Common Name: ST. JOHN'S WORT FAMILY 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.
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.
NATIVE 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
Botanical illustration including Hypericum scouleri
Citation for this treatment: Robert E. Preston & Jennifer Talbot 2012, Hypericum scouleri, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=28801, accessed on December 02, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on December 02, 2024.
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(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 occurrence).
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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.
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Duplicates counted once; synonyms included.
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Blue line denotes eFlora flowering time (fruiting time in some monocot genera).
