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Spergularia rubra

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: SpergulariaView DescriptionDichotomous Key

Habit: Annual, perennial herb, erect to sprawling; taprooted. Leaf: thread-like to linear, vein 1; stipules 1--11 mm, lanceolate to widely triangular, scarious, +- entire or splitting +- at tip, white to tan. Inflorescence: terminal, open to dense; flowers few to many; pedicels 0.5--28+ mm. Flower: sepals 5, united in basal 1/5, 1.5--10 mm, lanceolate to ovate, glabrous to glandular-hairy; petals 5, 0.6--9 mm, entire; stamens 2--10; styles 3, 0.3--1.9 mm. Fruit: capsule, ovoid; valves 3, spreading, tip recurved. Seed: few to many, dark brown, red-brown, or black, often winged.
Species In Genus: 60 species: western North America, western South America, Mediterranean. Etymology: (Latin: derivative of Spergula)

Spergularia rubra (L.) J. Presl & C. Presl
Habit: Annual or short-lived perennial herb, delicate. Stem: lower main 0.3--0.5 mm diam. Leaf: barely fleshy, 2--4+ per axillary cluster; stipules generally 3.5--5 mm, conspicuous, lanceolate, shiny, white, tip +- long-acuminate. Inflorescence: 1--3+ × compound or flowers 1 in axils; glandular-hairy. Flower: sepals fused 0.5--0.7 mm, lobes 2--3.2 mm, in fruit < 4 mm; petals pink; stamens 6--10; styles 0.6--0.8 mm. Fruit: 3.5--5 mm, 1--1.2 × calyx. Seed: 0.4--0.6 mm, red-brown to dark brown, wing 0; sculpture worm-like, minutely papillate. Chromosomes: 2n=18,36,54.
Ecology: Open forest, gravelly glades, meadows, mud flats, disturbed areas; Elevation: < 2400 m. Bioregional Distribution: NW, CaR, c SNF, n&c SNH, ScV, CW, SCo, SnGb, PR, DMtns; Distribution Outside California: to Yukon Territory, Montana, Colorado, New Mexico, eastern North America, South America; native to Mediterranean, Asia. Flowering Time: Spring--fall
eFlora Treatment Author: Ronald L. Hartman & Richard K. Rabeler
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botanical illustration including Spergularia rubra


Citation for this treatment: Ronald L. Hartman & Richard K. Rabeler 2016. Spergularia rubra, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on May 05, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on May 05, 2016.

Spergularia rubra
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© 2008 Keir Morse
Spergularia rubra
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© 2013 Barry Rice
Spergularia rubra
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© 2007 George W. Hartwell
Spergularia rubra
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© 2008 Keir Morse
Spergularia rubra
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© 2008 Keir Morse
Spergularia rubra
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© 2015 Steve Matson

More photos of Spergularia rubra in CalPhotos

Geographic subdivisions for Spergularia rubra:
NW, CaR, c SNF, n&c SNH, ScV, CW, SCo, SnGb, PR, DMtns;
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).

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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.