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Minuartia douglasii

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: MinuartiaView DescriptionDichotomous Key

Common Name: SANDWORT
Habit: Annual, perennial herb, erect to mat-forming, taprooted or rhizomed. Leaf: blade thread-like to awl-shaped or narrowly oblong; veins or ribs 1--3. Inflorescence: terminal or axillary, open to +- dense; flowers 1--many; peduncles, pedicels 0.5--35+ mm. Flower: hypanthium short, obscure; sepals 5, +- free, 1.9--7 mm, +- lanceolate to ovate, glabrous to glandular-hairy; petals 5 or 0, 0.7--10 mm, entire or notched; stamens on an obscure to prominent disk; styles 3, 0.3--2 mm. Fruit: capsule, narrowly ovoid to widely elliptic; valves 3, ascending to recurved. Seed: 1--many, red-tan to red-, purple-, or black-brown.
Species In Genus: 175 species: arctic to Mexico, northern Africa, southern Asia. Etymology: (J. Minuart, Spanish botanist, pharmacist, 1693--1768)

Minuartia douglasii (Torr. & A. Gray) Mattf.
Habit: Annual, simple or often branched from base, 4--30 cm, finely glandular-hairy at least above, green or purple; taproot thread-like. Stem: erect to spreading. Leaf: 5--30 mm, generally 0.3 mm wide, thread-like, becoming curled, flexible, +- evenly spaced; axillary leaves 0. Flower: sepals 2.5--3.7 mm, obtuse to acute, margin not incurved, ribs generally 3; petals 1.7--2.1 × sepals. Seed: 1.3--2 mm; margin thin, wing-like, red-brown.
Ecology: Rocky, sandy slopes, flats in chaparral, oak and pine woodland, often serpentine; Elevation: 100--1800 m. Bioregional Distribution: NW, CaR, SNF, c SNH, GV, CW, SW, MP; Distribution Outside California: southern Oregon, Arizona. Flowering Time: Spring--early summer
Synonyms: Arenaria douglasii Fenzl ex Torr. & A. Gray; Arenaria douglasii var. emarginata H. Sharsm.
Unabridged Note: Variation in presence or absence of petal notch precludes recognition of Arenaria douglasii var. emarginata H. Sharsm.
eFlora Treatment Author: Ronald L. Hartman & Richard K. Rabeler
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botanical illustration including Minuartia douglasii


Citation for this treatment: Ronald L. Hartman & Richard K. Rabeler 2016. Minuartia douglasii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 30, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on April 30, 2016.

Minuartia douglasii
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© 2009 Thomas Stoughton
Minuartia douglasii
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© 2009 Neal Kramer
Minuartia douglasii
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© 2007 George W. Hartwell
Minuartia douglasii
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© 2010 George W. Hartwell
Minuartia douglasii
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© 2014 Keir Morse
Minuartia douglasii
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© 2007 George W. Hartwell

More photos of Minuartia douglasii in CalPhotos

Geographic subdivisions for Minuartia douglasii:
NW, CaR, SNF, c SNH, GV, CW, SW, MP;
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.