), 1--7 cm diam, generally 1 per rosette, dense; pedicel +- 0. Flower: sepals 3--8 mm, +- round, scarious; petals 4, 3--8 mm, white; stamens 3; style 2--4 mm, thread-like, exserted. Fruit: 2--3 mm, widely ovate to +- round, deciduous or not at maturity. Seed: 1--8. Chromosomes: 2n=44.
Ecology: Open, sandy to rocky soils, conifer forest, alpine; Elevation: 240--4300 m. Bioregional Distribution: KR, NCoRH, CaR, SN, GB; Distribution Outside California: to British Columbia, Montana, Wyoming, Utah. Flowering Time: May--Oct
Synonyms: Cistanthe umbellata (Torr.) Hershk.; Calyptridium umbellatum var. caudiciferum (A. Gray) Jeps.; Calyptridium umbellatum var. umbellatum
eFlora Treatment Author: C. Matt Guilliams & John M. Miller
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Citation for this treatment: C. Matt Guilliams & John M. Miller 2016. Calyptridium umbellatum, Revision 2, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=16852, accessed on April 29, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on April 29, 2016.


Calyptridium umbellatum
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© 2009 California Academy of Sciences
Calyptridium umbellatum
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© 2008 Neal Kramer
Calyptridium umbellatum
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© 2003 Steve Matson
Calyptridium umbellatum
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© 2007 George W. Hartwell
Calyptridium umbellatum
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© 2012 James M. Andre
Calyptridium umbellatum
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© 2010 Keir Morse

More photos of Calyptridium umbellatum in CalPhotos


Geographic subdivisions for Calyptridium umbellatum:
KR, NCoRH, CaR, SN, GB;
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.
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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).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

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