Jepson eFlora: Taxon page
Key to families | Table of families and genera
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon
Sherardia arvensis

Higher Taxonomy
Family: RubiaceaeView DescriptionDichotomous Key

Habit: Annual to tree, vine. Leaf: generally opposite (whorled), entire; stipules generally fused to stem, adjacent pairs occasionally fused, or occasionally leaf-like and appearing like whorled leaves. Inflorescence: cyme, panicle, spike, cluster, or flower 1, generally terminal and +- axillary. Flower: generally bisexual; calyx +- 4(5)-lobed, occasionally 0 (Galium, Crucianella) or 6 (Sherardia); corolla generally radial, 4(5)-lobed; stamens epipetalous, alternate corolla lobes, generally included; ovary generally inferior, chambers generally 2 or 4, style 1(2). Fruit: drupe, berry, or 2 or 4 nutlets [capsule].
Genera In Family: +- 500 genera, 6000 species: worldwide, especially tropics; many cultivated, including Coffea, coffee; Cinchona, quinine; many ornamental. Note: Diodia teres Walter doubtfully in California.
eFlora Treatment Author: Robert E. Preston & Lauramay T. Dempster, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: SherardiaView Description 

Species In Genus: 1 sp. Etymology: (Wm. Sherard, Dillenius' patron, John Ray's friend, 1659--1728)

Sherardia arvensis L.
Habit: Annual, matted. Stem: decumbent, generally many-branched at base, 7--16 cm, 4-angled. Leaf: whorls of 5--6; 4--13 mm, lanceolate or oblanceolate, margin thick, tip acute or weak-spined, stipules leaf-like. Inflorescence: head, axillary, involucred; flowers sessile, generally 2--3, generally included in involucre; involucre bracts +- free, +- = leaves, generally < peduncle. Flower: calyx lobes 6, persistent, tips +- dissected; corolla salverform, generally 4-lobed, pink or lavender; styles 2, thread-like, fused proximally. Fruit: 2 nutlets; hairs soft. Chromosomes: 2n=22.
Ecology: Pastures, disturbed areas, grassland, dry meadows, oak woodland; Elevation: 10--1160 m. Bioregional Distribution: NCo, NCoRO, NCoRI, CaRF, n SN, ScV, SnFrB, SCoRO, SCo; Distribution Outside California: to Idaho, Arizona, eastern United States; native to Mediterranean. Flowering Time: Mar--Jul
eFlora Treatment Author: Robert E. Preston & Lauramay T. Dempster
Jepson Online Interchange

Previous taxon: Sherardia
Next taxon: Rutaceae

Name Search
botanical illustration including Sherardia arvensis


Citation for this treatment: Robert E. Preston & Lauramay T. Dempster 2016. Sherardia arvensis, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on May 03, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on May 03, 2016.

Sherardia arvensis
click for enlargement
© 2009 Barry Breckling
Sherardia arvensis
click for enlargement
© 2004 Carol W. Witham
Sherardia arvensis
click for enlargement
© 2014 Julie Kierstead Nelson
Sherardia arvensis
click for enlargement
© 2008 Keir Morse
Sherardia arvensis
click for enlargement
© 2012 Neal Kramer
Sherardia arvensis
click for enlargement
© 2009 Julie Kierstead Nelson

More photos of Sherardia arvensis in CalPhotos

Geographic subdivisions for Sherardia arvensis:
NCo, NCoRO, NCoRI, CaRF, n SN, ScV, SnFrB, SCoRO, SCo;
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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

CCH collections by month

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