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
Acanthoscyphus parishii

Higher Taxonomy
Family: PolygonaceaeView DescriptionDichotomous Key

Habit: Annual to shrub [tree]. Stem: nodes swollen or not. Leaf: simple, basal or cauline, generally alternate; ocreae present or 0, generally scarious, persistent or not. Inflorescence: flower clusters in axillary to terminal cyme-, panicle-, raceme-, spike-, umbel- or head-like arrangements, entire inflorescence or main inflorescence branches generally subtended by bracts ("inflorescence bracts"); peduncles present or 0; flower clusters in Eriogoneae-Eriogonoideae subtended by involucre of >= 1 free or +- fused, sometimes awn-tipped bracts ("involucre bracts") or, in Polygonoideae and rarely in Eriogonoideae, not (if bracts completely fused, involucre "tubular"); pedicels in Eriogoneae each often subtended by 2 free, transparent, linear bractlets or in Polygonoideae all subtended by 2+ fused, membranous, wide bractlets. Flower: generally bisexual, small, 1--200 per node; perianth parts 2--6, generally in 2 whorls, free or basally fused, generally petal-like, often +- concave adaxially, often darker at midvein, often turning +- red or +- brown in age; stamens [1]3 or 6--9 in 2 whorls; ovary superior, 1-chambered, ovule 1, styles 1--3. Fruit: achenes, included in or exserted from perianth, generally 3-angled, ovoid or elliptic, generally glabrous.
Genera In Family: 48 genera, +- 1200 species: worldwide, especially northern temperate; some cultivated for food (Coccoloba, sea-grape; Fagopyrum, Rheum, Rumex) or ornamental (Antigonon, lovechain; Coccoloba; Muehlenbeckia; Persicaria; Polygonum), a few timbered (Coccoloba; Triplaris). Several (Emex; Fallopia; Persicaria; Polygonum; Rumex) are weeds. Note: Treatment of genera in Eriogonoideae based on monographic work of James L. Reveal. Involucre number throughout is number (1--many) per ultimate grouping, at tips of ultimate branches; flower number is per flower cluster or involucre, unless otherwise stated. Fagopyrum esculentum Moench not naturalized, considered an historical waif (or garden weed +- presently), therefore not treated.
eFlora Treatment Author: Mihai Costea, except as noted
Scientific Editor: Thomas J. Rosatti, Bruce G. Baldwin.
Genus: AcanthoscyphusView Description 

Species In Genus: 1 sp. Etymology: (Latin: thorn cup, for involucre awns)
eFlora Treatment Author: James L. Reveal & Thomas J. Rosatti
Reference: Ertter 1980 Brittonia 32:70--102

Acanthoscyphus parishii (Parry) Small
Habit: Annual, erect, glabrous. Leaf: basal; blades 1--7 cm, 0.5--2 cm wide; ocreae 0. Inflorescence: terminal, cyme-like, nodes, lower 1/2 of each internode glandular; peduncles erect to reflexed; involucre 1, 1.5--2 mm, tubular, glandular at tip, teeth 4(5) or generally 7--30(36), awns 2--5 mm, ivory or +- red. Flower: 3--20, 2--2.5 mm, hairy, sparsely glandular; perianth white or cream to rose, lobes 6, generally entire; stamens 9. Fruit: brown to maroon, elliptic, 1.7--2 mm, glabrous; embryo curved.

Synonyms: Oxytheca parishii Parry
eFlora Treatment Author: James L. Reveal & Thomas J. Rosatti
Reference: Ertter 1980 Brittonia 32:70--102
Jepson Online Interchange
Key to Acanthoscyphus parishii

Previous taxon: Acanthoscyphus
Next taxon: Acanthoscyphus parishii var. abramsii

Name Search


Citation for this treatment: James L. Reveal & Thomas J. Rosatti 2012, Acanthoscyphus parishii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on December 13, 2017.

Citation for the whole project: Jepson Flora Project (eds.) 2017, Jepson eFlora,, accessed on December 13, 2017.

Acanthoscyphus parishii var. cienegensis
click for enlargement
© 2007 Thomas Stoughton
Acanthoscyphus parishii var. abramsii
click for enlargement
© 2007 Steve Matson
Acanthoscyphus parishii var. goodmaniana
click for enlargement
© 2008 Thomas Stoughton
Acanthoscyphus parishii var. goodmaniana
click for enlargement
© 2007 Steve Matson
Acanthoscyphus parishii var. parishii
click for enlargement
© 2014 Keir Morse
Acanthoscyphus parishii var. goodmaniana
click for enlargement
© 2007 Steve Matson

More photos of Acanthoscyphus parishii in CalPhotos

Geographic subdivisions for Acanthoscyphus parishii:
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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.