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Cerastium fontanum subsp. vulgare
COMMON MOUSE-EAR CHICKWEED

Higher Taxonomy
Family: CaryophyllaceaeView DescriptionDichotomous Key

Common Name: PINK FAMILY
Habit: Annual to perennial herb; rarely dioecious (Silene), taprooted or rhizome generally slender. Leaf: simple, generally opposite (subwhorled), entire, pairs at nodes often +- connected at bases; stipules generally 0; petiole generally 0. Inflorescence: generally cyme, generally open; flowers 1--many; involucre generally 0 (present in Dianthus, Petrorhagia). Flower: generally bisexual, radial; hypanthium often present but obscure; sepals (4)5, +- free or fused into a tube, margins generally scarious, more so on inner 2 or not, tube generally not scarious, awns generally 0; petals (4)5 or 0, generally tapered to base (or with claw long, limb expanded), entire to 2--several-lobed, limb generally without scale-like appendages adaxially, generally without ear-like lobes at base; stamens generally 10, generally fertile, generally free, generally from ovary base; nectaries 0 or 5; ovary superior, generally 1-chambered, placentas basal or free-central, styles 2--5 with 0 branches or 1 with 2--3 branches. Fruit: capsule or utricle (rarely +- dehiscent), generally sessile.
Genera In Family: 83 or 89 genera, 3000 species: widespread, especially arctic, alpine, temperate northern hemisphere; some cultivated (Agrostemma, Arenaria, Cerastium, Dianthus, Gypsophila, Lychnis, Sagina, Saponaria, Silene, Vaccaria). Note: Apetalous Caryophyllaceae can also be keyed in Rabeler & Hartman 2005 FNANM 5:5--8.
eFlora Treatment Author: Ronald L. Hartman & Richard K. Rabeler, except as noted
Scientific Editor: Thomas J. Rosatti.
Genus: CerastiumView DescriptionDichotomous Key

Common Name: MOUSE-EAR CHICKWEED
Habit: Annual, perennial herb, erect to mat-forming; taproot or rhizomes present. Leaf: blade linear to ovate; vein 1; axillary leaf clusters generally 0. Inflorescence: terminal or axillary; flowers few to many, open to dense; pedicels 1--36+ mm. Flower: sepals (4)5, 3--12 mm, free, lanceolate to ovate, hairy to glandular-hairy, hairs generally not exceeding tip; petals 0 or (4)5, 2.5--15 mm, +- 2-lobed, white [purple tinged]; stamens (4,5)10; styles (4)5, 0.5--3.3 mm. Fruit: capsule, cylindric, often +- curved in upper 1/2; teeth (8)10, spreading to recurved. Seed: several to many, pale to red-brown.
Species In Genus: +- 180 species: worldwide, especially northern temperate. Etymology: (Greek: horn, from fruit shape)

Cerastium fontanum Baumg. subsp. vulgare (Hartm.) Greuter & Burdet
NATURALIZED
Habit: Perennial herb, often flowering 1st year, appearing annual, 6--35 cm; hairs nonglandular. Stem: generally non-flowering (mat-forming) and flowering (+- erect). Leaf: on flower stem 8--25 mm, lanceolate to oblong, +- widely so. Inflorescence: bract margins generally scarious; pedicels in fruit 1--4 × sepals. Flower: flower parts 5; calyx 4.5--7 mm, hairy, ascending, scarious margin of most outer sepals 0.2--0.6 mm wide; petals 4--5 mm, 1.5 mm < to 0.5 mm > sepals. Fruit: 6.5--11 mm. Seed: 0.6--0.7 mm. Chromosomes: 2n=126,136, generally 144.
Ecology: Disturbed areas, grassy slopes, damp woodland, marshy ground; Elevation: < 2200 m. Bioregional Distribution: NW, CaRH, c SNF, n&c SNH, SCoRO?, SCo, SnBr, PR; Distribution Outside California: North America; native to Europe. Flowering Time: Spring
Synonyms: Cerastium fontanum subsp. triviale (Spenner) Jalas
Unabridged Note: 1 other subsp., in Greenland, native to Europe.
eFlora Treatment Author: Ronald L. Hartman & Richard K. Rabeler
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Citation for this treatment: Ronald L. Hartman & Richard K. Rabeler 2016. Cerastium fontanum subsp. vulgare, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=49818, accessed on May 02, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 02, 2016.


Cerastium fontanum subsp. vulgare
click for enlargement
© 2009 Barry Breckling
Cerastium fontanum subsp. vulgare
click for enlargement
© 2008 Steve Matson
Cerastium fontanum subsp. vulgare
click for enlargement
© 2003 Steve Matson
Cerastium fontanum subsp. vulgare
click for enlargement
© 2013 Barry Breckling
Cerastium fontanum subsp. vulgare
click for enlargement
© 2003 Steve Matson
Cerastium fontanum subsp. vulgare
click for enlargement
© 2004 Steve Matson

More photos of Cerastium fontanum subsp. vulgare in CalPhotos


Geographic subdivisions for Cerastium fontanum subsp. vulgare:
NW, CaRH, c SNF, n&c SNH, SCoRO?, SCo, SnBr, PR;
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.