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Vascular Plants of California
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Spergularia atrosperma
BLACK SEED SAND-SPURREY


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. Seed: appendage generally 0 (present in Moehringia).
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


Common Name: SAND-SPURREY
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)
Reference: Hartman & Rabeler 2005 FNANM 5:16--23
Spergularia atrosperma R. Rossbach
NATIVE
Habit: Annual, delicate. Stem: lower main 0.3--1 mm diam. Leaf: fleshy; axillary clusters 0; stipules 1--2.5 mm, inconspicuous, widely triangular, dull white to tan, tip acute to short-acuminate. Inflorescence: simple or 1--3+ × compound, generally glandular-hairy. Flower: sepals fused 0.2--0.5 mm, lobes 1.8--2.7 mm, < 3.5 mm in fruit; petals white to rosy; stamens 4--8; styles 0.4--0.8 mm. Fruit: 3.3--5 mm, 1--1.3 × calyx. Seed: 0.6--0.8 mm, +- shiny black, wing 0, rarely partial; sculpture worm-like, not papillate.
Ecology: Uncommon. Alkaline areas, mud flats, streambeds, sandy areas; Elevation: < 1500 m. Bioregional Distribution: GV, PR, MP; Distribution Outside California: Nevada. Flowering Time: Summer
Jepson eFlora Author: Ronald L. Hartman & Richard K. Rabeler
Reference: Hartman & Rabeler 2005 FNANM 5:16--23
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botanical illustration including Spergularia atrosperma

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Citation for this treatment: Ronald L. Hartman & Richard K. Rabeler 2012, Spergularia atrosperma, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=45078, accessed on November 21, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on November 21, 2019.

No expert verified images found for Spergularia atrosperma.



Geographic subdivisions for Spergularia atrosperma:
GV, PR, MP
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map of distribution 1
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.