Jepson eFlora: Taxon page
Vascular Plants of California
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

Hypericum scouleri

Higher Taxonomy
Family: HypericaceaeView Description 
Habit: Annual to shrub [tree]. Leaf: cauline, simple, opposite or whorled, often gland-dotted; stipules 0. Inflorescence: cyme, panicle, or flower 1, terminal or axillary. Flower: bisexual, radial; sepals persistent, generally 5, often fused at base, overlapping; petals generally 5, free; stamens generally many, free or +- fused into 3--5 clusters; pistil 1, ovary superior, chambers 1--3[5], placentas generally axile, style branches 3. Fruit: capsule, generally septicidal. Seed: many, small.
Genera In Family: 37 genera, 1610 species: worldwide, largely tropics. Note: Sometimes included in Clusiaceae.
eFlora Treatment Author: Robert E. Preston & Jennifer Talbot
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: HypericumView DescriptionDichotomous Key

Habit: Annual to shrub, glabrous. Leaf: sessile Inflorescence: generally terminal cymes, bracted. Flower: sepals [4]5; petals [4]5, deciduous or persistent, generally +- yellow; anthers occasionally black-dotted; ovary chambers 1 or 3(5), placentas 3(5), axile or parietal, projecting into chamber.
Etymology: (Greek name)
Reference: Robson 2002 Bull Nat Hist Mus London, Bot 32:61--123
Hypericum scouleri Hook.
Habit: Perennial herb 2--7 dm, taprooted or rhizomed. Stem: erect, few from base, slender; sterile axillary branches generally < 2 cm. Leaf: 1--3 cm, ovate to elliptic, flat, base +- clasping, margin black-dotted, lower surface obscurely dotted. Inflorescence: flowers generally 3--25 per stem. Flower: sepals 3--4 mm, oblong to ovate, generally obtuse, black-dotted; petals 7--12 mm, obovate, pale to bright yellow, black-dotted; stamens in 3 clusters, anthers black-dotted; styles 3--5 mm. Fruit: 6--7 mm, 3-lobed. Seed: < 1 mm, brown.
Ecology: Wet meadows, streambanks, mesic areas in chaparral, conifer forest; Elevation: < 2940 m. Bioregional Distribution: NW, CaRH, SN, SnFrB, SCoRO, TR, PR, MP; Distribution Outside California: to western Canada, Montana, New Mexico. Flowering Time: Jun--Sep
Synonyms: Hypericum formosum Kunth var. scouleri (Hook.) J.M. Coult.; Hypericum scouleri subsp. scouleri
Jepson eFlora Author: Robert E. Preston & Jennifer Talbot
Reference: Robson 2002 Bull Nat Hist Mus London, Bot 32:61--123
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Hypericum perforatum subsp. perforatum
Next taxon: Juglandaceae

Name Search

Botanical illustration including Hypericum scouleri

botanical illustration including Hypericum scouleri

Please use this Google Form for Contact/Feedback

Citation for this treatment: Robert E. Preston & Jennifer Talbot 2012, Hypericum scouleri, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 24, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora,, accessed on April 24, 2024.

Hypericum scouleri
click for enlargement
©2010 Barry Breckling
Hypericum scouleri
click for enlargement
©2007 Thomas Stoughton
Hypericum scouleri
click for enlargement
©2008 Keir Morse
Hypericum scouleri
click for enlargement
©2017 Keir Morse
Hypericum scouleri
click for enlargement
©2017 Keir Morse

More photos of Hypericum scouleri
in CalPhotos

Geographic subdivisions for Hypericum scouleri:
1. You can change the display of the base map layer control box in the upper right-hand corner.
2. County and Jepson Region polygons can be turned off and on using the check boxes.
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).


Data provided by the participants of the  Consortium of California Herbaria.
View all CCH records
All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

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 (fruiting time in some monocot genera).